Thermosetting composition
US4948821A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1988 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Aug 18, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a thermosetting composition comprising PA0 A: 30-65 parts by weight of unsaturated polyester with a molar mass per double bond of 142-500 PA0 B: 25-55 parts by weight of ethylenically unsaturated monomer PA0 C: 3-35 parts by weight of slightly ethylenically unsaturated polyester PA0 D: 0-750 parts by weight of filler, fibrous material and, if so desired, other usual additives, characterized in that as as slight ethylenically unsaturated polyester an unsaturated polyester is used which has a molar mass per double bond of 1200-20,000 and an acid number of 5-50, and in which between 50 and 90% of the unsaturation consists of a terminal monoester of a .alpha., .beta.-unsaturated dicarboxylic acid. The composition presents little or no shrinkage in setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.