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US5364923A
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Organopolysiloxane graft epoxy resins and a method for the preparation thereof
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1993-09-28
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Granted: 1994-11-15
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Expires: 2013-09-28
Abstract
Abstract The present invention relates to an organopolysiloxane graft epoxy resin comprising a reaction product of (A) an epoxy resin having at least two epoxy groups in its molecule and (B) an amino modified polyorganosiloxane. The compositions of the present invention are characterized by superior surface lubricity after curing, superior release properties, and superior water repellency. The present invention also relates to a method of making an organopolysiloxane graft epoxy resin.
Inventors
- 👤 Ryozo Mikami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:52
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4085; C08G77/00; C08G77/42
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
53 words
A composition comprising a reaction product of: (A) an epoxy resin having at least two epoxy groups in its molecule; and (B) an organopolysiloxane having the general formula ##STR6## wherein R and R 1 represent monovalent hydrocarbon radicals, R 2 represents a divalent hydrocarbon radical, and n represents a number greater than 3.
Claim 2
Dependent Claim
53 words
A composition comprising a reaction product of: (A) an epoxy resin having at least two epoxy groups in its molecule; and (B) an organopolysiloxane having the general formula ##STR6## wherein R and R 1 represent monovalent hydrocarbon radicals, R 2 represents a divalent hydrocarbon radical, and n represents a number greater than 3.
Claim 3
Dependent Claim
14 words
A composition according to claim 1, wherein the composition further comprises (C) a solvent.
Claim 4
Dependent Claim
23 words
A composition according to claim 2, wherein the solvent is selected from the group consisting of aromatic hydrocarbons, ethers, and acetic acid esters.
Claim 5
Dependent Claim
21 words
A composition according to claim 3, wherein the aromatic hydrocarbons are selected from the group consisting of benzene, toluene, and xylene.
Claim 6
Dependent Claim
20 words
A composition according to claim 3, wherein the ethers are selected from the group consisting of diethyl ether and tetrahydrofuran.
Claim 7
Dependent Claim
23 words
A composition according to claim 3, wherein the acetic acid esters are selected from the group consisting of ethyl acetate and Cellosolve acetate.
Claim 8
Dependent Claim
28 words
A composition according to claim 1, wherein R and R 1 are selected from the group consisting of alkyl groups, aryl groups, aralkyl groups, and hydrocarbon halide groups.
Claim 9
Dependent Claim
22 words
A composition according to claim 7, wherein the alkyl groups are selected from the group consisting of methyl, ethyl, propyl, and butyl.
Claim 10
Dependent Claim
21 words
A composition according to claim 7, wherein the aryl groups are selected from the group consisting of phenyl, tolyl, and xylyl.
Claim 11
Dependent Claim
20 words
A composition according to claim 7, wherein the aralkyl groups are selected from the group consisting of benzyl and phenethyl.
Claim 12
Dependent Claim
21 words
A composition according to claim 7, wherein the hydrocarbon halide groups are selected from the group consisting of chloromethyl and 1,1,1-trifluoropropyl.
Claim 13
Dependent Claim
13 words
A composition according to claim 1, wherein R 2 is an alkylene group.
Claim 14
Dependent Claim
24 words
A composition according to claim 12, wherein the alkylene group is selected from the group consisting of ethylene, propylene, pentylene, phenylene, and cyclohexylene groups.
Claim 15
Dependent Claim
16 words
A composition according to claim 1, wherein n has a value of from 3 to 200.
Claim 16
Independent Claim
71 words
A method of making an organopolysiloxane graft epoxy resin comprising (I) mixing: (A) an epoxy resin having at least two epoxy groups in its molecule; and (B) an organopolysiloxane having the general formula ##STR7## wherein R and R 1 represent monovalent hydrocarbon radicals, R 2 represents a divalent hydrocarbon radical, and n represents a number greater than 3; and (II) heating the mixture of (I) at a temperature above room temperature.
Claim 17
Independent Claim
71 words
A method of making an organopolysiloxane graft epoxy resin comprising (I) mixing: (A) an epoxy resin having at least two epoxy groups in its molecule; and (B) an organopolysiloxane having the general formula ##STR7## wherein R and R 1 represent monovalent hydrocarbon radicals, R 2 represents a divalent hydrocarbon radical, and n represents a number greater than 3; and (II) heating the mixture of (I) at a temperature above room temperature.
Claim 18
Dependent Claim
19 words
A method according to claim 15, wherein the method further comprises adding a solvent to the mixture of (I).
Claim 19
Dependent Claim
20 words
A method according to claim 15, wherein the mixture of (I) is heated at a temperature ranging from 60°-200° C.
Claim 20
Dependent Claim
23 words
A method according to claim 16, wherein the solvent is selected from the group consisting of aromatic hydrocarbons, ethers, and acetic acid esters.
Claim 21
Dependent Claim
28 words
A method according to claim 15, wherein R and R 1 are selected from the group consisting of alkyl groups, aryl groups, aralkyl groups, and hydrocarbon halide groups.
Claim 22
Dependent Claim
13 words
A method according to claim 15, wherein R 2 is an alkylene group.
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