Patent EP0419218B1 successfully refreshed from Google Patents.
EP0419218B1
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Rubber laminate
Assignee: JSR Corp
•
Filing: 1990-09-18
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Granted: 1996-01-31
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Expires: 2010-09-18
Abstract
No abstract record available.
Inventors
- 👤 Toshio Miyabayashi
- 👤 Shinichiro Zen
- 👤 Masayoshi Ichikawa
- 👤 Hideyuki Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 17:56
CPC Classifications
B; B32; B32B; B32B25/00; B32B25/04; B32B25/042; B32B25/14; C; C08; C08J; C08J5/00; C08J5/12; C08L; C08L33/00; C08L33/04; C08L33/14; B32B2250/00; B32B2250/24; B32B2250/248; B32B2270/00; B32B2307/00; B32B2307/70; B32B2307/718; C08J2321/00; C08L27/00; C08L27/02; C08L27/12; C08L27/16; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31935
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
305 words
A rubber laminate wherein a rubber layer (1) consisting of the following rubber compound (a) and a rubber layer (2) consisting of the following rubber compound (b) have been strongly bonded to each other by vulcanization: (a) a rubber compound consisting essentially of 100 parts by weight of an acrylic blend rubber, 20-30 parts by weight of a plasticizer comprising at least a phosphate type plasticizer and, as a vulcanizing agent, a diamine carbamate compound and 1-orthotolylbiguanide, the acrylic blend rubber consisting of (I) an acrylic rubber composed of (A) 7.0-69.9% by weight of an alkyl acrylate, (B) 30.0-70.0% by weight of an alkoxy-substituted alkyl acrylate, (C) 0.1-3.0% by weight of an epoxy group-containing ethylenically unsaturated compound, and (D) 0-20.0% by weight of other ethylenically unsaturated compound copolymerizable with the (A), (B) and (C) components ((A) + (B) + (C) + (D) = 100% by weight) and (II) a vinylidene fluoride resin, the weight ratio of the acrylic rubber (I)/the vinylidene fluoride resin (II) in the acrylic blend rubber being 85/15 to 75/25, (b) a rubber compound consisting essentially of 100 parts by weight of an acrylic rubber (III) and 20-40 parts by weight of a plasticizer, the proportion of the plasticizer being equal to or larger than the proportion of the plasticizer in the rubber compound (a), the acrylic rubber (III) being composed of (E) 1.0-49.9% by weight of an alkyl acrylate, (F) 50.0-80.0% by weight of an alkoxy-substituted alkyl acrylate, (G) 0.1-3.0% by weight of an epoxy group-containing ethylenically unsaturated compound, and (H) 0-20.0% by weight of other ethylenically unsaturated compound copolymerizable with the (E), (F) and (G) components ((E) + (F) + (G) + (H) = 100% by weight), the proportion of the (F) component being equal to or larger than the proportion of the (B) component in the acrylic rubber (I).
Claim 2
Dependent Claim
29 words
A rubber laminate according to Claim 1, wherein the (A) component is an ester represented by general formula (i): wherein R¹ is an alkyl group of 1-18 carbon atoms.
Claim 3
Dependent Claim
44 words
A rubber laminate according to Claim 2, wherein the ester of general formula (i) is methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, isobutyl acrylate, n-pentyl acrylate, isoamyl acrylate, n-hexyl acrylate, 2-methylpentyl acrylate, n-octyl acrylate, 2-ethylhexyl acrylate, n-decyl acrylate, n-dodecyl acrylate or n-octadecyl acrylate.
Claim 4
Dependent Claim
20 words
A rubber laminate according to Claim 2, wherein the ester of general formula (i) is methyl acrylate or ethyl acrylate.
Claim 5
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (A) component is 20-50% by weight.
Claim 6
Dependent Claim
39 words
A rubber laminate according to Claim 1, wherein the (B) component is an ester represented by general formula (ii): wherein R² is an alkyl group of 1-12 carbon atoms and R³ is an alkylene group of 1-12 carbon atoms.
Claim 7
Dependent Claim
32 words
A rubber laminate according to Claim 6, wherein the ester of general formula (ii) is 2-methoxyethyl acrylate, 2-ethoxyethyl acrylate, 2-(n-propoxy)ethyl acrylate, 2-(n-butoxy)ethyl acrylate, 3-methoxypropyl acrylate, 3-ethoxypropyl acrylate, 2-(n-propoxy)propyl acrylate or 2-(n-butoxy)propyl acrylate.
Claim 8
Dependent Claim
17 words
A rubber laminate according to Claim 6, wherein the ester of general formula (ii) is 2-methoxyethyl acrylate.
Claim 9
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (B) component is 40-60% by weight.
Claim 10
Dependent Claim
20 words
A rubber laminate according to Claim 1, wherein the (C) component is allyl glycidyl ether, glycidyl methacrylate or glycidyl acrylate.
