Olefin-based thermoplastic alloy, process for making the same and molded parts containing the same
US6870005B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymeric composition and process for making the same suitable for injection molding processes and procedures containing an olefinic polymer component selected from at least one a group which includes polyalkylenes, copolymers of polyalkylenes and a non-olefinic thermoplastic. The non-olefinic and olefinic polymeric components are present in random orientable locations in the initial polymeric composition. When injection molded against a temperature gradient, the resulting workpiece composed of the composition has distinctive regions of elevated non-olefinic concentration proximate the outwardly oriented surface and distinctive regions of elevated olefinic polymeric concentration proximate to interior regions of the workpiece. The non-olefinic thermoplastic may be at least one of thermoplastic polyamides, thermoplastic polyolefins and thermoplastic polycarbonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.