EP0075191A1
Expired / Lapsed
EP
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Acrylic type self-adhesive
Assignee: Daikin Industries Ltd
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Filing: 1982-09-08
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Granted: —
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Expires: 2002-09-08
Abstract
Abstract An acrylic type self-adhesive which comprises a polymer comprising (a) units of at least one compound of the formula: wherein R' is a hydrogen atom or a methyl, ethyl or propyl group, 1 is an integer of 1 to 5, s is 0 or 1, and Rf is -(CF 2 ) m X or -(CF 2 ) p O(CF 2 ) n F (wherein m is an integer of 1 to 10, X is a hydrogen or fluorine atom or a hexafluoroisopropyl group, n is an integer of 1 to 5 and p is an integer of 1 to 3), and optionally units of (b) at least one compound of the formula: wherein R' is a hydrogen atom or a methyl, ethyl or propyl group and R' is -OH, -NH 2 , -NHCH 2 OH, -OCH 2 CH 2 OH, or -OCH 2 CH 2 N(CH 3 ) 2 , said polymer having an intrinsic viscosity of 0.1 to 1.0, which shows excellent oil resistance and water resistance.
Inventors
- 👤 Akira Ohmori
- 👤 Nobuyuki Tomihashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 08:43
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/14; C09J133/16; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J7/385; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
151 words
An acrylic type self-adhesive which comprises a polymer comprising units of (a) at least one compound of the formula: wherein R 1 is a hydrogen atom or a methyl, ethyl or propyl group, 1 is an integer of 1 to 5, s is 0 or 1, and Rf is -(CF 2 ) m X or -(CF 2 ) p (CF 2 ) n F (wherein m is an integer of 1 to 10, X is a hydrogen or fluorine atom or a hexafluoroisopropyl group, n is an integer of 1 to 5 and p is an integer of 1 to 3), and optionally (b) at least one compound of the formula: wherein R 2 is a hydrogen atom or a methyl, ethyl or propyl group and R 3 is -OH, -NH2, -NHCH 2 0H, -OCH 2 CH 2 OH, or -OCH2CH2N(CH3)2, said polymer having an intrinsic viscosity of 0.1 to 1.0.
Claim 2
Dependent Claim
151 words
An acrylic type self-adhesive which comprises a polymer comprising units of (a) at least one compound of the formula: wherein R 1 is a hydrogen atom or a methyl, ethyl or propyl group, 1 is an integer of 1 to 5, s is 0 or 1, and Rf is -(CF 2 ) m X or -(CF 2 ) p (CF 2 ) n F (wherein m is an integer of 1 to 10, X is a hydrogen or fluorine atom or a hexafluoroisopropyl group, n is an integer of 1 to 5 and p is an integer of 1 to 3), and optionally (b) at least one compound of the formula: wherein R 2 is a hydrogen atom or a methyl, ethyl or propyl group and R 3 is -OH, -NH2, -NHCH 2 0H, -OCH 2 CH 2 OH, or -OCH2CH2N(CH3)2, said polymer having an intrinsic viscosity of 0.1 to 1.0.
Claim 3
Dependent Claim
26 words
The self-adhesive according to claim 1, wherein the content of the units of the compound (a) in the polymer is at least 30 % by mole.
Claim 4
Dependent Claim
20 words
The self-adhesive according to claim 1, wherein the fluorine content of the polymer is at least 20 % by weight.
Claim 5
Dependent Claim
18 words
The self-adhesive according to claim 1, wherein the glass transition point of the polymer is -5°C or lower.
Claim 6
Dependent Claim
50 words
The self-adhesive according to claim 1 or claim 2, wherein the compound (a) is one selected from the group consisting of 2,2,3,3,3-pentafluoropropyl acrylate, 2,2,3,3,4,4,4-heptafluorobutyl acrylate, 2,2,3,4,4,4-hexafluorobutyl acrylate, 2,2,3,3,4,5,5,5-octafluoro-4-tri- fluoromethylpentyl acrylate, 5,5,6,6,7,7,7-heptafluoro-3-oxaheptyl acrylate, 2,2,3,3,3,5,5,5-heptafluoro-4-oxapentyl acrylate, 1,1-dihydrononafluoro-4-oxahexyl acrylate and 1,1-dihydroundecafluoro-4-oxaheptyl acrylate, and corresponding methacrylate, 2-ethylacrylate, 2-propylacrylate, fluoroacrylate, fluoromethacrylate, fluoro-2-ethylacrylate and fluoro- 2-propylacrylate.
Claim 7
Dependent Claim
31 words
The self-adhesive according to claim 1, wherein the compound (b) is one selected from the group consisting of acrylic acid, acrylamide, n-methylolacrylamide, methacrylic acid, methaacrylamide-2-ethylacrylic acid, 2-ethylacrylamide, 2-propylacrylic acid and 2-propylacrylamide.
References Cited (Backward Citations)
US3404117A
Cited
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