Multipurpose additive system for thermoplastic resins
US5204402A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1990 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Dec 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2995
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A multipurpose additive system comprising PA1 (a) an alkali metal zeolite, an alkaline earth metal zeolite, zinc zeolite, or mixtures thereof; PA1 (b) PA2 (i) an aliphatic compound containing at least six carbon atoms substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01; or PA2 (ii) a polydimethylsiloxane compound containing from 4 to about 500 siloxane units, substituted with one or more polar functional groups sufficient to provide a polar group frequency factor of at least about 0.01; or PA2 (iii) mixtures thereof in any proportion; and PA1 (c) optionally, zinc oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.