Olefin-based polymer compositions with good impact performance, stiffness and light transmittance

Abstract

A composition comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer, and b) at least one propylene-based polymer that has a MWD ≤ 5.0.

Description

OLEFIN-BASED POLYMER COMPOSITIONS WITH GOOD IMPACT PERFORMANCE, STIFFNESS AND LIGHT TRANSMITTANCE BACKGROUND OF THE INVENTION A recent trend in EV (Electric Vehicle) automotive interior and exterior applications is the development of translucent TPO materials. Such TPO materials can be readily separated / differentiated from other TPO materials, and can also be used in safety relevant applications, such as in LIDAR (Light Detection and Ranging) systems and ADAS (Advanced Driver Assistance Systems) mechanisms. These TPO materials also find application in automotive parts, such as bumper facia or interior door panels, to name just a few examples. The TPO requirements, especially for bumper facia, are a superior stiffness- hardness performance and excellent diffusive light transmittance. Conventional TPO formulations are typically not suitable for translucent parts, since their required filler contents (for example, talc levels > 10 wt.%) cause an increase in unfavored colorization and significantly reduce the light transmittance. Thus, there is a need for new TPO compositions that can provide a good balance of impact performance, stiffness and light transmittance. Preferably these compositions also maintain a stable neutral or white color. International Application PCT / US23 / 075387, with a filing date of September 28, 2023, discloses a composition comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer that comprises a density ≥ 0.870 g / cc and a soft segment melting temperature (SS-Tm) ≤ 35°C, and b) a polymer composition comprising at least one propylene homopolymer; and wherein the component a is present in an amount ≤ 50 wt%, based on the weight of components a and b. See abstract. Such compositions have excellent impact strength and light transmittance. International Publication WO 2022 / 258218 discloses a covering for a light-source comprising a polyolefin composition that comprises the following: (A) 50-80% by weight, of a propylene polymer comprising up to, and including, 40% by weight, based on the weight of (A), of units deriving from ethylene and / or at least one alpha-olefin of formula CH2=CHR1, where R1 is a linear or branched C2-C8 alkyl; (B) 15-35% by weight of an elastomeric component selected from the group consisting of: (BI) ethylene copolymers with at least one alpha-olefin of formula CH2=CHR2, where R2 is a linear or branched C1-C8 alkyl, (B2) saturated or unsaturated styrene or alpha-methyl styrene block copolymers, and (B3)combinations thereof; (C) 5-30% by weight of glass fibers, and (D) 0-5.0% by weight of a compatibilizer. The amounts of (A), (B), (C) and (D) are based on the total weight of (A)+(B)+(C)+(D), the total weight being 100%. See abstract. The propylene polymer (A) can be, for example, a propylene random copolymer, a polyolefin composition comprising a propylene random copolymer or an heterophasic propylene polymer comprising a crystalline or semi-crystalline matrix phase and a rubbery phase dispersed therein (see paragraph

