Lubricating composition

Abstract

This patent application relates to the use of non-fluorinated aromatic polymers as additives in fluorinated lubricants.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This patent application claims priority to U.S. Patent Application No. 63 / 275025, filed in the United States on November 3, 2021, and European Patent Application No. 21209038.5, filed in Europe on November 18, 2021, the entire contents of which are incorporated herein by reference for all purposes.

[0002] This patent application relates to the use of aromatic polymers as additives for lubricants. [Background technology]

[0003] Certain hydrogen-based lubricants, particularly certain lubricating oils of natural or synthetic origin, are known to be endowed with excellent lubricating properties and are available in the market at reasonable prices. Examples of hydrogen-based lubricants include hydrocarbon-type mineral oils, hydrogenated animal and vegetable oils, synthetic hydrogenated oils such as polyalphaolefins (PAOs), dibasic acid esters, polyol esters, phosphate esters, polyesters, alkylated naphthalenes, polyphenyl ethers, polybutenes, multiply alkylated cyclopentanes, silane hydrocarbons, siloxanes, and polyalkylene glycols.

[0004] Possible alternatives to hydrogen-based lubricants are represented by (per)fluoropolyether (PFPE) lubricants, i.e. lubricants containing perfluorooxyalkylene chains, i.e. chains containing repeating units with at least one ether bond and at least one fluorocarbon moiety. PFPE lubricants have high heat and chemical resistance, making them useful in applications characterized by harsh conditions (very high temperatures, the presence of oxygen, the use of aggressive chemicals and radiation, etc.). However, PFPE oils are more expensive than hydrogenated oils, and therefore are only used when high performance is required.

[0005] In order to function at high temperatures, thickening additives must have good thermal and chemical stability. In addition, fluorinated oils and greases undergo high-temperature decomposition processes in the presence of metals and in oxidative environments, which break the backbone and produce volatile products. This leads to the deterioration of the lubricating performance of both oils and greases.

[0006] To overcome this drawback, it is known from the prior art to use additives which stabilize oils and greases at high temperatures in an oxidizing environment and in the presence of metals, thus ensuring stability during use.

[0007] Liquid stabilizing additives have been disclosed in the prior art. However, in applications requiring continuous use at high temperatures above 200°C, the amount of additive must be increased, typically to values ​​greater than about 5% by weight based on the total weight of the oil or grease. The drawback of using large amounts of liquid stabilizing additives in the preparation of greases is that the ratio between the liquid components of the grease (oil + additives) and the solid components of the grease (thickeners) changes. Higher amounts of liquid increase the separation of liquid from solids with increasing temperature, resulting in a change in the initial grease consistency. At temperatures above 200°C, oil separation becomes more pronounced. Furthermore, higher use temperatures tend to make liquid additives more prone to evaporation.

[0008] The use of polymers that are solid at room temperature and have a melting point higher than 150° C. was disclosed, for example, in WO 2007 / 082829 (Solvay Solexis SpA). This patent application discloses the use of polymers containing at least one aromatic ring in the main chain as additives for stabilizing perfluoropolyether oils. The compositions disclosed in this patent application comprised aromatic polymer powders, preferably with an average size of 0.1 μm to 1000 μm. A preferred embodiment also contained PTFE powder in addition to said aromatic polymer powder. Summary of the Invention

[0009] The Applicant has recognized that, on the one hand, it is no longer desirable to use PTFE powders for environmental reasons, and, on the other hand, the Applicant has noted that the performance of such aromatic polymer powders is no longer suitable to meet the ever-increasing demands of the specialty industries.

[0010] Faced with these challenges, applicants have developed novel compositions that have excellent thermal stability at high temperatures, particularly at temperatures above 200° C., in oxidizing environments.

