Gloss resins and method for making same
US8603639B2 · kind B2 · utility
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13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jun 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure is directed to polymeric compositions which form gloss resins suitable for thermoforming applications. The polymeric compositions include a reaction product composed of a clarified random propylene/α-olefin copolymer, a coupling agent, and optionally an elastomer. Methods for adjusting the melt flow rate of the gloss resin are also disclosed. Adjustment of the gloss resin melt flow rate advantageously enables scrap thermoplastic material containing the gloss resin to be recycled in a thermoforming operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.