[0033] ). U.S. Patent 8,921,491 discloses an impact modified composition comprising ethylene / alpha-olefin interpolymers. The ethylene / alpha-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0, and a molecular weight distribution, Mw / Mn, greater than about 1.3. In addition, or alternatively, the block ethylene / alpha-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF), wherein the fraction has a block index greater than about 0.3 and up to about 1.0, and the ethylene / alpha- olefin interpolymer has a molecular weight distribution, Mw / Mn, greater than about 1.4. See abstract. Exemplary polymers for blending include polypropylene (both impact modifying polypropylene, isotactic polypropylene, atactic polypropylene, and random ethylene- / propylene copolymers), various types of polyethylene, including high pressure, free-radical LDPE, Ziegler Natta LLDPE, metallocene PE, including multiple reactor PE (“in reactor blends of Ziegler-Natta PE and metallocene PE, such as products disclosed in U.S. Pat. Nos. 6,545,088, 6.538,070, 6,566.446, 5,844,045, 5,869,575, and 6,448,341), ethylene vinyl acetate (EVA), ethylene / vinyl alcohol copolymers, polystyrene, impact modified polystyrene, acrylonitrile butadiene styrene (ABS), styrene / butadiene block copolymers and hydrogenated derivatives thereof (SBS and SEBS), polyisobutylene (PIB) homopolymer, PIB-isoprene copolymer, EPDM and thermoplastic polyurethanes (see column 32, lines 32-45). The “soft segment Tm (°C) from the weighted DSC” of several of polymers are listed in Table 16 (see column 72, lines 6-29). See, for example, Table 27 (column 81) and Table 32 (column 85) for compositions containing a propylene homopolymer. See also Table 43 (column 89). U.S. Patent 7,893,166 discloses a class of ethylene / alpha-olefin block interpolymers characterized by an average block index, ABI, which is greater than zero and up to about 1.0, and a molecular weight distribution, MWD, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition, or alternatively, the block ethylene / alpha- olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (TREF), wherein the fraction has a block index greater thanabout 0.3 and up to about 1.0, and the ethylene / alpha-olefin interpolymer has a molecular weight distribution greater than about 1.3 (see abstract). The “soft segment Tm (°C) values from the weighted DSC” of several polymers are listed in Table 16 (see column 60, lines 11- 35). This patent discloses polymers for blending, which include polypropylene (see for example, column 25, lines 11-33). See also U.S. Patent 7,608,668. Additional compositions and / or parts (such as automotive parts) are described in the following references: U.S. Patent 10,557,005, U.S. Patent 7,947,793, U.S. Patent 8,084,537, U.S. Patent 7,592,397, U.S. Patent 7,863,379, U.S. Patent 8,573,665, U.S. Patent 5,925,703, U.S. Patent 8,455,087, U.S. Patent 7,741,397, U.S. Publication 2015 / 0291085, U.S. Publication 2012 / 0313392, International Publication WO2014 / 036292 and GB2552996A, However, as discussed above, there remains a need for new TPO compositions that can provide a good balance of impact performance, stiffness and light transmittance. This need has met as discussed below. SUMMARY OF THE INVENTION A composition comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer, and b) at least one propylene-based polymer that has a molecular weight distribution (MWD) ≤ 5.0. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows the DSC profiles (second heating curve) for METOCENE HM648T (the upper profile at 100°C), BRASKEM D115A (the middle profile at 100°C) and BRASKEM F1000HC (the lower profile at 100°C). Figure 2 depicts the “Melt Enthalpy (J / g) versus Temperature (°C)” for linear copolymers as described herein. DETAILED DRESCRIPTION OF THE INVENTION TPO compositions have been discovered that provide a good balance of impact performance, stiffness and light transmittance. As discussed above, a composition is provided, comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer, and b) at least one propylene-based polymer that has a molecular weight distribution (MWD) ≤ 5.0. The abovecomposition may comprise a combination of two or more embodiments, as described herein. The first composition may comprise a combination of two or more embodiments, as described herein. Each component a and b may independently comprise a combination of two or more embodiments, as described herein. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b has a MWD ≤ 4.9, or ≤ 4.8, or ≤ 4.7, or ≤ 4.6, or ≤ 4.5. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b has a MWD ≥ 2.0, or ≥ 2.2, or ≥ 2.4, or ≥ 2.6, or ≥ 2.8, or ≥ 3.0, or ≥ 3.2, or ≥ 3.4, or ≥ 3.6,≥ 3.8, or ≥ 4.0.In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b has a Tm1≤ 160°C, or ≤ 158°C, or ≤ 156°C, or ≤ 154°C, or ≤ 152°C, or ≤ 150°C, or ≤ 149°C, or ≤ 148°C. Note, Tm1is in reference to the second heating curve in the DSC analysis, as described herein, and refers to the highest peak temperature if the second heating curve has two or more melting peaks. See, for example, Figure 1. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b has a Tm1≥ 130°C, or ≥ 132°C, or ≥ 134°C, or ≥ 136°C, or ≥ 138°C, or ≥ 139°C, or ≥ 140°C,In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b has a Tm2, and where (Tm1– 11.0°C) ≤ Tm2≤ (Tm1– 5.0°C). Note, Tm2refers to the second highest peak temperature if the second heating curve has two or more melting peaks. See, for example, Figure 1. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one propylene-based polymer of component b is a propylene homopolymer. In one embodiment, or a combination of two or more embodiments, each described herein, component b comprises one propylene-based polymer, and further one propylene homopolymer.In one embodiment, or a combination of two or more embodiments, each described herein, component b comprises two propylene-based polymers, and further two propylene homopolymers. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin multi-block interpolymer (of component a) has a density ≥ 0.870 g / cc, or ≥ 0.871 g / cc, or ≥ 0.872 g / cc, or ≥ 0.873 g / cc, or ≥ 0.874 g / cc, or ≥ 0.875 g / cc, or ≥ 0.876 g / cc, or ≥ 0.877 g / cc, or ≥ 0.878 g / cc, or ≥ 0.879 g / cc, or ≥ 0.880 g / cc, or ≥ 0.881 g / cc, or ≥ 0.882 g / cc, or ≥ 0.883 g / cc, or ≥ 0.884 g / cc. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin multi-block interpolymer (of component a) has a density ≤ 0.910 g / cc, or ≤ 0.908 g / cc, or ≤ 0.906 g / cc, or ≤ 0.904 g / cc, or ≤ 0.902 g / cc, or ≤ 0.900 g / cc, or ≤ 0.898 g / cc, or ≤ 0.896 g / cc, or ≤ 0.894 g / cc, or ≤ 0.892 g / cc, or ≤ 0.890 g / cc, or ≤ 0.889 g / cc, or ≤ 0.888 g / cc, or ≤ 0.887 g / cc. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin multi-block interpolymer (of component a) has a SS-Tm ≤ 35°C, or ≤ 30°C, or ≤ 25°C, or ≤ 20°C, or ≤ 18°C, or ≤ 16°C, or ≤ 14°C, or ≤ 12°C, or ≤ 10°C, or ≤ 9°C, or ≤ 8°C, or ≤ 7°C, or ≤ 6°C. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin multi- block interpolymer (of component a) has a SS-Tm ≥ -20°C, or ≥ -18°C, or ≥ -16°C, or ≥ -14°C, or ≥ -12°C, or ≥ -10°C, or ≥ -8°C ≥ -6°C, or ≥ -4°C, or ≥ -2°C, or ≥ -1°C, or ≥ 0°C, or ≥ 1°C, or ≥ 2°C, or ≥ 3°C, or ≥ 4°C. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin multi-block interpolymer (of component a) has a melt index (MI or I2) ≥ 0.10, or ≥ 0.20, or ≥ 0.40, or ≥ 0.60, or ≥ 0.80, or ≥ 1.0, or ≥ 2.0 g / 10 min and / or ≤ 50, or ≤ 45, or ≤ 40, or ≤ 35, or ≤ 30, or ≤ 28, or ≤ 26, or ≤ 24, or ≤ 22, or ≤ 20, or ≤ 18, or ≤ 16, or ≤ 14, or ≤ 12, or ≤ 10, or ≤ 9.0, or ≤ 8.0, or ≤ 7.0, or ≤ 6.0, or ≤ 5.0 g / 10 min. In one embodiment, or a combination of two or more embodiments, each described herein, the first composition further comprises, as component c, at least one ethylene / alpha- olefin interpolymer, and further at least one ethylene / alpha-olefin copolymer. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one ethylene / alpha-olefin interpolymer (of component c) is a random ethylene / alpha-olefin interpolymer.In one embodiment, or a combination of two or more embodiments, each described herein, the weight ratio of component a to component c is ≥ 1.2, or ≥ 1.5, or ≥ 1.8, or ≥ 2.0, or ≥ 2.2, or ≥ 2.4 and / or ≤ 4.0, or ≤ 3.8, or ≤ 3.5, or ≤ 3.2, or ≤ 3.0, or ≤ 2.8, or ≤ 2.6. In one embodiment, or a combination of two or more embodiments, each described herein, the weight ratio of component b to component a is ≥ 1.1, or ≥ 1.2, or ≥ 1.4, or ≥ 1.6, or ≥ 1.8 and / or ≤ 6.0, or ≤ 5.8, or ≤ 5.5, or ≤ 5.2 ≤ 5.0, or ≤ 4.8, or ≤ 4.5, or ≤ 4.2, or ≤ 4.0, or ≤ 3.8, or ≤ 3.5, or ≤ 3.2, or ≤ 3.0, or ≤ 2.8, or ≤ 2.6, or ≤ 2.5. In one embodiment, or a combination of two or more embodiments, each described herein, the composition further comprises at least one filler. In one embodiment, or a combination of two or more embodiments, each described herein, the at least one filler is selected from talc, nano clay, or a combination thereof, and further selected from talc. In one embodiment, or a combination of two or more embodiments, each described herein, the composition has a MFR ≥ 5.0, or ≥ 7.0, or ≥ 10, or ≥ 12, or ≥ 15, or ≥ 18, or ≥ 20, or ≥ 22, or ≥ 24, or ≥ 26 g / 10 min and / or ≤ 100, or ≤ 80, or ≤ 60, or ≤ 50, or ≤ 48, or ≤ 45, or ≤ 42, or ≤ 40, or ≤ 38, or ≤ 36, or ≤ 34, or ≤ 32 g / 10 min. In one embodiment, or a combination of two or more embodiments, each described herein, the composition has a Light Transmittance (3.2 mm thickness), at RT (23°C), ≥ 30%, or ≥ 35%, or ≥ 40%, or ≥ 45%, or ≥ 50%, or ≥ 55%, or ≥ 60% and / or ≤ 100%, or ≤ 95%. Light Transmittance is determined as described herein. In one embodiment, or a combination of two or more embodiments, each described herein, the composition has a Dart Ductility, at -30°C (6.6 m / s), ≥ 70%, or ≥ 75%, or ≥ 80%, or ≥ 85%, ≥ 90%, or ≥ 95%, or 100%. In one embodiment, or a combination of two or more embodiments, each described herein, the composition has a Charpy Impact, at 23°C (RT) ≥ 400, or ≥ 410, or ≥ 420, or ≥ 430, or ≥ 440, or ≥ 450, or ≥ 460, or ≥ 470, or ≥ 480, or ≥ 490, or ≥ 500 J / m. In one embodiment, or a combination of two or more embodiments, each described herein, the composition has a Flexural Modulus ≥ 80, or ≥ 85, or ≥ 90, or ≥ 95, or ≥ 100, or ≥ 105, or ≥ 110 ksi. Also provided is an article comprising at least one component formed from the composition of an embodiment or a combination of two or more embodiments described herein. In a further embodiment, the article is an automotive part.Also provided is a method of forming an article, said method comprising mixing the composition of an embodiment or a combination of two or more embodiments described herein. Ethylene / Alpha-Olefin Multi-Block Interpolymers Ethylene / alpha-olefin multi-block interpolymers and copolymers comprises, in polymerize form, ethylene, and an alpha-olefin. Alpha-olefins include, but are not limited to, a C3-C20 alpha-olefins, further C3-C10 alpha-olefins, further C3-C8 alpha-olefins, such as propylene, 1-butene, 1-pentene, 1-hexene, and 1-octene. Ethylene / alpha-olefin multi-block interpolymers are characterized by multiple blocks or segments of two or more polymerized monomer units, differing in chemical or physical properties. In some embodiments, the multi-block interpolymers, and further copolymers, can be represented by the following formula: (AB)n, where n is at least 1, preferably an integer greater than 1, such as 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, or higher. Here, “A” represents a hard block or segment, and “B” represents a soft block or segment. Preferably the A segments and the B segments are linked (or covalently bonded) in a substantially linear fashion, as opposed to a substantially branched or substantially star- shaped fashion. In other embodiments, the A segments and the B segments are randomly distributed along the polymer chain. In other words, for example, the block interpolymers usually do not have a structure as follows: AAA-AA-BBB-BB. In still other embodiments, the block interpolymers do not usually have a third type of block or segment, which comprises different comonomer(s). In yet other embodiments, each of block A and block B has monomers or comonomers substantially randomly distributed within the block. In other words, neither block A nor block B comprises two or more sub-segments (or sub-blocks) of distinct composition, such as a tip segment, which has a substantially different composition than the rest of the block. The term “hard segments (HS),” as used herein, refer to blocks of polymerized monomer units, in which ethylene is present in an amount, for