[0011] More specifically, the applicant has developed powders of aromatic polymers characterized by specific particle size and surface area that are capable of stabilizing hydrogenated oils at high temperatures in oxidizing environments and also fluorinated oils at high temperatures, even in the presence of metals, such as above 200°C. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] For purposes of this description and the following claims: - the use of parentheses around a symbol or number specifying a formula, e.g. in an expression such as "polymer (P)", has the sole purpose of better distinguishing the symbol or number from the rest of the text, and therefore said parentheses may also be omitted.

[0013] Thus, in a first aspect, the present invention provides a method for producing a medicament for the treatment of a pulmonary arthritis, comprising: (A) 99.9% by weight to 65.0% by weight, or 99.0% by weight to 68.0% by weight, of at least one hydrogenated oil or (fully)fluorinated oil, based on 100% by weight of the composition; (B) 0.1% by weight to 35.0% by weight, preferably 1.0% by weight to 32.0% by weight, of at least one aromatic polymer, based on 100% by weight of the composition; A composition comprising: - has a melting point of at least 150°C, and - Average particle size (d 50) in the range of >1 μm to ≤15 μm and a surface area (determined by gas adsorption using the BET method according to ISO 9277) of 0.5 m 2 / g or more 5m 2 / g or less in the form of a powder, Concerning the composition.

[0014] Preferably, the aromatic polymer has a particle size distribution of greater than 1 μm, more preferably greater than 2 μm, and even more preferably greater than 3 μm, as measured by laser diffraction particle size analysis as a volumetric particle size distribution. 50 It is in the form of a powder having the formula:

[0015] Preferably, the aromatic polymer has a d of less than 15 μm, more preferably less than 12 μm, and even more preferably less than 10 μm, as measured by laser diffraction particle size analysis as a volumetric particle size distribution. 50 It is in the form of a powder having the formula:

[0016] Preferably, the at least one hydrogenated oil is a mineral oil or a synthetic oil, such as polyalphaolefins (PAOs) and polyalkylene glycols (PAGs); esters; silicone oils; polyphenyl ethers; and the like.

[0017] Preferably, said at least one (fully)fluorinated oil is a (per)fluoropolyether (PFPE) polymer.

[0018] Preferably, the PFPE polymer comprises a partially or fully fluorinated chain [chain (Rf)] comprising, preferably consisting of, repeating units R°, said repeating units being (i) -CFXO- (wherein X is F or CF3), (ii) -CFXCFXO-, where X is the same or different at each occurrence and is F or CF, provided that at least one of X is -F; (iii) -CFCFCWO- (wherein each W is the same or different and is F, Cl, H); (iv) -CF2CF2CF2CF2O-, (v)-(CF2) j -CFZ-O- (wherein j is an integer of 0 to 3, and Z is a group represented by the general formula -OR (f-a) -T group, R (f-a) is a fluoropolyoxyalkene chain containing 0 to 10 repeat units, said repeat units being selected from -CFXO-, -CF2CFXO-, -CF2CF2CF2O-, -CF2CF2CF2CF2O-, where each X is independently F or CF3, and T is a C1 to C3 perfluoroalkyl group. are independently selected from the group consisting of:

[0019] Preferably, the chain (R f ) is expressed by the following formula: (R f -I) -[(CFX 1 O) g1 (CFX 2 CFX 3 O) g2 (CF2CF2CF2O) g3 (CF2CF2CF2CF2O) g4 ]- (In the formula, -X 1 is independently selected from -F and -CF3; -X 2 , X 3 are the same or different from each other and at each occurrence and are independently -F, -CF3, provided that at least one of X is -F; - g1, g2, g3 and g4 are the same or different from each other and are independently an integer equal to or greater than 0, whereby g1+g2+g3+g4 ranges from 2 to 300, preferably from 2 to 100, and when at least two of g1, g2, g3 and g4 are different from 0, the different repeat units are generally statistically distributed along the chain. Follow.

