Light-stabilized polymeric articles and methods of making the same
US6867266B2 · kind B2 · utility
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18References
14Claims
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Key dates
| Filing date | Jun 4, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/51
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of making thermoformable articles is disclosed. The method includes mixing one or more light-stabilized polymers having a high concentration of light-stabilizing moieties covalently bonded along the polymer chain with one or more additional polymeric materials, which are substantially free from light-stabilizing moieties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.