example, > 90 mol%, or ≥ 92 mol%, or ≥ 95 mol%, or ≥ 98 mol%, or ≥ 99 mol%, based on the total number of moles of polymerized monomers in the blocks. In one embodiment, ethylene is present in an amount ≤ 99.8 mol%, or ≤ 99.6 mol%, or ≤ 99.4 mol%, or ≤ 99.3 mol%, based on the total number of moles of polymerized monomers in the blocks. The term “soft segments (SS),” as used herein, refer to blocks of polymerized monomer units, in which ethylene is present in an amount, for example, ≤ 90 mol%, or ≤ 88mol%, or ≤ 86 mol%, or ≤ 84 mol%, or ≤ 82 mol%, based on the total number of moles of polymerized monomers in the blocks. In one embodiment, ethylene is present in an amount ≥ 60 mol%, or ≥ 65 mol%, or ≥ 70 mol%, or ≥ 75 mol%, or ≥ 80 mol%, based on the total number of moles of polymerized monomers in the blocks. The soft segments can be present in the ethylene / octene multi-block interpolymer from 1 wt%, or 5 wt%, or 10 wt%, or 15 wt%, or 20 wt%, or 25 wt%, or 30 wt%, or 35 wt%, or 40 wt%, or 45 wt% to 50 wt%, or 55 wt%, or 60 wt%, or 65 wt%, or 70 wt%, or 75 wt%, or 80 wt%, or 85 wt%, or 90 wt%, or 95 wt%, or 99 wt% of the total weight of the ethylene / octene multi-block interpolymer. Conversely, the hard segments can be present in similar ranges. The soft segment weight percentage and the hard segment weight percentage can be calculated based on data obtained from DSC or NMR. Such methods and calculations are disclosed in, for example, USP 7,608,668, the disclosure of which is incorporated by reference herein, in its entirety. For example, the hard segment and the soft segment weight percentages may be determined as described in column 57 to column 63 of U.S. Patent 7,608,668, incorporated herein by reference. Typically, ethylene comprises 50 mole percent or a majority mole percent of the whole multi-block interpolymer; that is, ethylene comprises at least 50 mole percent of the whole interpolymer. More preferably ethylene comprises at least 60 mole percent, or at least 70 mole percent, or at least 80 mole percent, or at least 90 mole percent, with the substantial remainder of the whole polymer comprising at least one other comonomer that is preferably an alpha-olefin having three or more carbon atoms. As discussed, the ethylene / alpha-olefin multi-block interpolymers comprise two or more chemically distinct regions or segments (referred to as “blocks”), preferably joined in a linear manner. In an embodiment, the blocks differ in the amount or type of incorporated comonomer, density, amount of crystallinity, crystallite size attributable to a polymer of such composition, type or degree of tacticity (isotactic or syndiotactic), region-regularity or regio- irregularity, amount of branching (including long chain branching or hyper-branching), homogeneity or any other chemical or physical property. Compared to block interpolymers of the prior art, including interpolymers produced by sequential monomer addition, fluxional catalysts, or anionic polymerization techniques, the present ethylene / alpha-olefin multi-block interpolymer is characterized by unique distributions of both polymer polydispersity (PDI or Mw / Mn or MWD), polydisperse block length distribution, and / or polydisperse block number distribution, due, in an embodiment, to the effect of shuttling agent(s) in combination with multiple catalysts used in their preparation.The ethylene / alpha-olefin multi-block interpolymers, and further copolymers, in general, are produced via a chain shuttling process, such as, for example, described in U.S. Patent 7,858,706, which is herein incorporated by reference. Some chain shuttling agents and related information are listed in column 16, line 39, through column 19, line 44. Some catalysts are described in column 19, line 45, through column 46, line 19, and some co- catalysts in column 46, line 20, through column 51, line 28. Some process features are described in column 51, line 29, through column 54, line 56. See also the following: U.S. Patent 7,608,668; U.S. Patent 7,893,166; and U.S. Patent 7,947,793 as well as US Patent 8,476,393. See also U.S. Patent 9,243,173. In an embodiment, the ethylene / alpha-olefin multi-block interpolymer (for example, an ethylene / octene multi-block interpolymer) is produced in a continuous process and possesses a polydispersity index (Mw / Mn) from 1.7 to 3.5, or from 1.8 to 3, or from 1.8 to 2.5, or from 1.8 to 2.2. When produced in a batch or semi-batch process, the ethylene / alpha- olefin multi-block interpolymer (for example, an ethylene / octene multi-block interpolymer) usually has Mw / Mn from 1.0 to 3.5, or from 1.3 to 3.0, or from 1.4 to 2.5, or from 1.4 to 2.0. In addition, the ethylene / alpha-olefin multi-block interpolymer (for example, an ethylene / octene multi-block interpolymer) typically possesses a PDI (or Mw / Mn) fitting a Schultz-Flory distribution rather than a Poisson distribution. In one embodiment, the ethylene / alpha-olefin multi-block interpolymer (for example, an ethylene / octene multi-block interpolymer) has both a polydisperse block distribution as well as a polydisperse distribution of block sizes. This results in the formation of polymer products having improved and distinguishable physical properties. The theoretical benefits of a polydisperse block distribution have been previously modeled and discussed in Potemkin, Physical Review E (1998) 57 (6), pp.6902–6912, and Dobrynin, J. Chem. Phys. (1997) 107 (21), pp.9234– 9238. In an embodiment, the ethylene / alpha-olefin multi-block interpolymer (such as an ethylene / octene multi-block interpolymer) has a most probable distribution of block lengths. DEFINITIONS Unless stated to the contrary, implicit from the context, or customary in the art, all parts and percentages are based on weight, and all test methods are current as of the filing date of this disclosure. The term “composition,” as used herein, includes a mixture of materials, which comprise the composition, as well as reaction products and decomposition products formedfrom the materials of the composition. Any reaction product or decomposition product is typically present in trace or residual amounts. The term “polymer,” as used herein, refers to a polymeric compound prepared by polymerizing monomers, whether of the same or a different type. The generic term polymer thus includes the term homopolymer (employed to refer to polymers prepared from only one type of monomer, with the understanding that trace amounts of impurities can be incorporated into the polymer structure), and the term interpolymer as defined hereinafter. Trace amounts of impurities, such as catalyst residues, can be incorporated into and / or within the polymer. Typically, a polymer is stabilized with very low amounts (“ppm” amounts) of one or more stabilizers, such as one or more antioxidants. The term “interpolymer,” as used herein, refers to a polymer prepared by the polymerization of at least two different types of monomers. The term interpolymer thus includes the term copolymer (employed to refer to polymers prepared from two different types of monomers) and polymers prepared from more than two different types of monomers. The term “olefin-based polymer,” as used herein, refers to a polymer that comprises, in polymerized form, 50 wt% or a majority weight percent of an olefin, such as ethylene or propylene (based on the weight of the polymer), and optionally may comprise one or more comonomers. The term “propylene-based polymer,” as used herein, refers to a polymer that comprises, in polymerized form, a majority weight percent of propylene (based on the weight of the polymer), and optionally may comprise one or more comonomers. The term “ethylene-based polymer,” as used herein, refers to a polymer that comprises, in polymerized form, 50 wt% or a majority weight percent of ethylene (based on the weight of the polymer), and optionally may comprise one or more comonomers. The term “ethylene / alpha-olefin interpolymer,” as used herein, refers to an interpolymer that comprises, in polymerized form, 50 wt% or a majority weight percent of ethylene (based on the weight of the interpolymer), and an alpha-olefin. The term “ethylene / alpha-olefin interpolymer” does not include an “ethylene / alpha-olefin multi-block interpolymer,” as described herein. Preferably, the “ethylene / alpha-olefin interpolymer” is a random “ethylene / alpha-olefin interpolymer” – that is the alpha-olefin is randomly distributed within the interpolymer. The term, “ethylene / alpha-olefin copolymer,” as used herein, refers to a copolymer that comprises, in polymerized form, 50 wt% or a majority amount of ethylene (based on the weight of the copolymer), and an alpha-olefin, as the only two monomer types. The term“ethylene / alpha-olefin copolymer” does not include an “ethylene / alpha-olefin multi-block copolymer,” as described herein. Preferably, the “ethylene / alpha-olefin copolymer” is a random “ethylene / alpha-olefin copolymer” – that is the alpha-olefin is randomly distributed within the copolymer. The term “ethylene / alpha-olefin multi-block interpolymer,” as used herein, refers to a multi-block interpolymer that comprises, in polymerized form, 45 wt%, and further 50 wt%, or a majority weight percent of ethylene (based on the weight of the interpolymer), and an alpha-olefin. The term “ethylene / alpha-olefin multi-block copolymer,” as used herein, refers to a multi-block copolymer that comprises, in polymerized form, 45 wt%, and further 50 wt%, or a majority weight percent of ethylene (based on the weight of the copolymer), and an alpha-olefin, as the only two monomer types. See also prior discussion. The term “propylene homopolymer or polypropylene homopolymer,” as used herein, refers to a homopolymer that comprises, in polymerized form, propylene as the monomer type. The term “propylene / alpha-olefin interpolymer,” as used herein, refers to an interpolymer that comprises, in polymerized form, a majority weight percent of propylene (based on the weight of the interpolymer), and an alpha-olefin. Preferably, the “propylene / alpha-olefin interpolymer” is a random “propylene / alpha-olefin interpolymer” – that is the alpha-olefin is randomly distributed within the interpolymer. The term, “propylene / alpha-olefin copolymer,” as used herein, refers to a copolymer that comprises, in polymerized form, a majority amount of propylene monomer (based on the weight of the copolymer), and an alpha-olefin, as the only two monomer types. Preferably, the “propylene / alpha-olefin copolymer” is a random “propylene / alpha-olefin copolymer” – that is the alpha-olefin is randomly distributed within the copolymer. The term “propylene / ethylene interpolymer,” as used herein, refers to an interpolymer that comprises, in polymerized form, a majority weight percent of propylene (based on the weight of the interpolymer), and ethylene. Preferably, the “propylene / ethylene interpolymer” is a random “propylene / ethylene interpolymer” – that is the ethylene is randomly distributed within the interpolymer. The term, “propylene / ethylene copolymer,” as used herein, refers to a copolymer that comprises, in polymerized form, a majority amount of propylene monomer (based on the weight of the copolymer), and ethylene, as the only two monomer types. Preferably, the “propylene / ethylene copolymer” is a random “propylene / ethylene copolymer” – that is the ethylene is randomly distributed within the copolymer.The phrase “a majority weight percent,” as used herein, in reference to a polymer (or interpolymer or copolymer), refers to the amount of monomer present in the greatest amount in the polymer. The term “antistatic agent,” as used herein, refers to a compound used for treatment of materials, or their surfaces, in order to reduce or eliminate the buildup of static electricity. Commercially used antistatic agents are typically based on imidazolinium, pyridinium, piperidinium, and morpholinium salts. The term “nucleating agent,” as used herein, typically refers to a compound used to induce the formation of polymer crystals. Examples include, but are not limited to, as talc, sodium benzoate, phosphate esters and other organic salts. The terms “thermally treating,” “thermally treated,” “thermal treatment,” and similar terms, as used herein, in reference to a composition as discussed herein, refer to increasing the temperature of the composition by the application of heat. As an example, heat may be applied by electrical means (for example, a heating coil) and / or by radiation and / or by hot oil and / or by mechanical shearing. Note, the temperature at which the thermal treatment takes place, refers to the temperature of the “heat-applying” device, or, if the device contains an enclosed or semi-enclosed atmosphere, the temperature of the atmosphere within the device, such as, for example, the atmosphere within an oven or a tunnel (for example, the air temperature in an hot air oven or a hot air tunnel). The terms "comprising," "including," "having," and their derivatives, are not intended to exclude the presence of any additional component, step or procedure, regardless of whether the same is specifically disclosed. In order to avoid any doubt, all compositions claimed through use of the term "comprising" may include, for example, any additional additive, adjuvant, or compound, whether polymeric or otherwise, unless stated to the contrary. In contrast, the term "consisting essentially of" excludes from the scope of any succeeding recitation any other component, step or procedure, excepting those that are not essential to operability. The term "consisting of" excludes any component, step or procedure, not specifically delineated or listed. Listing of Some Composition Features A] A composition comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer, and b) at least one propylene-based polymer that has a MWD ≤ 5.0.B] The composition of A], wherein the at least one propylene-based polymer of component b has a MWD ≤ 4.9, or ≤ 4.8, or ≤ 4.7, or ≤ 4.6, or ≤ 4.5. C] The composition of A] or B], wherein the at least one propylene-based polymer of component b has a MWD ≥ 2.0, or ≥ 2.2, or ≥ 2.4, or ≥ 2.6, or ≥ 2.8, or ≥ 3.0, or ≥ 3.2, or ≥ 3.4, or ≥ 3.6, or ≥ 3.8, or ≥ 4.0. D] The composition of any one of A]-C] (A] through C]), wherein the at least one propylene-based polymer of component b has a Tm1≤ 160°C, or ≤ 158°C, or ≤ 156°C, or ≤ 154°C, or ≤ 152°C, or ≤ 150°C, or ≤ 149°C, or ≤ 148°C. Note, Tm1is in reference to the second heating curve in the DSC analysis, as described herein, and refers to the highest peak temperature if the second heating curve has two or more melting peaks. See, for example, Figure 1. E] The composition of any one of A]-D], wherein the at least one propylene-based polymer of component b has a Tm1≥ 130°C, or ≥ 132°C, or ≥ 134°C, or ≥ 136°C, or ≥ 138°C, or ≥ 139°C, or ≥ 140°C, or ≥ 141°C, or ≥ 142°C, or ≥ 143°C, or ≥ 144°C. Note, Tm2refers to the second highest peak temperature if the second heating curve has two or more melting peaks. See, for example, Figure 1. F] The composition of any one of A]-E], wherein the at least one propylene-based polymer of component b has a Tm2, and where (Tm1– 11.0°C) ≤ Tm2≤ (Tm1– 5.0°C). G] The composition of any one of A]-F], wherein the at least one propylene-based polymer of component b has a %Cryst. ≤ 75%, or ≤ 73%, or ≤ 71%, or ≤ 70%, or ≤ 69%, or ≤ 68%, or ≤ 67%, or ≤ 66%. H] The composition of any one of A]-G], wherein the at least one propylene-based polymer of component b has a %Cryst. ≥ 50%, or ≥ 52%, or ≥ 55%, or ≥ 56%, or ≥ 57%, or ≥ 58%, or ≥ 59%, or ≥ 60%, or ≥ 61%, or ≥ 62%, or ≥ 63%, or ≥ 64%. I] The composition of any one of A]-H], wherein the at least one propylene-based polymer of component b is a propylene homopolymer. J] The composition of any one of A]-H], wherein the at least one propylene-based polymer of component b is a propylene / ethylene interpolymer, and further a propylene- / ethylene copolymer. Further the propylene / ethylene interpolymer, or copolymer, is a random interpolymer or a random copolymer. K] The composition of any one of A]-H], wherein the at least one propylene-based polymer of component b is a propylene / alpha-olefin interpolymer, and further apropylene / olefin-olefin copolymer. Further the propylene / alpha-olefin interpolymer, or copolymer, is a random interpolymer or a random copolymer. L] The composition of K] above, wherein the alpha-olefin of the propylene / alpha-olefin interpolymer, and further copolymer, is a C4-C20 alpha-olefin, and further a C4-C10 alpha- olefin, and further a C4-C8 alpha-olefin. M] The composition of K] or L] above, wherein the alpha-olefin is selected from 1- butene, 1-pentene, 1-hexene or 1-octene, and further 1-butene or 1-octene, and further 1- octene. N] The composition of any one of A]-M] above, wherein the at least one propylene-based polymer (of component b) has a melt flow rate (MFR) ≥ 1.0, or ≥ 2.0, or ≥ 3.0, or ≥ 4.0, or ≥ 5.0, or ≥ 10, or ≥ 20, or ≥ 25, or ≥ 30, or ≥ 35, or ≥ 40, or ≥ 45, or ≥ 50, or ≥ 55 g / 10 min. O] The composition of any one of A]-N] above, wherein the at least one propylene-based polymer (of component b) has a melt flow rate (MFR) ≤ 200, or ≤ 150, or ≤ 100, or ≤ 90, or ≤ 80, or ≤ 75, or ≤ 70, or ≤ 65 g / 10 min. P] The composition of any one of A]-O] above, wherein the at least one propylene-based polymer (of component b) has a density ≥ 0.875 g / cc, or ≥ 0.880 g / cc, or ≥ 0.885 g / cc, or ≥ 0.890 g / cc, or ≥ 0.895 g / cc, or ≥ 0.900 g / cc (1 g / cc = 1 g / cm3). Q] The composition of any one of A]-P] above, wherein the at least one propylene-based polymer (of component b) has a density ≤ 0.935 g / cc, or ≤ 0.930 g / cc, or ≤ 0.925 g / cc, or ≤ 0.920 g / cc, or ≤ 0.915 g / cc, or ≤ 0.910 g / cc, or ≤ 0.905 g / cc. R] The composition of any one of A]-Q] above, wherein component b comprises two propylene-based polymers, and further two propylene homopolymers. S] The composition of any one of A]-Q] above, wherein component b comprises one propylene-based polymer, and further one propylene homopolymer. T] The composition of any one of A]-S] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a density ≥ 0.870 g / cc, or ≥ 0.871 g / cc, or ≥ 0.872 g / cc, or ≥ 0.873 g / cc, or ≥ 0.874 g / cc, or ≥ 0.875 g / cc, or ≥ 0.876 g / cc, or ≥ 0.877 g / cc, or ≥ 0.878 g / cc, or ≥ 0.879 g / cc, or ≥ 0.880 g / cc, or ≥ 0.881 g / cc, or ≥ 0.882 g / cc, or ≥ 0.883 g / cc, or ≥ 0.884 g / cc. U] The composition of any one of A]-T] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a density ≤ 0.910 g / cc, or ≤ 0.908 g / cc, or ≤ 0.906 g / cc, or ≤ 0.904 g / cc, or ≤ 0.902 g / cc, or ≤ 0.900 g / cc, or ≤ 0.898 g / cc, or ≤ 0.896 g / cc, or ≤ 0.894 g / cc, or ≤ 0.892 g / cc, or ≤ 0.890 g / cc, or ≤ 0.889 g / cc, or ≤ 0.888 g / cc, or ≤ 0.887 g / cc.V] The composition of any one of A]-U] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a SS-Tm ≤ 35°C, or ≤ 30°C, or ≤ 25°C, or ≤ 20°C, or ≤ 18°C, or ≤ 16°C, or ≤ 14°C, or ≤ 12°C, or ≤ 10°C, or ≤ 9°C, or ≤ 8°C, or ≤ 7°C, or ≤ 6°C. W] The composition of any one of A]-V] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a SS-Tm ≥ -20°C, or ≥ -18°C, or ≥ -16°C, or ≥ -14°C, or ≥ -12°C, or ≥ -10°C, or ≥ -8°C ≥ -6°C, or ≥ -4°C, or ≥ -2°C, or ≥ -1°C, or ≥ 0°C, or ≥ 1°C, or ≥ 2°C, or ≥ 3°C, or ≥ 4°C. X] The composition of any one of A]-W] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) is an at least one ethylene / alpha-olefin multi-block copolymer. Y] The composition of any one of A]-X] above, wherein the alpha-olefin of the at least one ethylene / alpha-olefin multi-block interpolymer, and further copolymer, is a C3-C20 alpha-olefin, and further a C3-C10 alpha-olefin, and further a C3-C8 alpha-olefin. Z] The composition of any one of A]-Y] above, wherein the alpha-olefin of the at least one ethylene / alpha-olefin multi-block interpolymer, and further copolymer, is selected from propylene, 1-butene, 1-pentene, 1-hexene or 1-octene, and further propylene, 1-butene or 1- octene, and further propylene or 1-octene, and further 1-octene. A2] The composition any one of A]-Z] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a melt index (MI or I2) ≥ 0.10, or ≥ 0.20, or ≥ 0.40, or ≥ 0.60, or ≥ 0.80, or ≥ 1.0, or ≥ 2.0 g / 10 min and / or ≤ 50, or ≤ 45, or ≤ 40, or ≤ 35, or ≤ 30, or ≤ 28, or ≤ 26, or ≤ 24, or ≤ 22, or ≤ 20, or ≤ 18, or ≤ 16, or ≤ 14, or ≤ 12, or ≤ 10, or ≤ 9.0, or ≤ 8.0, or ≤ 7.0, or ≤ 6.0, or ≤ 5.0 g / 10 min. B2] The composition of any one of A]-A2] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a molecular weight distribution (MWD = Mw / Mn) ≥ 1.5, or ≥ 1.6, or ≥ 1.7, or ≥ 1.8, or ≥ 1.9, or ≥ 2.0 and / or ≤ 4.0, or ≤ 3.5, or ≤ 3.0, or ≤ 2.8, or ≤ 2.6, or ≤ 2.4. C2] The composition of any one of A]-B2] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a number average molecular weight (Mn) ≥ 10,000, or ≥ 15,000, or ≥ 20,000, or ≥ 25,000, or ≥ 30,000, or ≥ 32,000, or ≥ 35,000 g / mol and / or ≤ 100,000, or ≤ 90,000, or ≤ 80,000, or ≤ 75,000, or ≤ 70,000, or ≤ 65,000, or ≤ 60,000 g / mol.D2] The composition of any one of A]-C2] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has melting point (Tm) ≥ 80°C, or ≥ 90°C, or ≥ 100°C, or ≥ 105°C, or ≥ 110°C, or ≥ 112°C, or ≥ 114°C, or ≥ 116°C, or ≥ 118°C and / or ≤ 150°C, or ≤ 145°C, or ≤ 140°C, or ≤ 135°C, or ≤ 130°C, or ≤ 128°C, or ≤ 126°C, or ≤ 124°C, or ≤ 123°C, or ≤ 122°C as determined by DSC. E2] The composition of any one of A]-D2] above, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a glass transition temperature (Tg) ≥ -75.0°C, or ≥ -72.0°C, or ≥ -70.0°C, or ≥ -68.0°C, or ≥ -66.0°C, or ≥ -65.0°C and / or ≤F2] The composition of any one of A]-E2] above, wherein component a comprises only one ethylene / alpha-olefin multi-block interpolymer, and further one ethylene / alpha-olefin multi-block copolymer. G2] The composition of any one of A]-E2] above, wherein component a comprises two ethylene / alpha-olefin multi-block interpolymers, and further two ethylene / alpha-olefin multi- block copolymers. A3] The composition of any one of A]-G2] above, wherein the first composition further comprises, as component c, at least one ethylene / alpha-olefin interpolymer, and further at least one ethylene / alpha-olefin copolymer. B3] The composition of A3] above, wherein the alpha-olefin of the at least one ethylene / alpha-olefin interpolymer, and further copolymer, is a C3-C20 alpha-olefin, and further a C3-C10 alpha-olefin, and further a C3-C8 alpha-olefin. C3] The composition of A3] or B3] above, wherein the alpha-olefin of the at least one ethylene / alpha-olefin interpolymer, and further copolymer, is selected from propylene, 1- butene, 1-pentene, 1-hexene or 1-octene, and further propylene, 1-butene or 1-octene, and further propylene or 1-octene, and further 1-octene. D3] The composition of any one of A3]-C3] above, wherein the at least one ethylene / alpha-olefin interpolymer (of component c) has a density ≥ 0.860 g / cc, or ≥ 0.862 g / cc, or ≥ 0.864 g / cc, or ≥ 0.866 g / cc, or ≥ 0.868 g / cc, or ≥ 0.869 g / cc, or ≥ 0.870 g / cc, and / or ≤ 0.900 g / cc, ≤ 0.898 g / cc, or ≤ 0.895 g / cc, or ≤ 0.892 g / cc, or ≤ 0.890 g / cc, or ≤ 0.888 g / cc, or ≤ 0.885 g / cc, or ≤ 0.882 g / cc, or ≤ 0.880 g / cc, or ≤ 0.878 g / cc, or ≤ 0.876 g / cc, or ≤ 0.874 g / cc, or ≤ 0.872 g / cc.E3] The composition any one of A3]-D3] above, wherein the at least one ethylene / alpha- olefin interpolymer (of component c) has a melt index (MI or I2) ≥ 0.10, or ≥ 0.20, or ≥ 0.30, or ≥ 0.40, or ≥ 0.50 g / 10 min and / or ≤ 50, or ≤ 45, or ≤ 40, or ≤ 35, or ≤ 30, or ≤ 28, or ≤ 26, or ≤ 24, or ≤ 22, or ≤ 20, or ≤ 18, or ≤ 16, or ≤ 14, or ≤ 12, or ≤ 10, or ≤ 9.0, or ≤ 8.0, or ≤ 6.0, or ≤ 5.0, or ≤ 4.0, or ≤ 2.0, or ≤ 1.0 g / 10 min. F3] The composition of any one of A3]-E3] above, wherein the at least one ethylene / alpha-olefin interpolymer (of component c) has a molecular weight distribution (MWD = Mw / Mn) ≥ 1.5, or ≥ 1.6, or ≥ 1.7, or ≥ 1.8, or ≥ 1.9, or ≥ 2.0 and / or ≤ 4.0, or ≤ 3.5, or ≤ 3.0, or ≤ 2.8, or ≤or ≤ 2.4. Theof any one of A3]-F3] above, wherein the at least one ethylene / alpha-olefin interpolymer (of component c) has melting point (Tm) ≥ 90°C, or ≥ 100°C, or ≥ 105°C, or ≥ 110°C, or ≥ 112°C, or ≥ 114°C, or ≥ 116°C, or ≥ 118°C and / or ≤ 140°C, or ≤ 135°C, or ≤ 130°C, or ≤ 128°C, or ≤ 126°C, or ≤ 124°C, or ≤ 123°C, as determined by DSC. H3] The composition of any one of A3]-G3] above, wherein the at least one ethylene / alpha-olefin interpolymer (of component c) is a multi-block ethylene / alpha-olefin interpolymer or a random ethylene / alpha-olefin. I3] The composition of any one of A3]-H3] above, wherein component c comprises only one ethylene / alpha-olefin interpolymer, and further one ethylene / alpha-olefin copolymer. J3] The composition of any one of A3]-H3] above, wherein component c comprises two ethylene / alpha-olefin interpolymers, and further two ethylene / alpha-olefin copolymers. K3] The composition of any one of A3]-J3] above, wherein the ratio of the I2 of component a to the I2 of component c is ≥ 2.0, or ≥ 4.0, or ≥ 6.0, or ≥ 8.0, or ≥ 9.0, or ≥ 10 g / 10 min and / or ≤ 20, or ≤ 18, or ≤ 16, or ≤ 14, or ≤ 12. L3] The composition of any one of A3]-K3] above, wherein the ratio of the density of component a, to the density of component c, is ≥ 0.900, or ≥ 0.920, or ≥ 0.950, or ≥ 0.980, or ≥ 1.00, or ≥ 0.101 and / or ≤ 1.20, or ≤ 1.15, or ≤ 1.12, or ≤ 1.10, or ≤ 1.08, or ≤ 1.05, or ≤ 1.02. M3] The composition of any one of A3]-L3] above, wherein the weight ratio of component a to component c is ≥ 1.2, or ≥ 1.5, or ≥ 1.8, or ≥ 2.0, or ≥ 2.2, or ≥ 2.4 and / or ≤ 4.0, or ≤ 3.8, or ≤ 3.5, or ≤ 3.2, or ≤ 3.0, or ≤ 2.8, or ≤ 2.6. N3] The composition of any one of A]-M3] above, wherein the first composition further comprises an antistatic agent.O3] The composition of any one of A]-N3] above, wherein the first composition further comprises a nucleating agent. P3] The composition of any one of A]-O3] above, wherein the weight ratio of component b to component a is ≥ 1.1, or ≥ 1.2, or ≥ 1.4, or ≥ 1.6, or ≥ 1.8 and / or ≤ 6.0, or ≤ 5.8, or ≤ 5.5, or ≤ 5.2, or ≤ 5.0, or ≤ 4.8, or ≤ 4.5, or ≤ 4.2, or ≤ 4.0, or ≤ 3.8, or ≤ 3.5, or ≤ 3.2, or ≤ 3.0 or ≤ 2.8, or ≤ 2.6, or ≤ 2.5. Q3] The composition of any one of A]-P3] above, wherein the ratio of the MFR of component b to the I2 of component a is ≥ 5.0, or ≥ 6.0, or ≥ 7.0, or ≥ 8.0, or ≥ 9.0, or ≥ 10, or ≥ 11, or ≥ 12 and / or ≤ 24, or ≤ 22, or ≤ 20, or ≤ 18, or ≤ 16, or ≤ 14. R3] The composition of any one of A]-Q3] above, wherein the ratio of the density of component b to the density of component a is ≥ 0.98, or ≥ 0.99, or ≥ 1.00, or ≥ 1.01 and / or ≤ 1.20, or ≤ 1.18, or ≤ 1.15, or ≤ 1.12, or ≤ 1.10, or ≤ 1.08, or ≤ 1.06, or ≤ 1.05, or ≤ 1.04. S3] The composition of any one of A]-R3] above, wherein the first composition comprises ≥ 10 wt%, or ≥ 12 wt%, or ≥ 15 wt%, or ≥ 18 wt%, or ≥ 20 wt%, or ≥ 22 wt%, or ≥ 25 wt% and / or ≤ 50 wt%, or ≤ 48 wt%, or ≤ 45 wt%, or ≤ 42 wt%, or ≤ 40 wt%, or ≤ 38 wt%, or ≤ 36 wt% of component a, based on the weight of the first composition. T3] The composition of any one of A]-S3] above, wherein the first composition comprises ≥ 50 wt%, or ≥ 52 wt%, or ≥ 54 wt%, or ≥ 56 wt%, or ≥ 58 wt%, or ≥ 60 wt%, or ≥ 62 wt% and / or ≤ 80 wt%, or ≤ 78 wt%, or ≤ 75 wt%, or ≤ 72 wt%, or ≤ 70 wt%, or ≤ 68 wt%, or ≤ 66 wt% of component b, based on the weight of the first composition. U3] The composition of any one of A]-T3] above, wherein the first composition comprises ≥ 15 wt%, or ≥ 18 wt%, or ≥ 20 wt%, or ≥ 22 wt%, or ≥ 24 wt%, or ≥ 26 wt%, or ≥ 28 wt% and / or ≤ 50 wt%, or ≤ 48 wt%, or ≤ 45 wt%, or ≤ 42 wt%, or ≤ 40 wt%, or ≤ 38 wt%, or ≤ 36 wt% of component a, based on the sum weight of components a and b. V3] The composition of any one of A3]-U3] above, wherein the first composition comprises ≥ 0.50 wt%, or ≥ 1.0 wt%, or ≥ 2.0 wt%, or ≥ 4.0 wt%, or ≥ 6.0 wt%, or ≥ 8.0 wt%, or ≥ 9.0 wt%, or ≥ 10 wt% and / or ≤ 30 wt%, or ≤ 28 wt%, or ≤ 25 wt%, or ≤ 22 wt%, or ≤ 20 wt%, or ≤ 18 wt%, or ≤ 16 wt%, or ≤ 14 wt%, or ≤ 12 wt% of component c, based on the weight of the first composition. W3] The composition of any one of A]-V3] above, wherein the first composition comprises ≥ 70 wt%, or ≥ 72 wt%, or ≥ 75 wt%, or ≥ 78 wt%, or ≥ 80 wt%, or ≥ 82 wt%, or ≥ 84 wt%, or ≥ 86 wt%, or ≥ 88 wt% and / or ≤ 100 wt%, or ≤ 99 wt% of the sum of components a and b, based on the weight of the first composition.X3] The composition of any one of A3]-W3] above, wherein the first composition comprises ≥ 80 wt%, or ≥ 82 wt%, or ≥ 85 wt%, or ≥ 88 wt%, or ≥ 90 wt%, or ≥ 92 wt%, or ≥ 94 wt%, or ≥ 96 wt% and / or ≤ 100 wt%, or ≤ 99 wt% of the sum of components a, b and c, based on the weight of the first composition. Y3] The composition of any one of A3]-X3] above, wherein the weight ratio of component b to component c is ≥ 1.0, or ≥ 1.5, or ≥ 2.0, or ≥ 2.5, or ≥ 3.0, or ≥ 4.0, or ≥ 4.5, or ≥ 5.0, or ≥ 5.2, or ≥ 5.4, or ≥ 5.6, or ≥ 5.8 and / or ≤ 10, or ≤ 9.5, or ≤ 9.0, or ≤ 8.5, or ≤ 8.0, or ≤ 7.5, or ≤ 7.0, or ≤ 6.8, or ≤ 6.6, or ≤ 6.4, or ≤ 6.2. Z3] The composition of any one of A]-G2], N3]-U3] or W3] above, wherein the first composition comprises components a and b as the only polymer components of the first composition. A4] The composition of any one of A3]-Y3] above, wherein the first composition comprises components a, b and c as the only polymer components of the first composition. B4] The composition of any one of A]-A4] above, wherein the composition further comprises at least one filler. C4] The composition of B4] above, wherein the at least one filler is selected from talc, nano clay, or a combination thereof, and further selected from talc. D4] The composition of B4] or C4] above, wherein the composition comprises ≥ 0.50 wt%, or 1.0 wt%, or ≥ 2.0 wt%, or ≥ 3.0 wt%, or ≥ 4.0 wt%, or ≥ 5.0 wt% and / or ≤ 40 wt%, or ≤ 35 wt%, or ≤ 30 wt%, or ≤ 25 wt%, or ≤ 20 wt%, or ≤ 15 wt%, or ≤ 10 wt%, or ≤ 8.0 wt%, or ≤ 6.0 wt% of the at least one filler, based on the weight of the composition. E4] The composition of any one of A]-D4] above, wherein the composition further comprises at least one additive. F4] The composition of E4] above, wherein the at least one additive is selected from antioxidants, colorants, processing aids (for example, zinc stearate), lubricants, or any combination thereof, and further selected from antioxidants. G4] The composition of E4] or F4] above, wherein the at least one additive is present in an amount ≥ 0.01 wt%, or ≥ 0.02 wt%, or ≥ 0.05 wt%, or ≥ 0.10 wt%, or ≥ 0.20 wt%, or ≥ 0.30 wt% and / or ≤ 10 wt%, or ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.8 wt%, or ≤ 0.6 wt%, based on the weight of the composition. H4] The composition of any one of A]-G4] above, wherein the composition further comprises a polymer, different from each of component a and component b, independently, in one or more features, such as monomer types, monomer distributions, monomer amounts, density, melt index (I2) or melt flow rate (MFR), Mn, MWD, or any combination thereof, andfurther in one or more features, such as monomer types, monomer distributions, monomer amounts, density, melt index (I2) or melt flow rate (MFR), or any combination thereof. I4] The composition of any one of A]-H4] above, wherein the composition comprises ≥ 40 wt%, or ≥ 42 wt%, or ≥ 45 wt%, or ≥ 48 wt%, or ≥ 50 wt%, or ≥ 52 wt%, or ≥ 54 wt%, or ≥ 56 wt%, or ≥ 58 wt%, and / or ≤ 90 wt%, or ≤ 88 wt%, or ≤ 85 wt%, or ≤ 82 wt%, or ≤ 80 wt%, ≤ 78 wt%, or ≤ 75 wt%, or ≤ 72 wt%, or ≤ 70 wt%, or ≤ 68 wt%, or ≤ 66 wt% of component b, based on the weight of the composition. J4] The composition of any one of A]-I4] above, wherein the composition comprises ≤ 50 wt%, or ≤ 48 wt%, or ≤ 45 wt%, or ≤ 42 wt%, or ≤ 40 wt%, or ≤ 38 wt%, or ≤ 36 wt% and / or ≥ 5.0 wt%, or ≥ 8.0 wt%, or ≥ 10 wt%, or ≥ 12 wt%, or ≥ 15 wt%, or ≥ 18 wt%, or ≥ 20 wt%, or ≥ 22 wt%, or ≥ 24 wt% of component a, based on the weight of the composition. K4] The composition of any one of A]-J4] above, wherein the composition comprises ≥ 60 wt%, or ≥ 65 wt%, ≥ 70 wt%, or ≥ 72 wt%, or ≥ 74 wt%, or ≥ 76 wt%, or ≥ 78 wt%, or ≥ 80 wt%, or ≥ 82 wt%, or ≥ 84 wt% and / or ≤ 100 wt%, or ≤ 99 wt% of the sum of components a and b, based on the weight of the composition. L4] The composition of any one of A3]-Y3] or A4]-K4] above, wherein the composition comprises ≤ 30 wt%, or ≤ 28 wt%, or ≤ 25 wt%, or ≤ 22 wt%, or ≤ 20 wt%, or ≤ 18 wt%, or ≤ 16 wt%, or ≤ 14 wt%, or ≤ 12 wt% and / or ≥ 0.5 wt%, or ≥ 1.0 wt%, or ≥ 2.0 wt%, or ≥ 4.0 wt%, or ≥ 6.0 wt%, or ≥ 8.0 wt%, or ≥ 9.0 wt%, or ≥ 10 wt% of component c, based on the weight of the composition. M4] The composition of any one of A3]-Y3] or A4]-L4], wherein the composition comprises ≥ 70 wt%, or ≥ 72 wt%, ≥ 75 wt%, or ≥ 78 wt%, or ≥ 80 wt%, or ≥ 82 wt%, or ≥ 84 wt%, or ≥ 86 wt%, ≥ 88 wt%, or ≥ 90 wt%, or ≥ 92 wt%, or ≥ 93 wt%, or ≥ 94 wt% and / or ≤ 100 wt%, or ≤ 99 wt%, or ≤ 98 wt%, or ≤ 97 wt%, or ≤ 96 wt%, or ≤ 95 wt% of the sum of components a, b and c, based on the weight of the composition. N4] The composition of any one of A]-M4] above, wherein the composition comprises ≥ 70 wt%, or ≥ 72 wt%, ≥ 75 wt%, or ≥ 78 wt%, or ≥ 80 wt%, or ≥ 82 wt%, or ≥ 84 wt%, or ≥ 86 wt%, or ≥ 88 wt%, or ≥ 90 wt%, or ≥ 92 wt%, or ≥ 93 wt%, or ≥ 94 wt% and / or ≤ 100 wt%, or ≤ 99 wt% of the first composition, based on the weight of the composition. O4] The composition of any one of A]-N4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of an amide compound (for example, a fatty amide), based on the weight of the composition; and further the composition does not comprise an amide compound.P4] The composition of any one of A]-O4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of a polyamide, based on the weight of the composition; and further the composition does not comprise a polyamide. Q4] The composition of any one of A]-P4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of an ethylene vinyl acetate (EVA) polymer, based on the weight of the composition; and further the composition does not comprise an ethylene vinyl acetate (EVA) polymer. R4] The composition of any one of A]-Q4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of a metal hydroxide (for example, magnesium hydroxide), based on the weight of the composition; and further the composition does not comprise a metal hydroxide. S4] The composition of any one of A]-R4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of a wax, based on the weight of the composition; and further the composition does not comprise a wax. T4] The composition of any one of A]-S4] above, wherein the composition comprises ≤ 5.0 wt%, or ≤ 2.0 wt%, or ≤ 1.0 wt%, or ≤ 0.5 wt%, or ≤ 0.2 wt%, or ≤ 0.1 wt%, or ≤ 0.05 wt% of a tackifier, based on the weight of the composition; and further the composition does not comprise a tackifier. U4] The composition of any one of A]-T4] above, wherein the composition has a MFR ≥ 5.0, or ≥ 7.0, or ≥ 10, or ≥ 12, or ≥ 15, or ≥ 18, or ≥ 20, or ≥ 22, or ≥ 24, or ≥ 26 g / 10 min and / or ≤ 100, or ≤ 80, or ≤ 60, or ≤ 50, or ≤ 48, or ≤ 45, or ≤ 42, or ≤ 40, or ≤ 38, or ≤ 36, or ≤ 34, or ≤ 32 g / 10 min. The composition of any one of A]-U4] above, wherein the composition has a Light Transmittance (3.2 mm thickness), at RT (23°C), ≥ 30%, or ≥ 35%, or ≥ 40%, or ≥ 45%, or ≥ 50%, or ≥ 55%, or ≥ 60% and / or ≤ 100%, or ≤ 95%. Light Transmittance is determined as described herein. W4] The composition of any one of A]-V4] above, wherein the composition has a Dart Ductility, at -30°C (6.6 m / s), ≥ 70%, or ≥ 75%, or ≥ 80%, or ≥ 85%, ≥ 90%, or ≥ 95%, or 100%. Dart Ductility is determined as described herein.X4] The composition of any one of A]-W4] above, wherein the composition has a Charpy Impact, at 23°C (RT) ≥ 400, or ≥ 410, or ≥ 420, or ≥ 430, or ≥ 440, or ≥ 450, or ≥ 460, or ≥ 470, or ≥ 480, or ≥ 490, or ≥ 500 J / m. Charpy Impact is determined as described herein. Y4] The composition of any one of A]-X4] above, wherein the composition has a Charpy Impact, at -30°C ≥ 40, or ≥ 41, or ≥ 42, or ≥ 43, or ≥ 44, or ≥ 45, or ≥ 46, or ≥ 47, or ≥ 48, or ≥ 49 J / m. Charpy Impact is determined as described herein. Z4] The composition of any one of A]-Y4] above, wherein the composition has a Flexural Modulus ≥ 80, or ≥ 85, or ≥ 90, or ≥ 95, or ≥ 100, or ≥ 105, or ≥ 110 ksi. Flexural Modulus is determined as described herein. A5] An article comprising at least one component formed from the composition of any one of A]-Z4] above. B5] The article of A5] above, wherein the article is an automotive part. C5] The article of A5] or B5] above, wherein the article is a bumper or an interior door panel, and further a bumper. D5] A method of forming an article, said method comprising mixing the composition of any one of A]-Z4] above. E5] A method of D5] above, further comprising thermally treating the composition. F5] The method of D5] or E5] above, wherein the article is an automotive part. G5] The method of any one of D5]-F5] above, wherein the article is a bumper or an interior door panel, and further a bumper. TEST METHODS Melt Flow Rate of a Propylene-based Polymer or Polymer Composition The melt flow rate (MFR) of a propylene-based polymer (see Table 1) or composition (see Table 2) is measured in accordance with ASTM D-1238, condition 230°C / 2.16 kg. The melt index (MI or I2) of an ethylene-based polymer or composition is measured in accordance with ASTM D-1238, condition 190°C / 2.16 kg. Density The density of a polymer is measured in accordance with ASTM D792, with a testing set-up without annealing (skip annealing step), using a balance and an isopropanol bath. Each sample is first compression molded at 190°C, 3000 lbs for six minutes, then at 25000 lbs for four minutes, and then cooled at 15°C per minute, until sample has cooled to 30°C.The density of the polymer sample is measured in an isopropanol bath (temperature- controlled to 23°C + / - 0.2°C) within one hour, after compression molding. The result is recorded in grams per