[0020] More preferably, the chain (R f ) is the formula: (R f -IIA) -[(CF2CF2O) a1(CF2O) a2 ]- (In the formula, a1 and a2 are independently an integer equal to or greater than 0, whereby the number average molecular weight is between 400 and 10,000, preferably between 400 and 5,000, both a1 and a2 being preferably not equal to 0, and the ratio a1 / a2 being preferably comprised between 0.1 and 10; (R f -IIB) -[(CF2CF2O) b1 (CF2O) b2 (CF(CF3)O) b3 (CF2CF(CF3)O) b4 ]- (In the formula, b1, b2, b3, and b4 are independently integers of 0 or more, whereby the number average molecular weight is 400 to 10,000, preferably 400 to 5,000, and preferably b1 is 0, b2, b3, and b4 are greater than 0, and the ratio b4 / (b2+b3) is 1 or more; (R f -IIC) -[(CF2CF2O) c1 (CF2O) c2 (CF2(CF2) cw CF2O) c3 ]- (In the formula, cw=1 or 2, c1, c2 and c3 are independently selected to be integers equal to or greater than 0, such that the number average molecular weight is 400 to 10,000, preferably 400 to 5,000, and preferably c1, c2 and c3 are all greater than 0 and the ratio c3 / (c1+c2) is generally less than 0.2. The chain is selected from:

[0021] Even more preferably, the chain (R f ) is herein represented by the following formula (R f -III): (R f -III) -[(CF2CF2O) a1 (CF2O) a2 ]- (In the formula: a1 and a2 are integers greater than 0, so that the number average molecular weight is between 400 and 10,000, preferably between 400 and 5,000, and the ratio a1 / a2 is generally comprised between 0.1 and 10, more preferably between 0.2 and 5. Follow.

[0022] Said at least one aromatic polymer is advantageously (a) poly(arylene sulfide) (PAS) polymer; (b) poly(phenylene oxide) (PPO) polymers; (c) poly(aryl ether ketone) (PAEK) polymers; and (d) poly(aryl ether sulfone) (PAES) polymer; Among the group including, preferably, the group consisting of:

[0023] Preferably, the (a) poly(arylene sulfide) (PAS) is It is a polymer that contains -(Ar-S)- repeating units, where Ar is an arylene group, also referred to herein as repeating unit (RPA).

[0024] The arylene groups of the PAS can be substituted or unsubstituted.

[0025] Additionally, the PAS can include any isomeric relationship of the sulfide linkages in the polymer; for example, when the arylene group is a phenylene group, the sulfide linkages can be ortho, meta, para, or combinations thereof.

[0026] Preferably, the PAS polymer comprises at least 5, at least 10, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90, at least 95, at least 98 mole % of repeating units (RPA), based on the total number of moles in the PAS. According to one embodiment, the PAS consists essentially of repeating units (RPA).

[0027] Preferably, the PAS polymer is selected from the group consisting of poly(2,4-toluene sulfide), poly(4,4'-biphenylene sulfide), poly(para-phenylene sulfide) (PPS), poly(ortho-phenylene sulfide), poly(meta-phenylene sulfide), poly(xylene sulfide), poly(ethyl isopropyl phenylene sulfide), poly(tetramethyl phenylene sulfide), poly(butyl cyclohexyl phenylene sulfide), poly(hexyldodecyl phenylene sulfide), poly(octadecyl phenylene sulfide), poly(phenyl phenylene sulfide), poly-(tolyl phenylene sulfide), poly(benzyl phenylene sulfide) and poly[octyl-4-(3-methylcyclopentyl) phenylene sulfide].

[0028] More preferably, the PAS has formula I: [ka] It is a PPS containing a repeating unit represented by the following formula:

[0029] More preferably, the PPS comprises at least 50 mol % of the repeat units of formula I, based on the total number of moles in the PPS polymer, for example, at least about 60 mol %, at least about 70 mol %, at least about 80 mol %, at least about 90 mol %, at least about 95 mol %, at least about 99 mol % of the repeat units in the PPS are repeat units of formula I.

[0030] According to one embodiment of the present invention, the PPS polymer is such that about 100 mol % of the repeat units are repeat units of formula I. According to this embodiment, the PPS polymer consists essentially of repeat units of formula I (RPP).

