Sheet molding composition having controllable thickening
US5747607A · kind A · utility
6Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Jun 27, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/918
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A sheet molding composition is provided which exhibits controllable thickening. The composition includes a low molecular weight polyester in which some of the chain ends have been endcapped with functional groups which are unable to react with the thickeners employed in the sheet molding composition. The sheet molding composition has a low viscosity of from about 6 to about 20 million centipoise which allows molding at low pressures of from about 100 to about 300 psi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.