Claims
- 1. A composition comprising
- A) a liquid copolymer based on butadiene and at least one polar, ethylenically unsaturated comonomer, and
- B) a capped prepolymer of formula I: ##STR13## wherein m is 1 or 2, n is 2 to 6, X is --O--, --S-- or --NR.sup.3 --, Y is a radical selected from the group comprising --OH, --NHR.sup.3, --OH reacted with a cyanogen halide to introduce --OCN, --OH reacted with an epichlorohydrin to introduce ##STR14## and --OH reacted with an epichlorohydrin to introduce an epoxide which is reacted with potassium thiocyanate or thiourea to introduce ##STR15## and ##STR16## R.sup.1 is a radical of a polyether prepolymer with hydroxyl, mercapto or amino end groups or of a segmented polyester, polythioester or polyamide prepolymer with hydroxyl, mercapto or amino end groups, containing at least 30 mol %, based on the said segmented prepolymer, of polyether segments after removal of the terminal functional groups, R.sup.2 is a carbocyclic aromatic or araliphatic radical of valency m+1 with groups Y bonded directly to the aromatic ring, R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl or phenyl and R.sup.4 is methyl or hydrogen.
- 2. A composition according to claim 1, wherein component A) is a liquid butadiene/acrylonitrile copolymer.
- 3. A composition according to claim 1 in which R.sup.1 is a polyalkylene glycol radical with hydroxyl, mercapto or amino end groups, after removal of the end groups.
- 4. A composition according to claim 3 in which the polyalkylene glycol radical is a polypropylene glycol or a polybutylene glycol radical.
- 5. A composition according to claim 1 in which n is 2 or 3 and m is 1.
- 6. A composition according to claim 1 in which X is --O--, --S-- or --NH--.
- 7. A composition according to claim 1 in which Y is --NH.sub.2, --OH, --OCN, ##STR17##
- 8. A composition according to claim 6 in which Y is --OH, --OCN, ##STR18##
- 9. A composition according to claim 1 in which R.sup.2 is a radical of formula IVa, IVb or IVc: ##STR19## wherein R.sup.7 is C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkoxy, halogen or phenyl, p is an integer from 0 to 3, q is 1, 2 or 3 and Q is a direct bond, --C.sub.q H.sub.2q --, --O--, --S--, --SO.sub.2 --, --CO-- or --C(CF.sub.3).sub.2 --.
- 10. A composition according to claim 9 in which p is 0 or 1, q is 1 or 2 and Q is --CH.sub.2 -- or --C(CH.sub.3).sub.2 --.
- 11. A composition according to claim 1 in which m is 1, n is 2 or 3, R.sup.1 is a radical of a polyalkylene glycol with hydroxyl, mercapto or amino end groups, after removal of the functional groups, and R.sup.2 is a radical of formula IVd, IVe, IVf or IVg: ##STR20##
- 12. A compound of formula I according to claim 1 in which Y is --OCN or ##STR21## and R.sup.4 is as defined in claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2869/88 |
Jul 1988 |
CHX |
|
Parent Case Info
This is a divisional of Ser. No. 384,958 filed Jul. 25, 1989, now U.S. Pat. No. 5,073,601.
US Referenced Citations (11)
Foreign Referenced Citations (8)
Number |
Date |
Country |
28493 |
Nov 1972 |
AUX |
247476 |
Dec 1987 |
EPX |
247483 |
Dec 1987 |
EPX |
251792 |
Jan 1988 |
EPX |
275186 |
Jul 1988 |
EPX |
1222076 |
Aug 1966 |
DEX |
2910020 |
Sep 1979 |
DEX |
1017612 |
Jan 1966 |
GBX |
Non-Patent Literature Citations (2)
Entry |
Chem. Abst. 89-094899/13. |
Org. Coat Plast. Chem. vol. 40, pp. 899-902. |
Divisions (1)
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Number |
Date |
Country |
Parent |
384958 |
Jul 1989 |
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