Formed articles from polyester resins
US6403728B1 · kind B1 · utility
1Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Articles from a polyester resin obtained by melt-shaping of the resin added with a polyfunctional compound, capable of increasing the molecular weight of the resin by addition reaction in the solid state with the end groups of the resin and by upgrading treatment of the article, so as to increase by at least 0.1 dl/g the intrinsic viscosity of the starting resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.