102 results about "Plastomer" patented technology

The invention relates to the technical field of computers, and discloses a rock creep model construction method and device and a rock failure mode determination method. The method comprises the steps of obtaining a data set; samples in the data set comprise input data and output data, the input data comprise creep load holding time, sample rock stress data, initial macroscopic damage data, initial microscopic damage data, long-term strength and a creep starting threshold value, and the output data is a strain true value; fitting the initial rock creep model by using the data set to obtain a final rock creep model; wherein the initial rock creep model comprises at least one of a damaged elastomer strain item, a damaged viscoelastomer strain item and a damaged viscoplastic body strain item; each strain item comprises a macro-micro nonlinear coupling damage item, and the macro-micro nonlinear coupling damage item is generated based on the initial micro damage data and the initial macro damage data. The model constructed by the method can truly reflect the nonlinear mechanical response of the rock mass under the combined action of the multi-scale initial defects.

A semi-metallocene catalyst and a synthetic method and application thereof belong to the field of chemical engineering. The invention discloses a novel semi-metallocene catalyst which is stable in structure and excellent in heat resistance, and in the presence of a cocatalyst alkoxy aluminum or alkyl aluminum or organic boride, the heat resistance of the semi-metallocene catalyst is greatly improved. Ethylene homopolymerization, propylene homopolymerization, ethylene and alpha-olefin copolymerization, propylene and alpha-olefin copolymerization, ethylene and polar olefin monomer copolymerization, propylene and polar olefin monomer copolymerization or non-polar olefin monomer and polar olefin monomer multi-component copolymerization are efficiently catalyzed at a high polymerization temperature to efficiently prepare a high-end copolymerization olefin material. And synthesizing high-end propenyl elastomers and plastomers, vinyl elastomers and plastomers, styryl copolymers and the like. The method is simple in preparation process, safe, low in cost, convenient to operate, low in equipment requirement, small in energy consumption and small in environmental pollution.

A system for forming a blister package includes a thermoformable film and a lidding film. The thermoformable film has a thermoformable film exterior layer and a thermoformable film interior layer. The thermoformable film exterior layer includes at least 50% by weight polypropylene. The thermoformable film interior layer includes at least 50% by weight polypropylene and (a) a tackifier and / or (b) a cyclic olefin copolymer. The lidding film includes a lidding film exterior layer, a seal layer, and a lidding film interior layer between the lidding film exterior layer and the seal layer. The lidding film exterior layer includes at least 50% polypropylene. The lidding film interior layer includes at least 50% polypropylene and a tackifier. The seal layer includes a polyolefin plastomer.

The present invention relates to a polymer composition comprising the following components: A) 5 to 35 wt.-% based on the overall weight of the polymer composition of a recycled polyolefin fabric substrate; wherein said fabric substrate is coated with a polyolefin composition comprising the following components: a1) an ethylene based plastomer with a density determined according to ISO 1183-1 in the range of 0.857 to 0.915 g / cm3 and a MFR2 (190° C., 2.16 kg) determined according to ISO 1133 in the range of 0.5 to 30 g / 10 min; and a2) a propylene based plastomer with a density determined according to ISO 1183-1 in the range of 0.850 to 0.910 g / cm3 and a MFR2 (230° C., 2.16 kg) determined according to ISO 1133 in the range of 0.01 to 30 g / 10 min; B) 65 to 95 wt.-% based on the overall weight of the polymer composition of a homopolypropylene or a recycled polymer blend comprising b1) polypropylene and b2) polyethylene, wherein the weight ratio of b1) to b2) is from 3:7 to 12:1; with the proviso that components A) and B) add up to 100 wt.-%. Furthermore, the present invention relates to use of component A) for increasing the Charpy Notched Impact Strength of component B) and to an article comprising the polymer composition according to the present invention.

