Anti-skid sheet for thermoformed articles
US8343613B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2008 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Apr 17, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31917
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed in one aspect is an anti-skid sheet comprising at least one contact layer selected from the group consisting of dynamically vulcanized alloys, propylene-α-olefin copolymers, and blends thereof; and at least one substrate layer comprising polyethylene having a density of from greater than 0.935 g/cm3. In one embodiment, the dynamically vulcanized alloy comprises a blend of one or more polyolefins and an at least partially vulcanized rubber. Disclosed in another aspect is a method of forming the anti-skid sheet comprising providing a melt-blending extruder for each of the sheet layers, at least one substrate layer as disclosed herein and at least one contact layer as disclosed herein, and co-extruding a melt of each component to form a co-extruded sheet. In a particular embodiment, the anti-skid sheet is thermoformed to form an article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.