[0031] The PAS polymers of the invention can be obtained by methods known in the art, see in particular WO 2015 / 095362 A1 (Chevron Philipps), WO 2015 / 177857 A1 (Solvay) and WO 2016 / 079243 A1 (Solvay).

[0032] Preferably, the (b) poly(phenylene oxide) (PPO) polymer comprises repeat units according to formula (II): [ka] (In the formula, R and R' are the same or different and are H, -CH3, or -C6H5; where n is an integer of at least 1.

[0033] Preferably, the (c) poly(aryl ether ketone) (PAEK) polymer is a polymer containing more than 50 mol % of repeat units (R-PAEK), the repeat units (R-PAEK) being Ar-C(O)-Ar' groups. (wherein Ar and Ar' are the same or different and are aromatic groups). Includes.

[0034] In some embodiments, the poly(aryl ether ketone) (PAEK) comprises at least 60 mol%, at least 70 mol%, at least 80 mol%, at least 90 mol%, at least 95 mol%, or at least 99 mol%, at least 99.5 mol%, or at least 99.9 mol% of repeat units (R-PAEK). As used herein, mol% is based on the total number of moles of repeat units in the poly(aryl ether ketone) (PAEK).

[0035] In some embodiments, the repeating unit (R-PAEK) has the following formulae (JA) to (JO): [ka] [ka] wherein: each R' is the same or different from the others and is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium; j' is an integer from 0 to 4.

[0036] In the repeat unit (R-PAEK), each phenylene moiety may independently have a 1,2-, 1,4-, or 1,3-bond at another site in the repeat unit different from R'. Preferably, the phenylene moieties have a 1,3- or 1,4-bond, more preferably they have a 1,4-bond.

[0037] In some embodiments, j' of the repeat unit (R-PAEK) is zero in each occurrence, i.e., the phenylene moiety has no other substituents other than those that allow for attachment to the backbone of the polymer.

[0038] Therefore, preferred repeating units (RPAEK) are represented by the following formulae (J'-A) to (J'-O): [ka] [ka] The above is selected from the following:

[0039] In a preferred embodiment, the polyaryletherketone (PAEK) is polyetheretherketone (PEEK).

[0040] In this embodiment, the polyetheretherketone (PEEK) has a repeating unit (R-PEEK) represented by either formula (JA) or (J'-A), and preferably the repeating unit (R-PEEK) is represented by formula (J'-A).

[0041] According to one embodiment, composition (C) comprises a plurality of distinct poly(aryl ether ketone) polymers, each poly(aryl ether ketone) polymer having a distinct repeat unit (RPAEK).

[0042] Preferably, in the (d) poly(aryl ether sulfone) (PAES) polymer, at least 50 mol % of the repeat units are of formula (IV): [ka] (In the formula, (i) each R is the same or different and is selected from halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium; (ii) each h is the same or different and is an integer ranging from 0 to 4; (iii) T is a bond or a sulfone group. [-S(=O)2-], and the group -C(Rj)(Rk)-, where Rj and Rk are the same or different and are selected from the group consisting of hydrogen, halogen, alkyl, alkenyl, alkynyl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium. is a repeating unit.

[0043] Rj and Rk are preferably methyl groups.

[0044] Preferably, at least 60 mol%, 70 mol%, 80 mol%, 90 mol%, 95 mol%, 99 mol%, and most preferably all of the repeat units in the poly(aryl ether sulfone) (PAES) are repeat units of formula (IV). As used herein, mole % is based on the total moles of repeat units in the poly(aryl ether sulfone) (PAES).

[0045] In one embodiment, the poly(aryl ether sulfone) (PAES) is poly(biphenyl ether sulfone). Poly(biphenyl ether sulfone) polymers are poly(aryl ether sulfones) containing biphenyl moieties. Poly(biphenyl ether sulfone), also known as polyphenyl sulfone (PPSU), is obtained, for example, by condensation of 4,4'-dihydroxybiphenyl (biphenol) with 4,4'-dichlorodiphenyl sulfone.

