EP0370463A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Two pack type curable composition comprising epoxy resin and silicon-containing elastomeric polymer
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1989-11-21
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Granted: —
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Expires: 2009-11-21
Abstract
Abstract A two-pack type curable composition comprising: A. a first liquid containing an organic elastomeric polymer having at least one silicon-containing reactive group in a molecule and a curing agent for an epoxy resin, and B. a second liquid containing an epoxy resin, at least one organic tin compound selected from the group consisting of compounds of the formulae: R1/2Sn(OCOR<2>)2 (I) and <CHEM> wherein R<1> is a monovalent hydrocarbon group, and R<2> is a monovalent aliphatic hydrocarbon group having 7 to 19 carbon atoms, and an inorganic filler, which composition has good storage stability. k
Inventors
- 👤 Michihide Homma
- 👤 Atsuko Yoshihara
- 👤 Hiroshi Wakabayashi
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 22:35
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/681; C08G59/685; C08L; C08L101/00; C08L101/02; C08L101/10; C08L43/00; C08L43/04; C08L63/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
112 words
A two-pack type curable composition comprising: A. a first liquid containing an organic elastomeric polymer having, in a molecule, at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage and a curing agent for an epoxy resin, and B. a second liquid containing an epoxy resin, at least one organic tin compound selected from the group consisting of compounds of the formulae: R½ Sn(OCOR²)₂ (I) and wherein R¹ is a monovalent hydrocarbon group, and R² is a monovalent aliphatic hydrocarbon group having 7 to 19 carbon atoms, and an inorganic filler.
Claim 2
Dependent Claim
112 words
A two-pack type curable composition comprising: A. a first liquid containing an organic elastomeric polymer having, in a molecule, at least one silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage and a curing agent for an epoxy resin, and B. a second liquid containing an epoxy resin, at least one organic tin compound selected from the group consisting of compounds of the formulae: R½ Sn(OCOR²)₂ (I) and wherein R¹ is a monovalent hydrocarbon group, and R² is a monovalent aliphatic hydrocarbon group having 7 to 19 carbon atoms, and an inorganic filler.
Claim 3
Dependent Claim
33 words
The two-pack type curable composition according to claim 1, wherein the organic elastomeric polymer has a backbone comprising the repeating units of the formula -R-O- in which R is a C₂-C₄ alkylene group.
Claim 4
Dependent Claim
15 words
The two-pack type curable composition according to claim 2, wherein the backbone comprises polypropylene oxide.
Claim 5
Dependent Claim
132 words
The two-pack type curable composition according to claim 1, wherein the silicon-containing group to the silicon atom of which a hydroxyl group and/or a hydrolyzable group are bonded and which is cross linkable through formation of a siloxane linkage is represented by the formula: wherein X is a hydroxyl group or a hydrolyzable group, R³ is a monovalent hydrocarbon group having 1 to 20 carbon atoms or a triorganosiloxy group of the formula: R 4 3 -Si-O- in which R⁴ is a monovalent hydrocarbon group having 1 to 20 carbon atoms, "a" is 0, 1, 2 or 3, "b" is 0, 1 or 2 provided that the total of "a" and "b" is at least 1, preferably from 1 to 4, and "m" is 0 or an integer of 1 to 18.
Claim 6
Dependent Claim
23 words
The two-pack type curable composition according to claim 1, wherein the organic elastomeric polymer has a molecular weight of from 500 to 50,000.
Claim 7
Dependent Claim
27 words
The two-pack type curable composition according to claim 1, wherein a weight ratio of the epoxy resin to the organic elastomeric polymer is from 100:1 to 1:100.
Claim 8
Dependent Claim
35 words
The two-pack type curable composition according to claim 1, wherein an amount of the curing agent for the epoxy resin is from 0.1 to 300 parts by weight per 100 parts of the epoxy resin.
Claim 9
Dependent Claim
33 words
The two-pack type curable composition according to claim 1, wherein the organic tin compound is at least one selected from the group consisting of (C₂H₅)₂Sn(OCOC₇H₁₅)₂, [(C₂H₅)₂SnOCOC₇H₁₅]₂O, (C₄H₉)₂Sn(OCOC₇H₁₅)₂, [(C₄H₉)₂SnOCOC₇H₁₅]₂O, (C₄H₉)₂Sn(OCOC₁₁H₂₃)₂, [(C₄H₉)₂SnOCOC₁₁H₂₃]₂O, (C₄H₉)₂Sn(OCOC₁₉H₃₉)₂, and [(C₄H₉)₂SnOCOC₁₉H₃₉]₂O.
Claim 10
Dependent Claim
33 words
The two-pack type curable composition according to claim 1, wherein an amount of the organic tin compound is from 0.1 to 20 parts by weight per 100 parts of the organic elastomeric polymer.
References Cited (Backward Citations)
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