Claims
- 1. A foamable composition comprising an unsaturated polyester containing a promoter selected from the group consisting of a tertiary amine, a cobalt salt and a mixture thereof and a curing catalyst and a blowing agent comprising a quaternary ammonium borohydride of the formula: ##STR5## where R.sup.1, R.sup.2 and R.sup.3 may be the same or different and each is selected from alkyl, alkenyl, cycloalkyl, aryl, alkaryl and aralkyl groups and R.sup.4 is selected from alkyl or alkenyl groups having from 1 to 30 carbon atoms.
- 2. A foamable composition comprising an unsaturated polyester containing a promoter selected from the group consisting of a tertiary amine, a cobalt salt and a mixture thereof and a curing catalyst and a blowing agent comprising a quaternary ammonium borohydride of the formula: ##STR6## in which R.sup.1 and R.sup.2 are methyl groups, R.sup.3 is a benzyl group and R.sup.4 is an alkyl or alkenyl group having 6 to 20 carbon atoms.
- 3. A foamable composition according to claim 1, wherein the borohydride comprises a mixture of n-alkyl (50% C.sub.14, 40% C.sub.12, 10% C.sub.16) dimethyl benzyl ammonium borohydrides.
- 4. A foamable composition according to claim 1, wherein the borohydride comprises a mixture of n-alkyl (60% C.sub.14, 30% C.sub.16, 5% C.sub.12, 5% C.sub.18) dimethyl benzyl ammonium borohydrides.
- 5. A foamable composition according to claim 1, wherein the borohydride is trimethyl hexadecyl amine borohydride.
Priority Claims (1)
Number |
Date |
Country |
Kind |
443118 |
Dec 1983 |
CAX |
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CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of our application Ser. No. 607,047, filed May 4, 1984, now U.S. Pat. No. 4,507,406.
US Referenced Citations (9)
Continuation in Parts (1)
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Number |
Date |
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Parent |
607047 |
May 1984 |
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