[0046] As used herein, “poly(biphenyl ether sulfone) (PPSU)” refers to a polymer having more than 50 mole % repeat units of formula (IV-A): [ka] The repeating unit (Rppsu) of the formula (I) is any polymer having the repeating unit (Rppsu).

[0047] Preferably, at least 60 mol%, 70 mol%, 80 mol%, 90 mol%, 95 mol%, 99 mol%, and most preferably all of the repeat units in the poly(biphenyl ether sulfone) (PPSU) are repeat units of formula (IV-A).

[0048] In one embodiment, the poly(arylethersulfone) (PAES) is a polyethersulfone (PES).

[0049] As used herein, a “poly(ether sulfone) (PES)” refers to a polymer having at least 50 mol % repeat units of formula (IV-B): [ka] "A" refers to any polymer having repeating units of the formula:

[0050] Preferably, at least 60 mol%, 70 mol%, 80 mol%, 90 mol%, 95 mol%, 99 mol%, and most preferably all of the repeat units in the poly(ether sulfone) (PES) are repeat units of formula (IV-B).

[0051] In one embodiment, the poly(aryl ether sulfone) (PAES) is a polysulfone (PSU). As used herein, "polysulfone (PSU)" means that at least 50 mol % of the repeat units are of the formula (IV-C): [ka] "A" refers to any polymer having repeating units of the formula:

[0052] Preferably, at least 60 mol%, 70 mol%, 80 mol%, 90 mol%, 95 mol%, 99 mol%, and most preferably all of the repeat units in the PSU are repeat units of formula (IV-C).

[0053] The compositions of the present invention may further comprise additional additives, such as those commonly used in lubricant compositions, if required by the end use application. Non-limiting examples of suitable additional additives are rust inhibitors, antioxidants, heat stabilizers, pour point depressants, antiwear agents, including those for high pressures, tracers, dyes, and fillers.

[0054] However, the composition of the invention advantageously does not comprise PTFE as a filler and / or a dispersing agent, such as a surfactant, in particular a non-ionic surfactant.

[0055] The compositions of the present invention can be prepared according to methods known in the art depending on the end use for which the composition is intended.

[0056] The compositions of the present invention may be used as is or may be added to another oil / grease composition.

[0057] In the event that the disclosures of any patents, patent applications, and publications incorporated herein by reference conflict with the description of this application to the extent that may render a term unclear, the description of this application shall control.

[0058] The present invention will now be described with reference to the following examples, the purposes of which are illustrative only and are not intended to limit the scope of the invention. EXAMPLES

[0059] Experimental section material PPS-1:d 50 =2.5μm;Surface area=1.3m 2 / g PPS-2:d 50 =6.0μm;Surface area=1.7m 2 / g Blend PPS-2 / Algoflon® PTFE L203 50 / 50% by weight PEEK-1 (polyether ether ketone): d 50 =10.0μm;Surface area=1.7m 2 / g Base oil: - Fomblin® M30 PFPE was obtained from Solvay Specialty Polymers Italy, SpA - Priolube™ 3970 (nC8 / nC10 polyol ester) was provided by Croda Industrial - Chemical Synfluid® mPAO 40cSt was provided by Chevrons Phillips Chemicals

[0060] The following were used as comparisons: - Algoflon® L206 and Algoflon® L203 - PTFE (polytetrafluoroethylene) (d of both polymers) 50 = 5 μm, surface area = 7.5 m 2 / g and 10.0m 2 / g) was obtained from Solvay Specialty Polymers Italy, SpA. - PPS produced according to the method disclosed in WO 2007 / 082829 cited in the Background section, hereinafter referred to as "PPS-2007" (d 50 =30~35μm;Surface area=1.45m 2 / g).

[0061] method: The particle size distribution was measured by laser diffraction particle size analysis. The specific surface area of ​​the powders was determined by gas adsorption using the BET method (ISO 9277).

