Foamed article of thermoplastic resin composition and process for producing it
US6730248B2 · kind B2 · utility
1Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | May 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249993
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process is provided for producing a foamed article of a thermoplastic resin composition having a relatively thicker solid skin layer exhibiting better appearance without occurrence of a swirl mark and having a foam structure of relatively uniform foam cell size with better foam cell configuration, which is light-weighing and superior in stiffness, in an easy and efficient manner, by causing the resin composition to foam up in a cavity of a mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.