EP0050249A2
Expired / Lapsed
EP
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A polymer composition having improved stability against moisture and its use
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1981-10-02
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Granted: —
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Expires: 2001-10-02
Abstract
Abstract A polymer composition containing a vinyl-type polymer tends to increase in viscosity and harden in the air due to moisture when the vinyl-type polymer contains silyl radicals and an unsaturated ethylenic monomer with polarity. This has prevented the wider use of these kinds of polymer compositions for paints, sealants, and coating materials. However, when mixed with a hydrolytic ester and/or an alkyl alcohol, the polymer solution can be stabilized to moisture, so long as the content of the unsaturated ethylenic monomer with polarity is in the range of 0.1 to 20% by weight.
Inventors
- 👤 Yasushi Kato
- 👤 Hisao Furukawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 07:28
CPC Classifications
C; C09; C09J; C09J143/00; C09J143/04; C08; C08F; C08F8/00; C08F8/42; C08K; C08K5/00; C09D; C09D143/00; C09D143/04; C08F230/00; C08F230/04; C08F230/08; C08F230/085; C08L; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
(1) A polymer composition having improved stability against moisture, comprising a vinyl-type copolymer, a hydrolytic ester, and/or an alkyl alcohol, in which the main chain of the vinyl-type copolymer is substantially made up from a vinyl polymer and in which the vinyl-type copolymer has at least one silyl radical and hydrolytic radical at end groups or in side chains of each molecule, and in which the vinyl-type copolymer contains 0.1 to 20 % by weight of an unsaturated ethylenic monomer as a copolymeric unit having at least one polar radical.
Claim 2
Dependent Claim
27 words
(2) A polymer composition as claimed in claim 1, in which the unsaturated ethylenic monomer contains an amido radical of a carboxylic acid as the polar radical.
Claim 3
Dependent Claim
23 words
(3) A polymer composition as claimed in claim 1, in which the unsaturated ethylenic monomer contains a carboxylic radical as the polar radical.
Claim 4
Dependent Claim
23 words
(4) A polymer composition as claimed in.claim 1, in which the unsaturated ethylenic monomer contains an acid anhydride radical as the polar radical.
Claim 5
Dependent Claim
23 words
(5) A polymer composition as claimed in claim 1, in which the unsaturated ethylenic monomer contains a hydroxyl radical as the polar radical.
Claim 6
Dependent Claim
16 words
(6) A polymer composition as claimed in claim 1, in which the hydrolytic ester is trialkylorthoformate.
Claim 7
Dependent Claim
19 words
(7) A polymer composition as claimed in claim 1, in which the hydrolytic ester is an organic silicone compound.
Claim 8
Dependent Claim
25 words
(8) A polymer composition as claimed in claim 1, in which the hydrolytic ester is a mixture of trialkylorthoformate and a hydrolytic organic silicone compound.
Claim 9
Dependent Claim
32 words
(9) A polymer composition as claimed in claim 1, in which 0.1 to 50 parts by weight of the hydrolytic ester are contained per 100 parts by weight of the vinyl-type copolymer.
Claim 10
Dependent Claim
24 words
(10) A polymer composition as claimed in claim 1, in which the alkyl alcohol has 1 to 10 carbon atoms in its alkyl moiety.
Claim 11
Dependent Claim
31 words
(11) A polymer composition as claimed in claim 1, in which 0.1 to 100 parts by weight of alkyl alcohol are contained per 100 parts by weight of the vinyl-type copolymer.
Claim 12
Dependent Claim
26 words
(12) A polymer composition as claimed in claim 1, in which the molecular weight of the vinyl-type copolymer is in the range of 1,000 to 30,000.
Claim 13
Dependent Claim
23 words
(13) Use of the polymer composition according to any of claims 1 to 12 in coating materials, especially in paints, and as adhesives.
References Cited (Backward Citations)
No citation records indexed.
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