Polyvinyl chloride resins and method of preparation and use in the production of whitened polyvinyl chloride foam
US6608115B2 · kind B2 · utility
1Cited by
5References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 21, 2003 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Jan 21, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyvinyl chloride resin compositions and methods of preparation and use thereof for increasing the degree of whiteness in finished polyvinyl chloride foam. The resin compositions contain sulfur compounds selected from sulfonic acid derivatives, sulfinic acid derivatives, and mercapto acetic acid sodium salt, and optionally contain water soluble salts and/or t-butyl hydroperoxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.