To provide a laminate having a polyolefin layer, a vapor-deposited film, and an adhesive layer, the laminate exhibiting excellent gas barrier performance and excellent adhesion between the adhesive layer and an adjacent layer thereto.SOLUTION: A laminate comprises, in this order in the lamination direction, a first polyolefin layer, an adhesive layer containing a polyolefin plastomer and an acid group-containing ethylene-based polymer, and a second polyolefin layer, wherein a vapor-deposited film is further provided between the first polyolefin layer and the adhesive layer and / or between the adhesive layer and the second polyolefin layer.SELECTED DRAWING: Figure 1

The invention relates to the technical field of plastomer modified asphalt preparation, in particular to a preparation method and system of a plastomer modified asphalt waterproof coiled material, and the preparation method comprises the following steps: S1, determining the real-time dosage of a pre-compatible base material; s2, adding the pre-compatible base material, the functional additive and the inorganic filler in stages according to the determined adding amount, and treating by adopting a gradient heating and shearing blending process; s3, feeding the blended modified asphalt into a stirring kettle to complete homogenization treatment in a heat preservation state, and entering a tire base pretreatment process; s4, establishing an infiltration adaptation reference, and entering a dip coating process; s5, preparing a coiled material green body; and S6, the coiled material blank is fed into a three-section independent temperature control cooling roller set to be cooled and shaped, the internal stress of the coiled material is monitored on line, and closed-loop regulation and control are conducted. According to the method, the technical problems of large fluctuation of performance and poor batch consistency of a traditional process are solved, the fluctuation range of core performance between batches of finished products is reduced, and the production stability and the product quality controllability are greatly improved.

A composition suitable for automotive application obtainable by blending at least components (A), (B), (C), (D), (E) and (F): (A) from 5.0 to 40.0 wt.-%, preferably from 7.0 to 37.5 wt.-%, more preferably from 8.0 to 35.0 wt.-% of a first heterophasic propylene copolymer; (B) from 10.0 to 20.0 wt.-%, preferably from 12.5 to 19.0 wt.-%, more preferably from 14.0 to 18.0 wt.-% of a second heterophasic propylene copolymer; (C) from 15.0 wt.-% to 45.0 wt.-%, preferably from 17.5 to 42.5 wt.-%, more preferably from 20.0 to 40.0 wt.-% of a mixed-plastics polypropylene blend; (D) from 2.5 wt.-% to 15.0 wt.-%, preferably from 3.5 to 12.5 wt.-%, more preferably from 4.0 to 11.0 wt.-% of a mixed-plastics polyethylene blend; (E) from 2.5 wt.-% to 15.0 wt.-%, preferably from 3.5 to 12.5 wt.-%, more preferably from 4.0 to 11.0 wt.-% of an ethylene-based plastomer; and (F) from 2.5 wt.-% to 25.0 wt.-%, preferably from 3.5 to 22.0 wt.-%, more preferably from 4.0 to 20.0 wt.-% of an inorganic filler an article comprising the composition as described above or below in an amount of from 90 wt.-% to 100 wt.-%, and the use of the composition as described above or below for injection moulding of articles, preferably automotive articles, more preferably automotive interior articles.

The invention discloses a wear-resistant elastoplastic body quincunx pump molded line and a quincunx pump thereof. The molded line is fixed by an outer rotor, and an inner rotor performs eccentric motion along the inner side of the outer rotor and is formed by conjugate meshing; the molded line of a first worm claw part of the outer rotor consists of an arc section AB, an arc section BC, a transition cubic curve section CD, an involute section DE, a transition cubic curve section EF and an arc section FG; the molded line of the second worm claw part of the inner rotor is composed of an arc section ab, an arc section bc, a transition cubic curve section cd, an involute section de, a transition cubic curve section ef and an arc section fg. The characteristics of accurate conjugate meshing and point contact of the involute are adopted, compared with line contact of other molded lines, friction abrasion between rotors is reduced, the sealing effect between the involute and the inner wall of a pump body is good under the high-pressure conveying working condition, it is guaranteed that the conveying pressure is lasting and stable, pulsation is reduced, and the working efficiency is improved.

The present invention relates to a packaging film comprising a first outer film and a second outer film, both made of polypropylene, and a polymer layer that connects the first and second outer films. The polymer layer includes a compatibilizer selected from a group consisting essentially of a propylene / ethylene copolymer, a 1-butene rich 1-butene / ethylene plastomer, a polypropylene heterophasic olefin copolymer, an olefin block copolymer, a hydrogenated styrene-butadiene-styrene block copolymer, an ethylene propylene rubber, an ethylene propylene diene monomer, and a combination thereof. The packaging film provides improved compatibility between the polypropylene layers, resulting in improved recyclability and enhanced mechanical properties.

