Olefin-polyamide thermoplastic alloy and process for making the same
US6670421B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Oct 29, 2021 |
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 thermoplastic polyamide. The polyamide 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 polyamide concentration proximate the outwardly oriented surface and distinctive regions of elevated olefinic polymeric concentration proximate to interior regions of the workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.