Patent US4001535A successfully refreshed from Google Patents.
Patent US5356719A successfully refreshed from Google Patents.
US5356719A
Expired / Lapsed
US
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Fluorosilicone release agent composition
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1993-12-02
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Granted: 1994-10-18
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Expires: 2013-12-02
Abstract
Abstract There is disclosed a fluorosilicone composition which, when cured onto a substrate such as paper, provides a surface which readily releases such tacky materials as silicone pressure-sensitive adhesive, said composition comprising (A) 100 parts by weight of an organopolysiloxane that contains in each molecule at least 1 fluorine-containing organic group and at least 2 alkenyl groups; (B) 0.1 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least 2 silicon-bonded hydrogen atoms in each molecule; (C) 0.01 to 20 parts by weight of an organopolysiloxane that contains in each molecule at least 1 fluorine-containing organic group, with the proviso that said organopolysiloxane (C) contains neither alkenyl groups nor silicon-bonded hydrogen groups; and (D) a catalytic amount of a hydrosilylation catalyst.
Inventors
- 👤 Yuji Hamada
- 👤 Keiichi Shimoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/08; C09; C09D; C09D183/00; C09D183/04; C09D183/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
93 words
A composition comprising: (A) 100 parts by weight of an organopolysiloxane that contains in each molecule at least 1fluorine-containing organic group and at least 2 alkenyl groups; (B) 0.1 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least 2 silicon-bonded hydrogen atoms in each molecule; (C) 0.01 to 20 parts by weight of an organopolysiloxane that contains in each molecule at least 1 fluorine-containing organic group, with the proviso that said organopolysiloxane (C) contains neither alkenyl groups nor silicon-bonded hydrogen groups; and (D) a catalytic amount of a hydrosilylation catalyst.
Claim 2
Dependent Claim
93 words
A composition comprising: (A) 100 parts by weight of an organopolysiloxane that contains in each molecule at least 1fluorine-containing organic group and at least 2 alkenyl groups; (B) 0.1 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least 2 silicon-bonded hydrogen atoms in each molecule; (C) 0.01 to 20 parts by weight of an organopolysiloxane that contains in each molecule at least 1 fluorine-containing organic group, with the proviso that said organopolysiloxane (C) contains neither alkenyl groups nor silicon-bonded hydrogen groups; and (D) a catalytic amount of a hydrosilylation catalyst.
Claim 3
Dependent Claim
58 words
The composition according to claim 1, wherein said fluorine-containing organic groups are independently selected from the group consisting of groups having the formula C.sub.n F.sub.2n+1 --R--, groups having the formula C.sub.n F.sub.2n+1 --R--O--R-- groups with the general formula ##STR2## wherein R is a divalent hydrocarbon group and n is an integer having a value of 1 to 20.
Claim 4
Dependent Claim
42 words
The composition according to claim 2, wherein said organopolysiloxane (A) is selected from the group consisting of dimethylvinylsiloxy-terminated methyl(3,3,3-trifluoropropyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-terminated methyl(perfluorohexylethyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorohexylethyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane copolymers, silanol-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane-methylvinylsiloxane copolymers, and dimethylhexenylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane-methylhexenylsiloxane copolymers.
Claim 5
Dependent Claim
30 words
The composition according to claim 2, wherein said organopolysiloxane (C) is selected from the group consisting of trimethylsiloxy-terminated methyl(3,3,3-trifluoropropyl)siloxane-dimethylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorohexylethyl)siloxane-dimethylsiloxane copolymers, and silanol-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane copolymers.
Claim 6
Dependent Claim
30 words
The composition according to claim 3, wherein said organopolysiloxane (C) is selected from the group consisting of trimethylsiloxy-terminated methyl(3,3,3-trifluoropropyl)siloxane-dimethylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane copolymers, trimethylsiloxy-terminated methyl(perfluorohexylethyl)siloxane-dimethylsiloxane copolymers, and silanol-terminated methyl(perfluorobutylethyl)siloxane-dimethylsiloxane copolymers.
Claim 7
Dependent Claim
30 words
The composition according to claim 1, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 8
Dependent Claim
30 words
The composition according to claim 2, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 9
Dependent Claim
30 words
The composition according to claim 3, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 10
Dependent Claim
30 words
The composition according to claim 4, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 11
Dependent Claim
30 words
The composition according to claim 5, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 12
Dependent Claim
23 words
The composition according to claim 2, wherein the fluorine-containing organic groups of said organopolysiloxane (A) and of said organopolysiloxane (C) are perfluorobutylethyl radicals.
Claim 13
Dependent Claim
30 words
The composition according to claim 11, wherein from 1 to 10 parts by weight of said organopolysiloxane (C) are present for each 100 parts by weight of said organopolysiloxane (A).
Claim 14
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 1.
Claim 15
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 2.
Claim 16
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 5.
Claim 17
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 6.
Claim 18
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 7.
Claim 19
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 10.
Claim 20
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 11.
Claim 21
Dependent Claim
15 words
A release liner construction comprising a substrate coated with the cured composition of claim 12.
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