The invention relates to the field of plastomer modified asphalt preparation, in particular to plastomer modified asphalt and a preparation process thereof. The invention aims to provide the plastomer modified asphalt and the preparation process thereof, and the plastomer modified asphalt and the preparation process thereof have the beneficial effects that the surfaces of the stirring blades for stirring plastomer modified asphalt raw materials are regularly polished and cleaned under the condition that the stirring blades are not detached, so that the service life of the stirring blades is prolonged, and the workload of regularly maintaining the whole equipment is reduced. According to the technical scheme, the plastomer modified asphalt preparation device comprises a stirring box and power rods rotationally connected to the front side and the rear side of the interior of the stirring box, the middle of each power rod is fixedly connected with a stirring frame, and a plurality of stirring blades are evenly and fixedly connected to each stirring frame in the circumferential direction; the front side and the rear side of the left side of the stirring box are each provided with an inverted-U-shaped hole, and a sliding frame is slidably connected into each inverted-U-shaped hole.

Embodiments of the present invention relate to machine direction oriented films having a matte surface. The films according to embodiments disclosed herein include a first outer layer, a core, and a second outer layer, wherein the first outer layer has a matte surface and a surface of roughness of greater than 50 microns. The first outer layer includes a high density polyethylene and a polyethylene elastomer or plastomer. The machine direction oriented film can have excellent optical properties and can be recyclable.

Method for coating a body part, comprising the following steps: - Providing the body part, - Coating at least one area of ​​the body part with a curable plastic compound, - Drying the plastic mass in a first dryer, - Subsequent coating of the body part with at least one paint material, and - drying the paint material in a second dryer, wherein the drying of the plastic mass is carried out in a drying room of the first dryer in which an air pressure is reduced compared to an atmospheric pressure outside the drying room.

The present invention is directed to a polypropylene composition (P) comprising a copolymer (C) of propylene and 1-hexene comprising a first random propylene copolymer (A) of propylene and a 1-hexene, and a second random propylene copolymer (B) of propylene and 1-hexene having a higher 1-hexene content than the first random propylene copolymer (A) as well as a plastomer (PL) being an elastomeric copolymer of ethylene and at least one C4 to C10 α-olefin. Further, the present invention is directed to an article comprising said polypropylene composition (P) and the use of said polypropylene composition (P) as a sealing layer in a multi-layer film.

The utility model discloses a colored pottery stone concrete terrace anti-cracking structure, and belongs to the field of concrete terrace anti-cracking, the colored pottery stone concrete terrace anti-cracking structure comprises a base layer, the top of the base layer is fixedly connected with an adhesion layer, the top of the adhesion layer is fixedly connected with a damp-proof layer, and the top of the damp-proof layer is fixedly connected with a heat preservation layer; the painted pottery stone concrete layer and the steel wire mesh layer are arranged, hollowing in the painted pottery stone concrete layer is reduced through the steel wire mesh layer, painted pottery stones in the painted pottery stone concrete layer replace part of gravel particles, the overall specific gravity can be effectively reduced, and the painted pottery stone concrete layer is endowed with the characteristic of rich color changes; a proper amount of anti-cracking steel fibers are introduced into the colored pottery stone concrete layer, and then the anti-cracking steel fibers are embedded into the plastomer to play a bridging effect, so that the tensile stress resistance is greatly improved, the local fracture instability phenomenon is reduced, the problem that a traditional concrete terrace is prone to cracking generally is solved, and practicability is improved.

The present disclosure relates to a polymer composition including (a) 80 to 99 wt.-% based on a total weight of the polymer composition of a specific metallocene-catalysed multimodal polyethylene copolymer and (b) 1 to 20 wt.-% based on the total weight of the polymer composition of a specific plastomer being a copolymer of propylene and 1-butene; wherein the weight proportions of components (a) and (b) add up to 100 wt.-%. Furthermore, the present disclosure relates to a film having the polymer composition, to its use for producing the film and to the use and / or inclusion of the film as packaging material.