[0062] Preparation Examples The greases were prepared by mixing the base oil with at least one polymer in powder form using a high shear laboratory mixer (Silverson 1L). If necessary, the greases were then further homogenized in a 3-roll refiner.

[0063] Example Set A - Base Oil = Fomblin® M30 PFPE Example A-1 For each composition, the concentration of polymer in Fomblin® M30 PFPE was increased until a grease consistency NLGI of 2 was achieved according to ASTM D217-10 (grease penetration range of 265-295 mm in 10 minutes at 25° C.).

[0064] The compositions and their properties are summarized in Table 1.

[0065] [Table 1]

[0066] The powder according to the invention showed good thickening properties, the results being practically similar to those obtained for composition 5 (*C), which had previously been the benchmark for such evaluations.

[0067] Example A-2 For each composition, oil separation was measured at 204°C / 30 hours according to ASTM D6184.

[0068] The results are summarized in Table 2.

[0069] [Table 2]

[0070] Example A-3 For each composition, the low temperature torque was evaluated according to ASTM D1478 in all bearings SKF6204 at a rotation speed of 1 rpm for 1 hour at a temperature of -40°C.

[0071] The results are summarized in Table 3.

[0072] [Table 3]

[0073] The compositions of the present invention exhibit lower starting torque than Comparative Composition 6 (*C), indicating better performance at low temperatures.

[0074] Example A-4 Friction and wear tests were performed according to ASTM D5707: Standard Test Method for Determining the Friction and Wear Properties of Lubricating Greases Using a High Frequency Linear Vibration (SRV) Tester.

[0075] The test was carried out under the following conditions: - Shape: Ball on a disc (φ=10mm) (Material 100Cr6) - Preload 50N for 30 seconds; - 200N load for 2 hours; - stroke 1mm; - Frequency 50Hz; - Temperature: 180℃.

[0076] The results are summarized in Table 4.

[0077] [Table 4]

[0078] The compositions according to the invention exhibited a low coefficient of friction and produced only slight wear marks on the ball.

[0079] Example A-5 Thermal oxidation tests were performed using TGA analysis in air with the grease samples placed in an aluminum cap so that the grease was in contact with the electropositive metal. The samples were heated to 300°C, then ramped isothermally from 300°C to 500°C in 10°C increments for 30 minutes.

[0080] [Table 5]

[0081] The thermo-oxidative stability of the inventive composition was greater than that of the comparative composition.

[0082] Example Set B - Base Oil = Priolube™ 3970 Example B-1 The test was performed as disclosed in Example A-1, and the results are summarized in Table 6.

[0083] [Table 6]

[0084] Example B-2 The test was carried out as disclosed in Example A-2, but at a temperature of 120° C. for 30 hours.

[0085] The results are summarized in Table 7.

[0086] [Table 7]

[0087] The above results showed that the compositions according to the invention were more stable than the comparative compositions.

[0088] Example Set C - Base Oil = Synfluid® mPAO 40 cSt Example C-1 The test was performed as disclosed in Example A-1, and the results are summarized in Table 8.

[0089] [Table 8]

[0090] Example C-2 The test was carried out as disclosed in Example A-2, but at a temperature of 120° C. for 30 hours.

[0091] The results are summarized in Table 9.

[0092] [Table 9]

[0093] The above results showed that the compositions according to the invention were more stable than the comparative compositions.

Claims

1. 1. A composition comprising: (A) 99.9% to 65.0% by weight, based on 100% by weight of the composition, of at least one hydrogenated oil or (fully) fluorinated oil; (B) 0.1% to 35.0% by weight of at least one aromatic polymer, based on 100% by weight of the composition; Contains - have a melting point of at least 150°C, and - Average particle size (d) measured by laser diffraction particle size analysis as a volume particle size distribution ５０ ) in the range of more than 1 μm and not more than 15 μm, and a surface area of ​​0.5 m as determined by gas adsorption using the BET method according to ISO 9277 ２ / g or more 5m ２ / g or less in the form of a powder, composition.

