Method for making polyester resin foam by spraying
US4525487A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1983 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Aug 11, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A spray method for making cured polyester resin foam is provided using a liquid unsaturated polyester resin, a sulfonyl hydrazide, an effective amount of a promoter, an effective amountof a catalyst and 0.005-3 parts quaternary ammonium salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.