The present invention relates to a multilayer polyethylene film comprising in order at least an outer layer, a core layer and a sealing layer, wherein the sealing layer comprises: i) at least 30.0 wt% of a first multimodal linear low density polyethylene terpolymer relative to the total weight of the sealing layer; and ii) at least 10.0 wt% of a first plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the sealing layer; wherein the core layer comprises: a) at least 8.0 wt% of a second plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the core layer, or b) at least 8.0 wt% of a multimodal linear low density polyethylene (LLDPE) binary copolymer relative to the total weight of the sealing layer; and c) a second multimodal polyethylene terpolymer. 3 The present invention relates to a multilayer polyethylene film comprising in order at least an outer layer, a core layer and a sealing layer, wherein the sealing layer comprises: i) at least 30.0 wt% of a first multimodal linear low density polyethylene terpolymer relative to the total weight of the sealing layer; and ii) at least 10.0 wt% of a first plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the sealing layer; wherein the core layer comprises: a) at least 8.0 wt% of a second plastomeric body having a density of 910 kg / m3or less (ISO 1183) relative to the total weight of the core layer, or b) at least 8.0 wt% of a multimodal linear low density polyethylene (LLDPE) binary copolymer relative to the total weight of the sealing layer; and c) a second multimodal polyethylene terpolymer. 3 ​

Packaging comprising a packaging container as well as a multi-layer sealing part, wherein the sealing part has at least one carrier layer and one adhesive layer, the carrier layer consisting of a first polyolefin-based plastic with a first melting temperature, the adhesive layer consisting of a second polyolefin-based elastomer or plastomer with a second melting temperature that is lower than the first melting temperature, wherein the packaging container consists of a third polyolefin-based plastic with a third melting temperature that is higher than the second melting temperature, and has a sealing collar with an essentially planar sealing collar, wherein the adhesive layer of the sealing part adheres to the sealing collar of the packaging container, and wherein the sealing part has an elastic clamping structure in spatial proximity to the sealing collar.

A composition suitable for automotive application obtainable by blending at least components (A), (B), (C), (D) and (E): (A) from 5.0 to 40.0 wt.-%, preferably from 7.0 to 37.5 wt.-%, more preferably from 8.0 to 35.0 wt.-% of a first heterophasic propylene copolymer; (B) from more than 20.0 to 35.0 wt.-%, preferably from 21.0 to 32.5 wt.-%, more preferably from 22.0 to 31.0 wt.-% of a second heterophasic propylene copolymer; (C) from 10.0 wt.-% to 50.0 wt.-%, preferably 12.0 to 47.5 wt.-%, more preferably 14.0 to 46.0 wt.-% of a mixed-plastics polypropylene blend; (D) from 2.5 wt.-% to 15.0 wt.-%, preferably 3.5 to 12.5 wt.-%, more preferably 4.0 to 11.0 wt.-% of an ethylene-based plastomer; and (E) from 2.5 wt.-% to less than 12.5 wt.-%, preferably 3.5 to 12.0 wt.-%, more preferably 4.0 to 11.0 wt.-% of an inorganic filler, an article comprising the composition as described above or below in an amount of from 90 wt.-% to 100 wt.-%, and the use of the composition as described above or below for injection molding of articles, preferably automotive articles, more preferably automotive interior articles.

A composition suitable for automotive applications, which can be obtained by blending at least components (A), (B), (C) and (D): (A) 15% to 50% by weight, preferably 18 to 44% by weight, more preferably 20 to 40% by weight of a mixed plastic polypropylene blend; (B) 20% to 50% by weight, preferably 22 to 47% by weight, more preferably 25 to 45% by weight of a multiphase propylene copolymer; (C) 5% to 25% by weight, preferably 7 to 23% by weight, more preferably 10 to 22% by weight of an ethylene-based plastomer, and (D) 5% to 25% by weight, preferably 7 to 22% by weight, more preferably 10 to 20% by weight of an inorganic filler.

The present invention relates to an asphalt composition comprising a modified bitumen with a hydroxyl-functionalized polymer configured to create a thermally reversible cross-linking network within the composition, wherein the hydroxyl functionalized polymer is selected from the group comprising: hydroxyl functionalized polyolefin thermoplast, hydroxyl functionalized polyolefin elastomer, hydroxyl functionalized polyolefin plastomer.

