EP0166900A2
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EP
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Polyorganosiloxane-based graft copolymer and process for producing same
Assignee: Mitsubishi Chemical Corp
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Filing: 1985-04-29
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Granted: —
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Expires: 2005-04-29
Abstract
Abstract A polyorganosiloxane-based graft copolymer superior in impact resistance, light resistance, surface gloss, and color fastness, produced by graft-polymerizing at least one vinyl monomer on a polyorganosiloxane consisting of 90 to 99.999 mole % of an organosiloxane having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; and n denotes a number of 0, 1, or 2; and 10 to 0.001 mole % of an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; the graft copolymer containing the polyorganosiloxane in an amount of 1 to 70% by weight; and a process for producing the graft copolymer.
Inventors
- 👤 Isao Sasaki
- 👤 Akira Yanagase
- 👤 Yanusori Kawachi
- 👤 Tetsuya Mayuzumi
- 👤 Toshio Oba
- 👤 Fumio Okada
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 21:14
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12; C08F283/124; C09; C09D; C09D151/00; C09D151/08; C09D151/085
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
A polyorganosiloxane-based graft copolymer produced by graft-polymerizing at least one vinyl monomer on a polyorganosiloxane consisting essentially of 90 to 99.999 mole % of an organosiloxane having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; and n denotes a number of 0, 1, or 2; and 10 to 0.001 mole % of an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hdyrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; said graft copolymer containing said polyorganosiloxane in an amount of 1 to 70% by weight.
Claim 2
Dependent Claim
114 words
A polyorganosiloxane-based graft copolymer produced by graft-polymerizing at least one vinyl monomer on a polyorganosiloxane consisting essentially of 90 to 99.999 mole % of an organosiloxane having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; and n denotes a number of 0, 1, or 2; and 10 to 0.001 mole % of an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hdyrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; said graft copolymer containing said polyorganosiloxane in an amount of 1 to 70% by weight.
Claim 3
Dependent Claim
95 words
A polyorganosiloxane-based graft copolymer according to Claim 1, wherein the polyorganosiloxane consists essentially of 90 to 99.9 mole % of an organosiloxane having a unit represented by the general formula, wherein R denotes hydrogen, methyl, ethyl, propyl or phenyl; and n denotes a number of 0, 1 or 2; and 10 to 0.1 mole % of an organosiloxane graft-linking agent having a unit represented by the general formula, wherein R denotes hydrogen, methyl, ethyl, propyl or phenyl; n denotes a number of 0, 1 or 2; and p denotes a number of 1 to 6.
Claim 4
Dependent Claim
42 words
A polyorganosiloxane-based graft copolymer according to Claim 1 or 2, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p is a number of 2 to 4 and R and n are as denoted in Claim 1.
Claim 5
Dependent Claim
40 words
A polyorganosiloxane-based graft copolymer according to Claim 1 or 2, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p is a number of 3 and R and n are as denoted in Claim 1.
Claim 6
Dependent Claim
28 words
A poiyorganosiloxane-based graft copolymer according to Claim 1, 2, 3 or 4, wherein the graft copolymer contains the polyorganosiloxane in an amount of 10 to 60% by weight.
Claim 7
Dependent Claim
58 words
A process for producing a polyorganosiloxane-based graft copolymer, which comprises graft-polymerizing a vinyl monomer onto a polyorganosiloxane by using an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6.
Claim 8
Dependent Claim
58 words
A process for producing a polyorganosiloxane-based graft copolymer, which comprises graft-polymerizing a vinyl monomer onto a polyorganosiloxane by using an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6.
Claim 9
Dependent Claim
44 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 6, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p is a number of 2 to 4 and R and n are as denoted in Claim 6.
Claim 10
Dependent Claim
42 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 6, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p is a number of 3 and R and n are as denoted in Claim 6.
Claim 11
Dependent Claim
62 words
A process for producing a polyorganosiloxane-based graft copolymer, which comprises; polycondensating an organosiloxane with an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; and graft-polymerizing a vinyl monomer onto the resulting polyorganosiloxane.
Claim 12
Dependent Claim
62 words
A process for producing a polyorganosiloxane-based graft copolymer, which comprises; polycondensating an organosiloxane with an organosiloxane graft-linking agent having a unit represented by the general formula wherein; R denotes hydrogen, methyl, ethyl, propyl, or phenyl; n denotes a number of 0, 1, or 2; and p denotes a number of 1 to 6; and graft-polymerizing a vinyl monomer onto the resulting polyorganosiloxane.
Claim 13
Dependent Claim
44 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 9, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p :s a number of 2 to 4 and R and n are as denoted in Claim 9.
Claim 14
Dependent Claim
42 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 9, wherein the organosiloxane graft-linking agent has a unit represented by the general formula, wherein p is a number of 3 and R and n are as denoted in Claim 9.
Claim 15
Dependent Claim
35 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 9, wherein the vinyl monomer for graft-polymerization is at least one selected from the group consisting of aromatic alkenyl compounds and vinyl cyanid compounds.
Claim 16
Dependent Claim
22 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 12, wherein the vinyl monomer for graft-polymerization is styrene and/or acrylonitrile.
Claim 17
Dependent Claim
26 words
A process for producing a polyorganosiloxane-based graft copolymer according to Claim 12, wherein the vinyl monomer for graft-polymerization is a monomer mixture of styrene and acrylonitrile.
References Cited (Backward Citations)
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