Multilayer structure with acrylic cap layer, polyolefin core layer, and intermediate tie layer
US6455171B2 · kind B2 · utility
23Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2001 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Feb 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a multilayer thermoformable structure including: (A) a cap layer including at least 50% by weight of a polymethacrylate ester or polyacrylate ester or their copolymers or blends; (B) a core layer including at least 30% by weight polyolefin; and (C) a tie layer intermediate the cap layer (A) and core layer (B). The multilayer thermoformable structures of the invention are useful in applications requiring the physical properties of an olefin and the gloss, scratch resistance and chemical resistance of an acrylic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.