Controlled geometry composite micro pellets for use in compression molding
US9000084B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Controlled geometry pellets, which have at least one generally flat face having a cross-sectional shape with a rectangular envelope having an aspect ratio of at least 1.5, are provided. The controlled geometry pellets may include a plurality of reinforcing particulates dispersed throughout the thermoplastic resin. The reinforcing particulates typically have a largest dimension which is no more than about 90% of the largest pellet dimension. Compression molding methods of manufacturing a shaped article using the pellets are also provided. The methods include compression molding thermoplastic resin-based material to provide a molded article, where thermoplastic resin-based material comprises a plurality of the controlled geometry pellets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.