The invention relates to the technical field of road technical materials, in particular to an asphalt modifier, environment-friendly plastomer modified asphalt and a preparation method of the environment-friendly plastomer modified asphalt. The asphalt modifier is prepared from 25 to 30 parts of polyhydroxyalkanoate, 5 to 10 parts of bagasse fiber, 1 to 4 parts of trimethylamine ethyl piperazine, 1 to 3 parts of 5-hydroxymethylfurfural, 1 to 3 parts of p-toluenesulfonic acid, 0.3 to 0.8 part of aluminum hydroxide, 0.1 to 0.5 part of a dispersing agent, 0.5 to 1.0 part of an anti-aging agent, 0.8 to 1.0 part of an environment-friendly plasticizer and 0.2 to 0.5 part of an antioxidant. Compared with the prior art, maleic anhydride and treated bagasse form bagasse fibers containing carboxyl groups under the action of benzoyl peroxide, non-polar chain segments are introduced, the dispersity of the bagasse fibers is improved, the bagasse fibers, polyhydroxyalkanoate, trimethylamine ethyl piperazine and other components are used for preparing the asphalt modifier to prepare the modified asphalt, and the modified asphalt has the advantages of being environmentally friendly, free of toxic and side effects and the like. The Marshall stability and the splitting strength of the mixture are enhanced.

The present invention relates to a packaging film comprising a first outer film and a second outer film, both made of polypropylene, and a polymer layer that connects the first and second outer films. The polymer layer includes a compatibilizer selected from a group consisting essentially of a propylene / ethylene copolymer, a 1-butene rich 1-butene / ethylene plastomer, a polypropylene heterophasic olefin copolymer, an olefin block copolymer, a hydrogenated styrene-butadiene-styrene block copolymer, an ethylene propylene rubber, an ethylene propylene diene monomer, and a combination thereof. The packaging film provides improved compatibility between the polypropylene layers, resulting in improved recyclability and enhanced mechanical properties.

This invention relates to an asphalt composition comprising modified asphalt and a hydroxyl-functionalized polymer configured to generate a thermally reversible crosslinked network in the composition, wherein the hydroxyl-functionalized polymer is selected from: hydroxyl-functionalized polyolefin thermoplastics, hydroxyl-functionalized polyolefin elastomers, and hydroxyl-functionalized polyolefin plastics.

The application discloses an anticorrosion base film, which comprises a low-friction layer, a transition layer and an adhesive layer in sequence, and the adhesive layer is used for bonding with a metal plate; the low-friction layer comprises an elastomer, a plastic body and silicone master particles; the low-friction layer is used for reducing the friction coefficient of the anticorrosion base film and improving the anticorrosion performance of the anticorrosion base film. The anticorrosion base film has low friction coefficient, can avoid breakage when being applied to a metal laminated plate pressing tile, and can further improve the anticorrosion effect; the production process is simple, one-time forming is adopted, oily and aqueous adhesives are not needed, and the production is completed by using high molecular materials; the anticorrosion base film has the characteristics of resisting tile press wear, having strong bonding force with the metal plate, excellent corrosion resistance and the like.

The present invention relates to a polymer composition comprising the following components: A) 5% to 35% by weight, based on the total weight of the polymer composition, of a recycled polyolefin fabric substrate; wherein the fabric substrate is coated with a polyolefin composition comprising the following components: a1) a vinyl plastomer having a density measured according to ISO 1183-1 in the range of 0.857 g / cm 3 to 0.915 g / cm 3 and a melt flow rate (MFR) measured according to ISO 1133 in the range of 0.5 g / 10 min to 30 g / 10 min 2 (190 °C, 2.16 kg); and a2) a propylene plastomer having a density measured according to ISO 1183-1 in the range of 0.850 g / cm 3 to 0.910 g / cm 3 and a melt flow rate (MFR) measured according to ISO 1133 in the range of 0.01 g / 10 min to 30 g / 10 min 2 (230 °C, 2.16 kg); B) 65% to 95% by weight, based on the total weight of the polymer composition, of a homopolypropylene or a recycled polymer blend, the recycled polymer blend comprising b1) polypropylene and b2) polyethylene, wherein the weight ratio of b1) to b2) is from 3:7 to 12:1; provided that components A) and B) together add up to 100% by weight. Furthermore, the present invention relates to the use of component A) for increasing the Charpy notched impact strength of component B), and to articles comprising the polymer composition according to the present invention.

