Weathering resistance of polymeric materials
US6689840B1 · kind B1 · utility
50Cited by
4References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/2296
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymeric material containing a halogen-containing polymer such as PVC, an inorganic hydroxide and, an acrylic material is described. The presence of the inorganic hydroxide provides a material of superior weathering resistance as compared to materials comprising halogen-containing polymers which do not contain hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.