Reinforced polyesters, article thereof and method of making low warpage articles
US4874809A · kind A · utility
4Cited by
17References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/0373
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A glass fiber and mica-reinforced polyester composition useful in the production of shaped articles of low warpage is provided by blending PA0 (a) about 55% to about 99%, based on total polyester weight, of poly(ethylene terephthalate), PA0 (b) about 1% to about 45%, based on total polyester weight, of poly(cyclohexane-dimethylene terephthalate), PA0 (c) about 5% to about 50%, based on the total weight of the composition, of glass fibers, and PA0 (d) about 5% to about 50%, based on the total weight of the composition, of mica the total glass fiber and mica weight being less than 75% based on the total weight of the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.