Abstract: An acrylic elastomer copolymer comprising a copolymerizable antioxidant represented by the general formula: (R1: a C1-20 aliphatic hydrocarbon group, a C7-20 aralkyl group, or a C2-20 acyl group, R2: a hydrogen atom or a methyl group, A: a direct bond or a divalent organic group, B: a direct bond, an oxygen atom, a sulfur atom, a sulfoxide group, or a sulfone group, and x: 0 or 1), an alkyl (meth)acrylate monomer and/or an alkoxyalkyl (meth)acrylate monomer, and a crosslinking site monomer. The acrylic elastomer copolymer is stabilized against thermal oxidative deterioration.

Abstract: A fluorine-containing pyrimidine compound represented by formula (1), (2) or (3): wherein W and X each independently represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, —CmF2m+1, a nitro group, —OA1, —SO1A1, —SA1, —NA1A2, —B(OA1)(OA2), —COA1, —COOA1 or —CONA1A2; Y represents a halogen atom or —OA3; Z represents a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, —CmF2m+1, a nitro group, —OA1, —SO1A1, —SA1 or —NA1A2; A1 and A2 each independently represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; A3 represents a hydrocarbon group having 1 to 12 carbon atoms; m represents in integer of 1 to 10; 1 represents an integer of 1 to 3; and n represents an integer of 0 to 3.

Abstract: A fluorine-containing pyrazole compound represented by general formula (1), wherein R represents a hydrocarbon group having 1 to 12 carbon atoms; X represents a heterocyclic group containing at least one heteroatom selected from the group consisting of a halogen atom, nitrogen and oxygen as a ring atom, —OA1, and —NA1A2; and A1 and A2 each independently represents a hydrogen atom or an organic group having 1 to 10 carbon atoms.

Abstract: A perfluoropolyether phosphate ester represented by the general formula: [C3F7O{CF(CF3)CF2O}nCF(CF3)CH2O]2PO(OH) (wherein n is an integer of 1 to 20). This compound is obtained by reacting a perfluoropolyether alcohol represented by the general formula: C3F7O{CF(CF3)CF2O}nCF(CF3)CH2OH (wherein n is an integer of 1 to 20) with phosphorus oxychloride, and hydrolyzing the obtained compound represented by the general formula: [C3F7O{CF(CF3)CF2O}nCF(CF3)CH2O]2POCl (wherein n is an integer of 1 to 20). Moreover, the perfluoropolyether phosphate ester or a salt thereof forms a surface treatment agent comprising the perfluoropolyether phosphate ester or a salt thereof as an active ingredient.

Abstract: A crosslinkable acrylic rubber composition containing: (A) acrylic rubber containing a carbamic acid ester group and a carboxyl group; (B) a phenothiazine-based antioxidant represented by formula [I], wherein R3 is a hydrogen atom, a monovalent aliphatic hydrocarbon group having 1 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an acyl group represented by formula II, wherein R4 is a monovalent aliphatic hydrocarbon group having 1 to 20 carbon atoms, and R5 is an aralkyl group having 7 to 20 carbon atoms; and (C) a crosslinking accelerator.

Abstract: A fluorine-containing elastomer composition comprising 0.4 to 4.0 parts by weight of a pigment that is a perylene-based compound, a naphthalenecarboxamide-based compound, a pyrimidinetrione-based compound, or a benzimidazolone-based compound, and 0.2 to 5.0 parts by weight of a bisamidoxime compound or 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane, based on 100 parts by weight of a fluorine-containing elastomer having a copolymer composition of (A) 60.0 to 80.0 mol % of tetrafluoroethylene, (B) 19.8 to 39.8 mol % of perfluoro(lower alkyl vinyl ether) or perfluoro(lower alkoxy lower alkyl vinyl ether), and (C) 0.2 to 5.0 mol % of a perfluoro unsaturated nitrile compound.

Abstract: A fluorine-containing pyrimidine compound is provided represented by general formula (1), (2), (3), (4), (5), or (6) below. wherein, in the general formulae (1) to (6) above, R represents a hydrocarbon group having 1 to 12 carbon atoms; and X and Y each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, —CnF2n+1 (n is an integer of 1 to 10), a nitro group, a boronate group, —OA1, —SOmA1 (m is an integer of 0 to 3), —NA1A2, —COOA1, or —CONA1A2, and A1 and A2 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms.

