Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
205 words
A vulcanizable rubber composition comprising (1) 100 parts by weight of a polymer composition comprising (I) a vinylidene fluoride resin containing at least 90 mole % vinylidene fluoride, (II) at least one rubber selected from the group consisting of acrylic rubbers, α,β-unsaturated nitrile-conjugated diene copolymer rubbers and hydrides of α,β-unsaturated nitrile-conjugated diene copolymer rubbers, said acrylic rubber consisting of (A) 30 to 99.9% by weight of an alkyl acrylate and/or an alkoxy-substituted alkyl acrylate, (B) 0.1 to 10% by weight of a crosslikable monomer and (C) 0 to 70% by weight of another ethylenically unsaturated compound copolymerizable with (A) and (B) (the sum of (A), (B) and (C) is 100% by weight), and said α,β-unsaturated nitrile-conjugated diene copolymer rubber consisting of (D) 10 to 60% by weight of an α,β-unsaturated nitrile, (E) 15 to 90% by weight of a conjugated diene and (F) 0 to 75% by weight of another ethylenically unsaturated compound copolymerizable with (D) and (E) (the sum of (D), (E) and (F) is 100% by weight), and (III) optional blendable polymer, wherein the weight ratio of (I)/[(II)+(III)] is 5/95 to 60/40 and the weight ratio of (II)/(III) is 100/0 to 50/50, and (2) 5 to 40 parts by weight of a plasticizer.
Claim 2
Dependent Claim
205 words
A vulcanizable rubber composition comprising (1) 100 parts by weight of a polymer composition comprising (I) a vinylidene fluoride resin containing at least 90 mole % vinylidene fluoride, (II) at least one rubber selected from the group consisting of acrylic rubbers, α,β-unsaturated nitrile-conjugated diene copolymer rubbers and hydrides of α,β-unsaturated nitrile-conjugated diene copolymer rubbers, said acrylic rubber consisting of (A) 30 to 99.9% by weight of an alkyl acrylate and/or an alkoxy-substituted alkyl acrylate, (B) 0.1 to 10% by weight of a crosslikable monomer and (C) 0 to 70% by weight of another ethylenically unsaturated compound copolymerizable with (A) and (B) (the sum of (A), (B) and (C) is 100% by weight), and said α,β-unsaturated nitrile-conjugated diene copolymer rubber consisting of (D) 10 to 60% by weight of an α,β-unsaturated nitrile, (E) 15 to 90% by weight of a conjugated diene and (F) 0 to 75% by weight of another ethylenically unsaturated compound copolymerizable with (D) and (E) (the sum of (D), (E) and (F) is 100% by weight), and (III) optional blendable polymer, wherein the weight ratio of (I)/[(II)+(III)] is 5/95 to 60/40 and the weight ratio of (II)/(III) is 100/0 to 50/50, and (2) 5 to 40 parts by weight of a plasticizer.
Claim 3
Dependent Claim
36 words
The rubber composition according to claim 1, wherein the plasticizer (2) is at least one member selected from the group consisting of phosphoric acid derivatives, adipic acid derivatives, polyester compounds, polyether compounds and poly(ether ester) compounds.
Claim 4
Dependent Claim
26 words
The rubber composition according to claim 1, wherein the optional blendable polymer (III) is a fluororubber, an epichlorohydrin rubber, a chlorosulfonated polyethylene or a poly(vinyl chloride).
Claim 5
Dependent Claim
56 words
The rubber composition according to claim 1, wherein the rubber (II) is a mixture of 100 to 60% by weight of an acrylic rubber having a Mooney viscosity (ML 1+4 (100° C.)) of 20 to 120 and 0 to 40% by weight of an acrylic rubber having a number average molecular polymer of 500 to 10,000.
Claim 6
Dependent Claim
68 words
The rubber composition according to claim 1, wherein the rubber (II) is a mixture of 100 to 60% by weight of an α,β-unsaturated nitrile-conjugated diene copolymer rubber having a Mooney viscosity (ML 1+4 (100° C.)) of 20 to 150 and/or its hydride and 0 to 40% by weight of an α,β-unsaturated nitrile-conjugated diene copolymer rubber having a number average molecular weight of 500 to 10,000 and/or its hydride.
Claim 7
Dependent Claim
29 words
The rubber composition according to claim 1, wherein the rubber (II) is an α,β-unsaturated nitrile-conjugated diene copolymer rubber in which the diene portions are hydrogenated by 50% or more.
Claim 8
Dependent Claim
45 words
The rubber composition according to claim 1, wherein the rubber (II) is at least one rubber selected from the acrylic rubbers and the hydrides of α,β-unsaturated diene copolymer rubbers, and the weight ratio of the vinylidene fluoride resin (I)/the rubber (II) is 5/95 to 60/40.
Claim 9
Dependent Claim
31 words
The rubber composition according to claim 1, wherein the rubber (II) is the acrylic rubber, and the weight ratio of the vinylidene fluoride resin (I)/the rubber (II) is 5/95 to 60/40.
Claim 10
Dependent Claim
18 words
A diaphragm in which the fluid-contacting surface is made from a vulcanizable rubber composition according to claim 1.
Claim 11
Dependent Claim
13 words
A rubber hose made from a vulcanizable rubber composition according to claim 1.
Claim 12
Dependent Claim
15 words
The rubber composition according to claim 1, wherein the optical blendable polymer (III) is absent.