cubic centimeter (g / cc = g / cm3). Differential Scanning Calorimetry (DSC) for Ethylene / Alpha-Olefin Multi-Block Interpolymers (POEs) and Determination of SS-Tm Differential Scanning Calorimetry (DSC) can be used to measure the melting, crystallization, and glass transition behavior of a polymer over a wide range of temperature. For example, the TA Instruments Discovery DSC, equipped with an RCS (refrigerated cooling system) and an autosampler, can be used to perform this analysis. During testing, a nitrogen purge gas flow of 50 ml / min is used. Each sample is melt pressed (preheated for 2 minutes, and pressed at a pressure of 10 MPa for 2 minutes) into a thin film, at about 190°C. The melted sample is then air-cooled to room temperature (about 23-25°C). A “3–10 mg,” 6 mm diameter specimen is extracted from the cooled polymer, weighed, placed in a light aluminum pan (about 50 mg), and crimped shut. Analysis is then performed to determine its thermal properties. The thermal behavior of the sample is determined by ramping the sample temperature up and down to create “heat flow versus temperature” profiles. First, the sample is rapidly heated to 180°C for POE, and held isothermally for 5 minutes, in order to remove its thermal history. Next, the sample is cooled to -90°C, at a 10°C / minute cooling rate, and held isothermally at -90°C for 5 minutes. The sample is then heated to 180°C for POE (this is the "second heat" ramp), at a 10°C / minute heating rate. The cooling and second heating curves are recorded. The glass transition temperature, Tg, is determined from the DSC second heating curve, where half the sample has gained the liquid heat capacity as described in Bernhard Wunderlich, The Basis of Thermal Analysis, in Thermal Characterization of Polymeric Materials, 92, 278–279 (Edith A. Turi ed., 2d ed.1997). Baselines are drawn from below and above the glass transition region and extrapolated through the Tgregion. The temperature at which the sample heat capacity is half-way between these baselines is the Tg. The melting point, Tm, of the polymer sample is determined as the temperature corresponding to the maximum heat flow (endotherm) in the second DSC heating curve. The crystallization temperature of the polymer sample is determined as the temperature corresponding to the maximum exotherm in the DSC cooling curve (or the temperature (peak temperature) of thecrystallization peak, corresponding to the lowest dip of the exotherm peak). The percent crystallinity is calculated by dividing the heat of fusion (Hf), determined from the second heating curve, by a theoretical heat of fusion, for example, 292 J / g for ethylene-based polymer samples, and multiplying this quantity by 100 (for example, for ethylene-based polymer samples, % cryst. = (Hf / 292 J / g) x 100). The cumulative crystallinity at a specific temperature (Ts) is determined by first calculating the heat of fusion (Hs) for the sample between Tsand 140°C . In this case, the second heating curve is baseline corrected by drawing a linear baseline between the heat flow at -50°C and 140°C. The Hs can then be calculated from the integrated base-line-corrected heat flow curved between two temperature points (i.e., Tsand 140°C ). The cumulative crystallinity at a specific temperature (Ts) is then calculated by dividing Hs by a theoretical heat of fusion of 292 J / g for PE, and multiplying this quantity by 100 (for example, % cumulative crystallinity (at Ts) = (Hs / 292 J / g) x 100 (for PE)). The change in crystallinity of the POE between RT and 60 °C is then calculated as the difference between the cumulative crystallinity at Ts= 23°C and the cumulative crystallinity at Ts= 60°C. The soft segment melting temperature (SS-Tm) is determined from the DSC second heating curve. For example, an ethylene / octene multi-block copolymer typically has two melting peaks, one melting peak associated with the soft segments and one melting point associated with the hard segments. The SS-Tm is associated with the lower temperature peak for the soft segments. For some block copolymers, the peak associated with the melting of the soft segments is a small hump (or bump) over the baseline, making it difficult to assign a peak maximum. This difficulty can be overcome by converting a normal DSC profile into a weighted DSC profile using the following method. In DSC, the heat flow depends on the amount of the material melting at a certain temperature, as well as on the temperature-dependent specific heat capacity. The temperature dependence of the specific heat capacity, in the melting regime, of linear low-density polyethylene leads to an increase in the heat of fusion with decreasing comonomer content. That is, the heat of fusion values get progressively lower as the crystallinity is reduced with increasing comonomer content. See Wild, L., Chang, S., Shankernarayanan, M J., Improved Method for Compositional Analysis of Polyolefins by DSC, Polym. Prep 1990; 31: 270-1, which is incorporated by reference herein, in its entirety. For a given point in the DSC curve (defined by its heat flow in watts per gram (W / g) and temperature in degrees Celsius), by taking the ratio of “the temperature-dependent heat of fusion (ΔΗ (T))” to “the heat of fusionexpected for a linear copolymer,” the DSC curve can be converted into a weight-dependent distribution curve, as discussed below. For a DSC analysis of a composition, the second heating curve is baseline corrected, for example, by drawing a linear baseline between the heat flow at -50°C and 135°C. The temperature-dependent heat of fusion curve (or “Enthalpy (J / g) versus Temperature (°C)”) can then be generated from the summation of the integrated heat flow between two consecutive data points (from the “Heat Flow (W / g) versus Time (min)” profile). This summation is represented overall by a cumulative enthalpy curve (“Enthalpy (J / g) versus Temperature (°C)” profile). Note, Joule (J) = Watt (W) * sec, and each temperature is determined from the respective time point and the temperature ramp. The expected relationship between the heat of fusion for linear ethylene / octene copolymers, at a given temperature, is shown by the “heat of fusion versus melting temperature” curve. Using random ethylene / octene copolymers, one can obtain the following relationship (calibration equation) for the expected heat of fusion of linear copolymers,ΔHlinear copolymer, and melting temperature, Tm (in °C): ∆^^^^^^^ ^^^^^^^^^^^⁄ ^ ^ =0.0072 ∗ ^^^ + 0.3138 ∗ ^^ + 8.9767. See also Figure 2 (“Melt Enthalpy (J / g) versusMelting (°C)” for linear copolymers). For each integrated data point from the cumulative enthalpy curve (“Enthalpy (J / g) versus Temperature (°C)” profile), at a given temperature (T), the ratio of ‘the enthalpy from the cumulative enthalpy curve” to the expected heat of fusion for linear copolymers at that temperature,” yields a fractional weight that can be assigned to the respective data point. Thus, DSC Wt. Fraction = [Cumulative Enthalpy (at T) / Melt Enthalpy (at T) from the calibration equation]. Using this ratio, a plot of the DSC Wt. Fraction versus Temperature (°C) can be generated, and the area under this curve (or ATotal) can be calculated. A normalized DSC Wt. Fraction, at each T, can be calculated by dividing the value for the DSC Wt. Fraction by ATotal (or DSC Wt. Fraction / ATotal). Thus, a normalized DSC Wt. Fraction versus Temperature (°C) curve can be generated. The soft segment Tm (SS-Tm) is assigned as temperature at the location of the maximum in the normalized DSC Wt. Fraction versus Temperature (°C) curve. The method is applicable to copolymers containing polymerized ethylene and polymerized octene, but can be adapted to other polymers as well. Note, the above DSC method can be used to determine the Tm, Tgand Tcof ethylene / alpha-olefin interpolymers and copolymers.Differential Scanning Calorimetry (DSC) – PP-Based Polymers Differential Scanning Calorimetry (DSC), as discussed below, is used to measure Tm, Tc, Tgand crystallinity in propylene-based (PP) samples. Each sample (0.5 g) is compression molded into a film, at 25000 psi, 190°C, for 10–15 seconds. About 5 to 8 mg of film sample is weighed and placed in a DSC pan. The lid is crimped on the pan to ensure a closed atmosphere. The sample pan is placed in a DSC cell, and then heated, at a rate of approximately 10ºC / min, to a temperature of 230ºC for PP. The sample is kept at this temperature for three minutes. Then, the sample is cooled at a rate of 10ºC / min to -80°C for PP, and kept isothermally at that temperature for three minutes. The sample is next heated at a rate of 10ºC / min, until complete melting (second heat). Unless otherwise stated, melting point (Tm) and the glass transition temperature (Tg) of each polymer sample are determined from the second heating curve, and the crystallization temperature (Tc) is determined from the first cooling curve. The Tgand the respective peak temperature(s) for the Tm(s) are noted. The percent crystallinity can be calculated by dividing the heat of fusion (Hf), determined from the second heating curve, by a theoretical heat of fusion of 165 J / g for PP, and multiplying this quantity by 100 (for example, % cryst. = ((Hf / 165 J / g) x 100 (for PP)). Notched Charpy, J / m (-30°C, and 23°C (RT)) This test was based on ISO 179 for Determination of Charpy Impact Properties, which calculates the impact energy absorbed by a specimen after windage and friction loss has automatically been determined. Ten test samples were die cut from an ISO injected molded bar with a thickness of 4 mm (see Experimental section). Samples were 80 mm in length and 10 mm in width. Each test sample was notched along the length of the sample, at the center, in the thickness direction, using an automated notcher. Each sample was conditioned for at least 40 hours, at 23+ / -2°C and 50+ / -10 % relative humidity. For those test samples that were tested at non-ambient temperatures (that is, -30°C), each test sample was further conditioned at the test temperature for a minimum of one hour. For each test temperature, ten test samples (per composition) were tested, and an averaged Charpy value was reported. Flexural Modulus Flexural modulus was measured according to ISO 178, using the injection molded ISO tensile bars (see Experimental section), and an INSTRON testing machine. The test speed was 2 mm / min. Five test samples (per composition) were measured, and the average reported. The tangent modulus of elasticity described in ISO 178 was reported as the flexural modulus of the composition.Multiaxial Dart Impact (Dart Ductility) Multiaxial dart testing on each composition was performed using an INSTRON CEAST 9350 Drop Tower Impact System (DYNATUP), according to ASTM D3763. Testing was run at 6.6 m / s, which translates to14.8 miles per hour, an automotive industry standard rate. The sample temperature was carefully controlled. Samples (TPO discs, see Experimental section) were placed, for a minimum of four hours, in a freezer unit that controlled the test temperature to + / - 2°C. Impact testing was run in a temperature controlled chamber that controlled the test temperature to + / - 2°C. In the current case, test samples were tested at -30°C. A sample (disk with 3.2 mm thickness) may break in a ductile, semi-brittle or brittle mode. The mode was determined by visually examining the impacted disks. Note the impact on a disc produces a hole in the center of the disc. The semi-brittle (C) sample had, in addition to the center hole, a crack but no missing piece (score 0.5). The brittle (B) sample had a missing piece from the disk (score 0), which typically occurs in the center area of the disc, thus eliminating the delineation of the center hole. The ductile (D) sample had just a hole in the center of the disk (score 1). The Ductile % for each composition was calculated as the total score for each batch of testing divided by the total number (at least 5) of the samples in the batch, and multiplied by 100. Light Transmittance% The light transmittance of each composition was measured from an injection molded disk with 3.2 mm thickness (TPO discs, see Experimental section), according to ASTM D1003, using the Haze-Gard Plus (BYK Instruments). This method measured the luminous transmittance from the ratio of the luminous flux transmitted by a body to the flux incident upon the body. The reported value is the percentage (%) of the flux (light) transmitted. For the transmittance at room temperature (23°C), the measurements were made without any prior sample treatment. Per composition, the obtained light transmittance at each temperature was an average of at least three (typically 3 to 5) independent measurements. Gel Permeation Chromatography for Propylene-based Polymers The chromatographic system consists of a PolymerChar GPC-IR (Valencia, Spain) high temperature GPC chromatograph, equipped with an internal IR5 infra-red detector (IR5). The autosampler oven compartment is set at 160º Celsius, and the column compart- ment is set at 140º Celsius. The columns are three AGILENT “Mixed B” 30 cm, 10-micronlinear mixed-bed columns. The chromatographic solvent is 1,2,4-trichlorobenzene, which contained 200 ppm of butylated hydroxytoluene (BHT). The solvent source is nitrogen sparged. The injection volume is 200 microliters, and the flow rate is 1.0 milliliters / minute. Calibration of the GPC column set is performed with 21 narrow molecular weight distribution polystyrene (PS) standards, with molecular weights ranging from 580 to 8,400,000, and which are arranged in 6 “cocktail” mixtures, with at least a decade of separation between individual molecular weights. The standards are purchased from Agilent Technologies. The polystyrene standards are prepared at 0.025 grams in 50 milliliters of solvent, for molecular weights equal to, or greater than, 1,000,000, and at 0.05 grams in 50 milliliters of solvent, for molecular weights less than 1,000,000. The polystyrene standards are pre-dissolved at 80° Celsius, with gentle agitation, for 30 minutes then cooled, and the room temperature solution is transferred cooled into the autosampler dissolution oven at 160 °C for 30 minutes. The polystyrene standard peak molecular weights are converted to polypropylene (PP) molecular weights using Equation 1 (as described in ASTM D6474): "#^ & = $++ × .