Simultaneous expansion and cure of polyester resin composition
US4322502A · kind A · utility
10Cited by
3References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1980 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Sep 11, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Unsaturated polyester resin in solution in ethylenically unsaturated copolymerizable monomer is moved with peroxide catalyst, organometallic promoter and certain hydrazine-type or hydrazone compounds. The liquid mixture expands and cures to provide a solid foamed resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.