Claims
- 1. Polyepoxide-polysiloxanes characterised in that they contain units of the formula I ##STR24## in which Z denotes a n-valent radical of a polycarboxylic acid or of an acid polyester, Q denotes an aliphatic, cycloaliphatic, heterocyclic or aromatic epoxide-containing group in which the two oxygen atoms bonded to Q in the formula I are in adjacent positions to one another, R.sub.1 and R.sub.2 independently of one another denote an alkyl, alkenyl, aralkyl, aryl, cycloalkyl, alkoxy or aryloxy group or an epoxide-containing polysiloxane chain, m denotes a number greater than 1 and n denotes 2 or 3.
- 2. Polyepoxide-polysiloxane compounds according to Claim 1, characterised in that n in the formula I denotes 2 and that the polyepoxide-polysiloxane compounds possess recurring units of the formula II ##STR25##
- 3. Polyepoxide-polysiloxane compounds according to claim 2, characterised in that Z denotes the radical of a polyester from an aliphatic or cycloaliphatic dicarboxylic acid and a diol.
- 4. Polyepoxide-polysiloxane compounds according to claim 3, characterised in that Z represents the radical of an aliphatic polyester with at least 8 carbon atoms in the recurring structural unit, and having a melting point of 50.degree. to 140.degree. C.
- 5. Polyepoxide-polysiloxane compounds according to claim 4, characterised in that Z denotes the radical of a polyester from x mols of a dicarboxylic acid and (x-1) mols of a diol, with x representing a number from 2 to 50.
- 6. Polyepoxide-polysiloxane compounds according to one of claims 1, characterised in the R.sub.1 and R.sub.2 in the formula I independently of one another denote an alkyl or alkoxy group with 1 to 4 carbon atoms, an aralkyl group with 7 to 10 carbon atoms, a phenyl group, a phenoxy group or a cyclohexyl group.
- 7. Polyepoxide-polysiloxane compounds according to one of claims 1, characterised in that m in the formula I represents a number from 2 to 30, preferably 6 to 15.
- 8. Polyepoxide-polysiloxane compounds according to one of claims 1, characterised in that Q in the formula I represents a cycloaliphatic group possessing an epoxide group.
- 9. Polyepoxide-polysiloxane compounds according to claim 8, characterised in that Q represents the 3-(3',4'-epoxycyclohexyl)-2,4-dioxaspiro(5.5)undecylene-(8,9) radical.
- 10. Curable mixtures which are suitable for the manufacture of mouldings or coatings, characterised in that they contain a) polyepoxide-polysiloxanes according to claims 1 and b) curing agents for epoxide resins, such as polyamines or polycarboxylic acid anhydrides.
Priority Claims (1)
Number |
Date |
Country |
Kind |
15486/71 |
Oct 1971 |
CH |
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Parent Case Info
This is a continuation of application Ser. No. 299,537, filed on Oct. 20, 1972, which application is now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (4)
Number |
Date |
Country |
559,238 |
Jun 1958 |
CA |
662,941 |
May 1963 |
CA |
4,538,428 |
Dec 1970 |
JA |
385,492 |
Mar 1965 |
CH |
Continuations (1)
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Number |
Date |
Country |
Parent |
299537 |
Oct 1972 |
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