+ / $)*+ / $% '' ($)* , "#^$% (.++, + ($)*++, × "#^$%&'0 (EQ 1)where M mL / g, PPis 0.725. A third order polynomial is used to fit the respective polypropylene equivalent calibration points. The total plate count of the GPC column set is performed with decane, which was introduced into a blank sample via a micropump controlled with the PolymerChar GPC-IR system. The plate count for the chromatographic system should be greater than 18,000 for the three Agilent “Mixed B” 30 cm, 10-micro linear mixed-bed columns. Samples are prepared in a semi-automatic manner with the PolymerChar “Instrument Control” Software, wherein the samples are weight-targeted at 2 mg / ml, and the solvent (contained 200 ppm BHT) was added to a pre nitrogen-sparged, septa-capped vial, via the PolymerChar high temperature autosampler. The samples are dissolved for 3 hours at 160º Celsius under “low speed” shaking. The calculations of Mn(GPC), Mw(GPC), and Mz(GPC)are based on GPC results using the internal IR5 detector (measurement channel) of the PolymerChar GPC-IR chromatograph according to Equations 2-4, the PolymerChar GPCOne™ software, the baseline-subtracted IR chromatogram at each equally-spaced data collection point (i), and the polypropylene equivalent molecular weight obtained from the narrow standard calibration curve for the point (i) from Equation 1.1^234^ = ∑8& 6786(EQ 2), ∑89 78B :;<=>;?<;>=@A@ C83),4).Inwas introduced into each sample, via a micropump controlled with the PolymerChar GPC-IR system. This flowrate marker (FM) is used to linearly correct the pump flowrate (Flowrate(nominal)) for each sample, by RV alignment of the respective decane peak within the sample (RV(FM Sample)), to that of the decane peak within the narrow standards calibration (RV(FM Calibrated)). Any changes in the time of the decane marker peak are then assumed to be related to a linear-shift in flowrate (Flowrate(effective)) for the entire run. After calibrating the system, based on a flow marker peak, the effective flowrate (with respect to the narrow standards calibration) is calculated from Equation 5: Processing of the flow marker peak was done via the PolymerChar GPCOne™ software. Acceptable flowrate correction is such that the effective flowrate should be within + / -0.5% of the nominal flowrate. Flowrate(effective) = Flowrate(nominal) * (RV(FM Calibrated) / RV(FM Sample)) (EQ5). Gel Permeation Chromatography (GPC) for Ethylene-based Polymers The chromatographic system consists of a PolymerChar GPC-IR (Valencia, Spain) high temperature GPC chromatograph, equipped with an internal IR5 infra-red detector (IR5). The autosampler oven compartment is set at 160º Celsius, and the column compart- ment is set at 150º Celsius. The columns are four AGILENT “Mixed A” 30 cm, 20-micron linear mixed-bed columns. The chromatographic solvent is 1,2,4-trichlorobenzene, which contained 200 ppm of butylated hydroxytoluene (BHT). The solvent source is nitrogen sparged. The injection volume is 200 microliters, and the flow rate is 1.0 milliliters / minute. Calibration of the GPC column set is performed with 21 narrow molecular weight distribution polystyrene standards, with molecular weights ranging from 580 to 8,400,000, and which are arranged in 6 “cocktail” mixtures, with at least a decade of separation between individual molecular weights. The standards are purchased from Agilent Technologies. Thepolystyrene standards are prepared at 0.025 grams in 50 milliliters of solvent, for molecular weights equal to, or greater than, 1,000,000, and at 0.05 grams in 50 milliliters of solvent, for molecular weights less than 1,000,000. The polystyrene standards are pre-dissolved at 80° Celsius, with gentle agitation, for 30 minutes then cooled, and the room temperature solution is transferred cooled into the autosampler dissolution oven at 160 °C for 30 minutes. The polystyrene standard peak molecular weights are converted to polyethylene molecular weights using Equation 6 (as described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)): &^^^^^GH^^^^^ = I × J&^^^^KG^^^^^LM(EQ 6)where M is the to 1.0. A fifth orderpolynomial is used to points. The total plate count of the GPC column set is performed with decane which was introduced into a blank sample via a micropump controlled with the PolymerChar GPC-IR system. The plate count for the chromatographic system should be greater than 18,000 for the four Agilent “Mixed A” 30 cm, 20-micro linear mixed-bed columns. Samples are prepared in a semi-automatic manner with the PolymerChar “Instrument Control” Software, wherein the samples are weight-targeted at 2 mg / ml, and the solvent (contained 200 ppm BHT) was added to a pre nitrogen-sparged, septa-capped vial, via the PolymerChar high temperature autosampler. The samples are dissolved for 3 hours at 160º Celsius under “low speed” shaking. The calculations of Mn(GPC), Mw(GPC), and Mz(GPC) are based on GPC results using the internal IR5 detector (measurement channel) of the PolymerChar GPC-IR chromatograph according to Equations 7-9, the PolymerChar GPCOne™ software, the baseline-subtracted IR chromatogram at each equally-spaced data collection point (i), and the polyethylene equivalent molecular weight obtained from the narrow standard calibration curve for the point (i) from Equation 6. 1^234^ = ∑8& 678(EQ 7), 8),9).In order to monitor the deviations over time, a flowrate marker (decane) was introduced into each sample, via a micropump controlled with the PolymerChar GPC-IR system. This flowrate marker (FM) is used to linearly correct the pump flowrate (Flowrate(nominal)) for each sample, by RV alignment of the respective decane peak within the sample (RV(FM Sample)), to that of the decane peak within the narrow standards calibration (RV(FM Calibrated)). Any changes in the time of the decane marker peak are then assumed to be related to a linear-shift in flowrate (Flowrate(effective)) for the entire run. After calibrating the system, based on a flow marker peak, the effective flowrate (with respect to the narrow standards calibration) is calculated from Equation 10. Processing of the flow marker peak was done via the PolymerChar GPCOne™ software. Acceptable flowrate correction is such that the effective flowrate should be within + / -0.5% of the nominal flowrate. Flowrate(effective) = Flowrate(nominal) * (RV(FM Calibrated) / RV(FM Sample)) (EQ 10).EXPERIMENTAL Polymers and additives are shown in Table 1 below. TPO compositions, and properties of the same, are shown in Table 2. Table 1: Polymers and Additives Product Name Chemical Description Polypropylene homopolymer, MFR = 60 g / 10 min, Density = 0.90 g / cc, METOCENE HM648T Tm1 = 146.7°C, Tm2 = 136.3°C, Hf = 107.7 J / g, %Cryst. = 65.3%, available from LyondellBasell. INFUSE 9530 Olefin Block Ethylene / octene multi-block copolymer, Copolymer Density = 0.887 g / cc, MI (or I2) = 5.0 g / 10 min, (SS-Tm) = 6°C, available from The Dow Chemical Company INFUSE 9077 Olefin Block Density = 0.870 g / cc, MI = 0.5 g / 10 min, Copolymer Elastomer available from the Dow Chemical Company Polypropylene homopolymer, MFR = 11 g / 10 min, Density = 0.90-0.92 g / cc BRASKEM D115A (average 0.91 g / cc), Tm1= 163.0°C, Hf= 118.4 J / g, %Cryst. = 71.8%, available from Braskem. BRASKEM F1000HC Polypropylene homopolymer, MFR = 115 g / 10 min, Density = 0.90-0.92 g / cc (average 0.91 g / cc), Tm1 = 165.8°C, Hf = 127.2 J / g, %Cryst. = 77.1%, available from Braskem. JETFINE 3CW Ultra-fine Talc, available from IMERYS North America Performance Additives IRGANOX B225 Antioxidant available from BASF Table 2: TPO Compositions and Properties hPP / INFUSE 9530 / PP HM648T / INFUSE Composition hPP / INFUSE 9530 PP HM648T / 9530 INFUSE 9530 / INFUSE Comp. A Inv.1 9077 / JETFINE 9077 / JETFINE Comp. B Inv.2 INFUSE 9530 35 35 25 25 INFUSE 9077 10 10hPP / INFUSE PP PP PP HM648T / hPP / INFUSE HM648T / hPP / INFUSE HM648T / hPP / INFUSE Composition 9530 / INFUSE 9077 / Jetfine 9530 / INFUSE 9530 / INFUSE 9530 / INFUSE Inv.3 9077 / Jetfine 9077 / Jetfine 9077 / Jetfine Inv.4 Inv.5 Inv.6 INFUSE 9530 2525 25 25INFUSE 9077 10 10 10 10 PP METOCENE HM648T 50 25 23 BRASKEM F1000HC 37,8 7,8 22,8 22,8 BRASKEM D115A 24,8 4,8 14,8 14,8 IRGANOX B225 0,4 0,4 0,4 0,4 JETFINE 3CW 2 2 2 4 Properties MFR (g / 10 min) 22 28 25 24 Flex Mod (ksi) 176.4 126.1 153.1 157.7 Light Transmittance (%) 41 44 45 35 @ 23°C (3.2 mm thick disc) Charpy RT (23°C) (J / m) 280.7 257.4 287.7 280.0 Charpy -30°C (J / m) 29.5 29.9 27.4 23.1 Dart Ductility 100,0 100,0 100,0 100,0 (%, 6.6 m / s, -30°C) Compounding For each composition (TPO), the components were mixed in a twin-screw extruder; that is a COPERION ZSK-26 mm twin screw extruder, equipped with a water bath and strand cutter. The extruder configuration and the temperature profile, for each composition, is shown in Table 3. All the components, except for the talc, were dry blended in a plastic bag, and then fed to the main feed throat via a loss-in-weight feeder. The talc was fed to the main feed throat via a separate powder feeder. Table 3: Compounding Conditions ZSK-26 Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Extruder Set points 130°C 180°C 200°C 200°C 200°C 200°C 200°C 200°C 300 RPM Injection Molding - ISO Tensile Bars ISO tensile bars were injection molded on a TOYO injection molding machine. Molding conditions were optimized to ensure minimal defects in the molded parts, via various control experiments. The key injection molding settings are tabulated in Table 4. The ISO tensile bars were used to determine Flexural Modulus and Charpy Impact Properties.Table 4: Injection Molding Conditions for ISO Tensile Bars Set Temperature (degree C) Dosage Volume Inj.-Hold Switch Over Zone 1 Zone 2 Zone 3 Zone 4 (mm) Position (mm) 226 226 226 226 64.5 15 Setting Injection Hold Back Plasticizing Pressure Pressure S Injection Speed Pressure peed / Screw (Bar) (Bar) Spd (mm / s) (Bar) (rpm) 2000 320 50 75 40 Injection Molding – TPO Discs TPO discs (4 inch diameter) with thickness of 1 / 8 inch (3.2 mm) were injection molded on a TOYO injection molding machine. Molding conditions were optimized to ensure minimal defects in the molded parts, via various control experiments. The key injection molding settings are tabulated in Table 5. The discs were used for the Light Transmittance (%) and the Dart Ductility. Table 5: Injection Molding Settings Set Temperature (degree C)Dosage VolumeInj.-Hold Switch Zone 1 Zone 2 Zone 3 Zone 4(mm)Over Position (mm)226 226 226 226 64.5 15 Setting Hold Back Plasticizing Injection Pressure Pressure Speed / Screw Spd Injection Speed Pressure (Bar) (Bar) (Bar) (rpm) (mm / s) 2000 450 50 90 60 Summary of Results As seen in Table 2, the inventive compositions had good light transmittance, good impact performance (Charpy at RT and -30°C; Dart Ductility) and good stiffness (Flexural Modulus). Each inventive composition had improved light transmittance as compared to its corresponding comparative composition (see Inv.1 vs. Comp. A, and Inv.2 vs. Comp. B).