Abstract: An ethylene-(meth)acrylate-based elastomer having a structure in which 40 to 79.9 mol % of ethylene, 20.0 to 50.0 mol % of an alkyl (meth)acrylate containing an alkyl group having 1 to 8 carbon atoms and/or an alkoxy (meth)acrylate containing an alkoxyalkyl group having 2 to 8 carbon atoms, 0.05 to 20.0 mol % of an unsaturated dicarboxylic acid monosaturated ester, and 0 to 20.0 mol % of an unsaturated dicarboxylic anhydride are copolymerized, and having a monosaturated esterification rate of the acid anhydride of 70% or more as measured by IR. The ethylene-(meth)acrylate-based elastomer gives a vulcanizate having excellent heat resistance, and molding processability.

Abstract: An ethylene-(meth)acrylate-based elastomer having a structure in which 40 to 79.9 mol % of ethylene, 20.0 to 50.0 mol % of an alkyl (meth)acrylate containing an alkyl group having 1 to 8 carbon atoms and/or an alkoxy (meth)acrylate containing an alkoxyalkyl group having 2 to 8 carbon atoms, 0.05 to 20.0 mol % of an unsaturated dicarboxylic acid, and 0.001 to 20.0 mol % of an unsaturated dicarboxylic anhydride are copolymerized, and having a melt flow rate of 0.01 to 100 g/10 min measured under the conditions of a temperature of 190° C. and a load of 2.16 kg. The ethylene-(meth)acrylate-based elastomer gives a vulcanizate having excellent heat resistance, oil resistance, and molding processability.

Abstract: A carbamate ester compound represented by the general formula: Z—OCONH(CH2)nNHCOO—Z??[I] wherein Z is [i], [ii], or [iii] below, and n is an integer of 2 to 10, (wherein R1 and R2 are each independently a lower alkyl group having 1 to 5 carbon atoms, R3 is a hydrogen atom or a lower alkyl group having 1 to 5 carbon atoms, and a is 1 or 2). The carbamate ester compound is used as a vulcanizing agent for carboxyl group-containing acrylic rubber and improves the delay of the vulcanization rate by scorch suppression.

Abstract: An acrylic rubber that is a copolymer in which 1 to 3 wt. % of a fumaric acid monoalkyl ester monomer containing an alkyl group having 1 to 8 carbon atoms is copolymerized as a crosslinkable comonomer, wherein 45 to 65 wt. % of n-butyl acrylate, 12 to 32 wt. % of 2-methoxyethyl acrylate, and 11 to 30 wt. % of ethoxyethoxyethyl acrylate are copolymerized in 100 wt. % of comonomers other than the crosslinkable comonomer. This acrylic rubber can suppress the reduction of oil resistance while improving cold resistance represented by a TR-10 value.

Abstract: An acrylic rubber that is a copolymer in which 1 to 4 wt. % of a reactive halogen group-containing vinyl monomer is copolymerized as a crosslinkable comonomer, wherein 45 to 65 wt. % of n-butyl acrylate, 10 to 35 wt. % of 2-methoxyethyl acrylate and 8 to 30 wt. % of ethoxyethoxyethyl acrylate are copolymerized in 100 wt. % of comonomers other than the crosslinkable comonomer. This ethoxyethoxyethyl acrylate-copolymerized acrylic rubber can suppress the reduction of oil resistance while improving cold resistance represented by a TR-10 value, and by compounding it with a vulcanizing agent corresponding to the crosslinkable group thereof, a crosslinkable composition is formed.

Abstract: A phenothiazine derivative represented by the general formula: (wherein R1 is a monovalent aliphatic hydrocarbon group having 1 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms, and R2.Ar is an aralkyl group, wherein R2 is a divalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, and Ar is a monovalent aromatic hydrocarbon group having 6 to 10 carbon atoms), and a carboxyl group-containing acrylic rubber composition comprising, based on 100 parts by weight of carboxyl group-containing acrylic rubber: (A) 0.1 to 5 parts by weight of the phenothiazine derivative represented by the formula [I]; (B) 0.1 to 3 parts by weight of a crosslinking agent for carboxyl group-containing acrylic rubber; and (C) 0.1 to 5 parts by weight of a crosslinking accelerator for carboxyl group-containing acrylic rubber.