The invention relates to the technical field of anti-fog films, and particularly discloses an anti-fog composite film and a preparation method thereof.The anti-fog composite film comprises a surface layer printing film, a glue layer and a co-extrusion anti-fog layer which are sequentially stacked from top to bottom; the co-extrusion anti-fog layer comprises a first PA layer, a second adhesive layer, a third PA layer, a fourth adhesive layer, a fifth barrier PE layer, a sixth barrier PE layer and a seventh PE anti-fog layer which are sequentially stacked from top to bottom; the seventh PE anti-fog layer is prepared from 30%-80% of linear low-density polyethylene, 10%-35% of metallocene linear low-density polyethylene, 10%-30% of a polyolefin plastomer, 5%-15% wt of an anti-fog agent and 2%-5% of an anti-blocking agent. The PA layers and the PE layers are arranged in the co-extrusion anti-fogging layer, so that the barrier property of the film is improved, an anti-fogging agent can be effectively and synergistically prevented from migrating to the glue layer, and the problem that a traditional anti-fogging easy-to-uncover film is poor in anti-fogging effect and transparency after being compounded is solved.

Provided in the present disclosure are a coated metal plate and a preparation method therefor, and a roof. The coated metal plate comprises a polymer layer, an adhesive layer and a metal layer, which are sequentially stacked, wherein on the basis of the total weight of the polymer layer, the polymer layer comprises a propenyl copolymer, a filler and an auxiliary agent, a propenyl component in the propenyl copolymer being not higher than 90%; the adhesive layer comprises a first adhesive layer in contact with the polymer layer, a second adhesive layer in contact with the metal layer, and a third adhesive layer located between the first adhesive layer and the second adhesive layer; and the adhesive layer comprises at least one of a polyolefin elastomer, a polyolefin plastomer and a polyolefin oligomer, and further comprises a maleic-anhydride-grafted polymer, a tackifying petroleum resin, a polystyrene thermoplastic elastomer and an auxiliary agent, the maleic-anhydride-grafted polymer comprising at least one of maleic-anhydride-grafted EVA, a maleic-anhydride-grafted polyolefin plastomer, a maleic-anhydride-grafted polyolefin elastomer, and a maleic-anhydride-grafted styrene-based thermoplastic elastomer.

The present invention relates to a container liner for loading liquid articles, wherein the liner comprises a film containing one or more layers, and at least one of the layers is an L1 layer comprising: (a) polyethylene P1 having, relative to the total weight of the L1 layer, ≥20.0 wt%, preferably ≥20.0 and ≤80.0 wt%, of the following: · a density of >900 and <915 kg / m 3 , preferably >905 and <913 kg / m 3 , determined in accordance with ASTM D1505 (2010); · a melt mass-flow rate of ≥0.1 and ≤5.0 g / 10 min, preferably ≥0.5 and ≤2.0 g / 10 min, determined in accordance with ISO 1133-1 (2011) at 190 °C using a load of 2.16 kg; and (b) polyethylene plastomer P2 having, relative to the total weight of the L1 layer, ≥20.0 wt%, preferably ≥20.0 and ≤80.0 wt%, of the following: · a density of >880 and <905 kg / m 3 , preferably >890 and <904 kg / m 3 , determined in accordance with ASTM D1505 (2010); · a melt mass-flow rate of ≥0.1 and ≤5.0 g / 10 min, preferably ≥0.5 and ≤2.0 g / 10 min, determined in accordance with ISO 1133-1 (2011) at 190 °C using a load of 2.16 kg. Such a container liner exhibits desirable high flex resistance, and combines high dart impact tolerance, and high tensile strength.

A method for forming a thermoplastic body having regions with varied material composition and / or porosity. Powder blends comprising a thermoplastic polymer, a sacrificial porogen and an inorganic reinforcement or filler are molded to form complementary parts with closely toleranced mating surfaces. The parts are formed discretely, assembled and compression molded to provide a unitary article that is free from discernible boundaries between the assembled parts. Each part in the assembly has differences in composition and / or porosity, and the assembly has accurate physical features throughout the sections of the formed article, without distortion and nonuniformities caused by variable compaction and densification rates in methods that involve compression molding powder blends in a single step.