Claim 11
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (C) component is 0.4-1.5% by weight.
Claim 12
Dependent Claim
17 words
A rubber laminate according to Claim 1, wherein the (D) component is acrylonitrile, ethylene or vinyl acetate.
Claim 13
Dependent Claim
21 words
A rubber laminate according to Claim 1, wherein the proportion of the (D) component is not more than 15% by weight.
Claim 14
Dependent Claim
57 words
A rubber laminate according to Claim 1, wherein the vinylidene fluoride resin (II) is a polyvinylidene fluoride or a copolymer of vinylidene fluoride and at least one compound selected from the group consisting of hexafluoropropene, pentafluoropropene, trifluoroethylene, trifluorochloroethylene, tetrafluoroethylene, vinyl fluoride, perfluoro(methyl vinyl ether), perfluoro(propyl vinyl ether), vinyl acetate, ethylene, propylene, butadiene, styrene and acrylic acid esters.
Claim 15
Dependent Claim
19 words
A rubber laminate according to Claim 14, wherein the copolymer contains at least 90 mole % of vinylidene fluoride.
Claim 16
Dependent Claim
21 words
A rubber laminate according to Claim 1, wherein the acrylic rubber (I)/the vinylidene fluoride resin weight ratio is 80/20 - 75/25.
Claim 17
Dependent Claim
20 words
A rubber laminate according to Claim 1, wherein the phosphate type plasticizer is tri-(2-ethylhexyl) phosphate, trisphenyl phosphate or tributoxyethyl phosphate.
Claim 18
Dependent Claim
32 words
A rubber laminate according to Claim 1, wherein the plasticizer in the rubber compound (a) comprises, besides the phosphate type plasticizer, a phthalic acid derivative compound or an adipic acid derivative compound.
Claim 19
Dependent Claim
50 words
A rubber laminate according to Claim 1, wherein the amount of the diamine carbamate compound is 0.3-2.0 parts by weight per 100 parts by weight of the acrylic blend rubber and the amount of 1-orthotolylbiguanide is 0.5-6.0 parts by weight per 100 parts by weight of the acrylic blend rubber.
Claim 20
Dependent Claim
29 words
A rubber laminate according to Claim 1, wherein the (E) component is an ester represented by general formula (i): wherein R¹ is an alkyl group of 1-18 carbon atoms.
Claim 21
Dependent Claim
44 words
A rubber laminate according to Claim 20, wherein the ester of general formula (i) is methyl acrylate, ethyl acrylate, n-propyl acrylate, n-butyl acrylate, isobutyl acrylate, n-pentyl acrylate, isoamyl acrylate, n-hexyl acrylate, 2-methylpentyl acrylate, n-octyl acrylate, 2-ethylhexyl acrylate, n-decyl acrylate, n-dodecyl acrylate or n-octadecyl acrylate.
Claim 22
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (E) component is 20-49.9% by weight.
Claim 23
Dependent Claim
39 words
A rubber laminate according to Claim 1, wherein the (F) component is an ester represented by general formula (ii): wherein R² is an alkyl group of 1-12 carbon atoms and R³ is an alkylene group of 1-12 carbona atoms.
Claim 24
Dependent Claim
32 words
A rubber laminate according to Claim 23, wherein the ester of general formula (ii) is 2-methoxyethyl acrylate, 2-ethoxyethyl acrylate, 2-(n-propoxy)ethyl acrylate, 2-(n-butoxy)ethyl acrylate, 3-methoxypropyl acrylate, 3-ethoxypropyl acrylate, 2-(n-propoxy)propyl acrylate or 2-(n-butoxy)propyl acrylate.
Claim 25
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (F) component is 50-70% by weight.
Claim 26
Dependent Claim
20 words
A rubber laminate according to Claim 1, wherein the (G) component is allyl glycidyl ether, glycidyl methacrylate or glycidyl acrylate.
Claim 27
Dependent Claim
18 words
A rubber laminate according to Claim 1, wherein the proportion of the (G) component is 0.4-1.5% by weight.
Claim 28
Dependent Claim
13 words
A rubber laminate according to Claim 1, wherein the (H) component is acrylonitrile.
Claim 29
Dependent Claim
21 words
A rubber laminate according to Claim 1, wherein the proportion of the (H) component is not more than 10% by weight.
Claim 30
Dependent Claim
64 words
A rubber laminate according to Claim 1, wherein the plasticizer in the rubber compound (b) is a phthalic acid derivative compound, a tetrahydrophthalic acid derivative compound, an adipic acid derivative compound, an azelaic acid derivative compound, a sebacic acid derivative compound, a fatty acid derivative compound, a phosphoric acid derivative compound, a glycol derivative compound, a glycerine derivative compound or an epoxy derivative compound.
References Cited (Backward Citations)
No citation records indexed.
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