2. The composition comprises: (A) 99% to 68.0% by weight, based on 100% by weight of the composition, of at least one hydrogenated oil or (fully) fluorinated oil; (B) 1.0% to 32.0% by weight of at least one aromatic polymer, based on 100% by weight of the composition; The composition of claim 1 comprising:

3. 2. The composition of claim 1, wherein the at least one hydrogenated oil is a mineral oil or a synthetic oil, preferably selected from the group comprising polyalphaolefins (PAO), polyalkylene glycols (PGA), esters, silicone oils, polyphenyl ethers.

4. 2. The composition of claim 1, wherein said at least one (fully) fluorinated oil is a (per)fluoropolyether (PFPE) polymer.

5. The PFPE polymer comprises a partially or fully fluorinated chain [chain (Rf)] comprising, preferably consisting of, repeating units R°, wherein the repeating units are (i) -CFXO- (wherein X is F or CF ３ (which is (ii) -CFXCFXO-, where X is the same or different at each occurrence and is F or CF ３ provided that at least one of X is -F). (iii)-CF ２ CF ２ CW ２ O- (wherein each W is the same or different at each occurrence and is F, Cl, H); (iv)-CF ２ CF ２ CF ２ CF ２ O-、 (v)-(CF ２ ) ｊ -CFZ-O- (wherein j is an integer of 0 to 3, and Z is a group represented by the general formula -O-R （ｆ－ａ） -T group, and R （ｆ－ａ） is a fluoropolyoxyalkene chain containing 0 to 10 repeat units, each X being independently F or CF ３ -CFXO-, -CF ２ CFXO-, -CF ２ CF ２ CF ２ O-, -CF ２ CF ２ CF ２ CF ２ Selected among O-, T is C １ ~C ３ perfluoroalkyl group) 5. The composition of claim 4, wherein the compound is independently selected from the group consisting of:

6. the at least one aromatic polymer (a) poly(arylene sulfide) (PAS) polymer; (b) poly(phenylene oxide) (PPO) polymer; (c) poly(aryl ether ketone) (PAEK) polymer; and (d) poly(aryl ether sulfone) (PAES) polymer; The composition of claim 1 selected from the group comprising:

7. The (a) poly(arylene sulfide) (PAS) polymer comprises the repeating unit: -(Ar-S)- (RPAs) wherein Ar is an arylene group. The composition of claim 6 comprising:

8. The (b) poly(phenylene oxide) (PPO) polymer has the following formula (II): 【Chemical 1】 (In the formula, R and R' are the same or different and are H, -CH ３ , or -C ６ H ５ and n is an integer of at least 1.

7. The composition of claim 6, comprising a repeat unit according to

9. The (c) poly(aryl ether ketone) (PAEK) polymer is a polymer having a group: Ar-C(O)-Ar' (R-PAEK) wherein Ar and Ar′ are the same or different and are aromatic groups. The composition of claim 6, comprising greater than 50 mole percent repeat units comprising:

10. The (d) poly(aryl ether sulfone) (PAES) polymer has the formula (IV): 【Chemistry 2】 (In the formula, (i) each R is the same or different and is selected from halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium; (ii) each h is the same or different and is an integer ranging from 0 to 4; (iii) T is a bond or a sulfone group. [-S(=O)2-], and the group -C(Rj)(Rk)-, wherein Rj and Rk are the same or different and are selected from the group consisting of hydrogen, halogen, alkyl, alkenyl, alkynyl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium. The composition of claim 6, comprising at least 50 mole percent of repeating units of the formula:

11. 10. The composition of claim 1 further comprising at least one additional additive, preferably selected from the group comprising rust inhibitors, antioxidants, heat stabilizers, pour point depressants, antiwear agents including those for high pressures, tracers, dyes, and fillers.

12. 10. The composition of claim 1, which is free of poly(tetrafluoroethylene) (PTFE).

13. The composition of claim 1 , which is free of dispersants and / or surfactants.

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