Colorants for use in opacified thermoplastic resins
US5240980A · kind A · utility
21Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | May 22, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An opacified, semi-crystalline thermoplastic resin composition is provided having a poly(alkyleneoxy) substituted organic chromophore distributed throughout in an amount sufficient to color the resin. The resin composition is particularly useful for molding parts with strict dimensional tolerances as shrinkage of the molded part is minimal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.