System and method for creating high gloss plastic items via the use of styrenic copolymers as a coextruded layer
US9289955B2 · kind B2 · utility
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13References
12Claims
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Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Dec 11, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.