EP0378420A2
Expired / Lapsed
EP
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Fluorosilicone compounds and compositions for adhesive release liners
Assignee: Dow Silicones Corp
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Filing: 1990-01-11
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Granted: —
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Expires: 2010-01-11
Abstract
Abstract A new organohydrogenpolysiloxane compound and a new fluorosilicone polymer each have unique properties which allow for the preparation of faster curing coating compositions having longer bath life than those disclosed in the art. In a preferred embodiment the new polymers are mixed together to provide, along with a metal-containing hydrosilylation catalyst and a catalyst inhibitor to provide improved coating compositions which are useful for preparing a release liner to protect silicone pressure sensitive adhesives.
Inventors
- 👤 Craig Kim Kendziorski
- 👤 Charles Ervin Neal
- 👤 Loretta Ann Sobieski
- 👤 Thomas John Tangney
- 👤 David Leroy Stickles
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:00
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/04; C08G77/22; C08G77/24; C09; C09D; C09D183/00; C09D183/04; C09D183/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
A fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units.
Claim 2
Dependent Claim
98 words
A fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units.
Claim 3
Dependent Claim
179 words
A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B′) an organohydrogenpolysiloxane compound, compatible with (A), having an average of at least two silicon-bonded hydrogen atoms per molecule with the hydrogen radicals being bonded to separate silicon atoms, the quantities of (A) and (B′) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every vinyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
Claim 4
Dependent Claim
179 words
A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B′) an organohydrogenpolysiloxane compound, compatible with (A), having an average of at least two silicon-bonded hydrogen atoms per molecule with the hydrogen radicals being bonded to separate silicon atoms, the quantities of (A) and (B′) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every vinyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
Claim 5
Dependent Claim
76 words
An organohydrogenpolysiloxane compound having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃, wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms.
Claim 6
Dependent Claim
76 words
An organohydrogenpolysiloxane compound having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃, wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms.
Claim 7
Dependent Claim
226 words
A curable coating composition comprising: (A′) a fluorosilicone polymer having the formula AMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeASiO) z SiMe₂A, wherein A denotes an alkenyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 2 to 8 carbon atoms, Q denotes a divalent hydrocarbon radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 5 mol percent (RQ)MeSiO 2/2 siloxane units and 0.1 to 10 mol percent alkenyl radical-containing siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A′), having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃, wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A′) and (B) being sufficient to provide from 1 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
Claim 8
Dependent Claim
226 words
A curable coating composition comprising: (A′) a fluorosilicone polymer having the formula AMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeASiO) z SiMe₂A, wherein A denotes an alkenyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 2 to 8 carbon atoms, Q denotes a divalent hydrocarbon radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 5 mol percent (RQ)MeSiO 2/2 siloxane units and 0.1 to 10 mol percent alkenyl radical-containing siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A′), having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃, wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A′) and (B) being sufficient to provide from 1 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
Claim 9
Dependent Claim
230 words
A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein A denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A), having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃ wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A) and (B) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
Claim 10
Dependent Claim
230 words
A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe₂SiO(Me₂SiO) x {(RQ)MeSiO} y (MeViSiO) z SiMe₂Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein A denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms and the values of x , y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical- containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A), having the formula Me₃SiO(MeHSiO) m {(RQ)MeSiO} n SiMe₃ wherein m + n has a value of from 20 to 80, m /( m + n ) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A) and (B) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.
References Cited (Backward Citations)
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