Low profile additives for unsaturated polyester resins
US4245068A · kind A · utility
9Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1977 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/921
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The shrinkage of a thermosettable composition comprising an unsaturated polyester and a vinyl monomer capable of cross-linking the polyester is reduced during cure by the addition to the composition of an alkylene oxide polymer which is soluble in the thermosettable composition but which is substantially less soluble in the cured thermoset composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.