Claims

CLAIMS 1. A composition comprising a first composition that comprises at least the following components a and b: a) at least one ethylene / alpha-olefin multi-block interpolymer, and b) at least one propylene-based polymer that has a MWD ≤ 5.

0.

2. The composition of claim 1, wherein the at least one propylene-based polymer of component b has a MWD ≥ 2.

0.

3. The composition of claim 1 or claim 2, wherein the at least one propylene-based polymer of component b has a Tm1≤ 160°C.

4. The composition of any one of claims 1-3, wherein the at least one propylene-based polymer of component b has a Tm2, and where (Tm1– 11.0°C) ≤ Tm2≤ (Tm1– 5.0°C).

5. The composition of any one of claims 1-4, wherein the at least one propylene-based polymer of component b is a propylene homopolymer.

6. The composition of any one of claims 1-5, wherein component b comprises one propylene-based polymer.

7. The composition of any one of claims 1-6, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a density from 0.870 g / cc to 0.910 g / cc.

8. The composition of any one of claims 1-7, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a SS-Tm from -20°C to 35°C.

9. The composition of any one of claims 1-8, wherein the at least one ethylene / alpha- olefin multi-block interpolymer (of component a) has a melt index (MI or I2) from 0.10 to 50 g / 10 min.

10. The composition of any one of claims 1-9, wherein the first composition further comprises, as component c, at least one ethylene / alpha-olefin interpolymer.

11. The composition of claim 10, wherein the weight ratio of component a to component c is from 1.2 to 4.

0.

12. The composition of any one of claims 1-11, wherein the weight ratio of component b to component a is from 1.1 to 6.

0.

13. The composition of any one of claims 1-12, wherein the composition further comprises at least one filler.

14. The composition of any one of claims 1-13, wherein the composition has a MFR from 5.0 to 100 g / 10 min.

15. The composition of any one of claims 1-14, wherein the composition has a LightTransmittance (3.2 mm thickness), at RT (23°C), from 30% to 100%.

16. The composition of any one of claims 1-15, wherein the composition has a Dart Ductility, at -30°C (6.6 m / s), ≥ 70%.

17. The composition of any one of claims 1-16, wherein the composition has a Charpy Impact, at 23°C (RT) ≥ 400 J / m.

18. The composition of any one of claims 1-17, wherein the composition has a Flexural Modulus ≥ 80 ksi.

19. An article comprising at least one component formed from the composition of any one of claims 1-18.

20. A method of forming an article, said method comprising mixing the composition of any one of claims 1-18.

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