Method for expansion injection molding
US7704423B2 · kind B2 · utility
8Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C44/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection-foaming molding process for manufacturing a formed article by injecting a molten resin containing a foaming agent into a cavity of a mold being retained in an openable state and then expanding the cavity by opening the mold to allow the resin to foam includes:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.