Abstract: An acrylic elastomer copolymer that is a copolymer of (A) an alkyl (meth)acrylate and/or alkoxyalkyl (meth)acrylate monomer, (B) an ?,?-unsaturated carboxylic acid monomer, and (C) a (meth)acrylate monomer having a carbamic acid ester group represented by the general formula: (wherein R1 is a hydrogen atom or a methyl group, and R2 is a divalent aliphatic hydrocarbon group having 1 to 10 carbon atoms). A crosslinkable composition in which a crosslinking accelerator is compounded with the acrylic elastomer copolymer.

Abstract: Provided are: an ionic liquid including the fluorine-containing phosphate ester anions represented by formula (1); and a lubricating oil composition including said ionic liquid. (In the formula, Rf represents a C1-14 perfluoroalkyl group. R1 represents a C1-8 alkyl group.

Abstract: Provided are: an ionic liquid including the fluorine-containing phosphate ester anions represented by formula (1); and a lubricating oil composition including said ionic liquid. (In the formula, Rf represents a C1-14 perfluoroalkyl group. R1 represents a C1-8 alkyl group.

Abstract: A fluorine-containing alcohol composite comprising a condensate of a fluorine-containing alcohol represented by the general formula: HO-A-RF-A-OH [I] (wherein RF is a group containing a perfluoroalkylene group or a polyfluoroalkylene group having 6 or less carbon atoms and an ether bond, and A is an alkylene group having 1 to 3 carbon atoms), a hydroxyl group-containing polymer, and a zirconium compound. The fluorine-containing alcohol composite, using a fluorine-containing alcohol, does not produce perfluorooctanoic acid and the like when released into the environment and that has a unit easily decomposed into short chain compounds. And also, it exhibits hydrophilic oil repellency.

Abstract: A soft water- and oil-repellent comprising, as an active ingredient, a copolymer of a perfluoropolyether alcohol (meth)acrylic acid derivative represented by the general formula: CH2?CR1COOCH2CF(CF3)[OCF2CF(CF3)]nOC3F7??[I] (wherein R1 is a hydrogen atom or a methyl group, and n is an integer of 1 to 20), and a (meth)acrylic acid ester represented by the general formula: CH2?CR1COOR2??[II] (wherein R1 is a hydrogen atom or a methyl group, and R2 is an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an aryl group, or an aralkyl group) and having a glass transition temperature Tg of 51 to 120° C. The soft water- and oil-repellent gives a coating film formed from a coating agent which closely follows the deformation of rubber or resin, and exhibits water- and oil-repellency.

Abstract: An acrylic rubber contains a copolymer of a monomer mixture of: 25 to 46 wt. % of alkoxyalkyl acrylate, 23 to 37 wt. % of 2-ethylhexyl acrylate, 9 to 17 wt. % of alkyl methacrylate, 1 to 3 wt. % of monoalkyl fumarate and the remaining amount is ethyl acrylate. This acrylic rubber improves hydrolysis resistance by introducing a specific alkyl acrylic monomer with extremely low hydrolysis property i.e. low hydrophilicity, and at the same time satisfies all of oil resistance, cold resistance, and hydrolysis resistance in a well-balanced manner.

Abstract: An acrylic rubber that is a copolymer in which 1 to 3 wt. % of a fumaric acid monoalkyl ester monomer containing an alkyl group having 1 to 8 carbon atoms is copolymerized as a crosslinkable comonomer, wherein 45 to 65 wt. % of n-butyl acrylate, 12 to 32 wt. % of 2-methoxyethyl acrylate, and 11 to 30 wt. % of ethoxyethoxyethyl acrylate are copolymerized in 100 wt. % of comonomers other than the crosslinkable comonomer. This acrylic rubber can suppress the reduction of oil resistance while improving cold resistance represented by a TR-10 value.