Thin wall application with injection compression molding and in-mold roller
US9908272B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | May 24, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3481
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a thin wall component comprise: locating a film (40) in a mold cavity of a mold, wherein the mold cavity has an initial mold thickness, wherein the film comprises a base layer (41) and a pattern layer (42); injecting a molding material (60) into the mold cavity such that the molding material contacts the pattern layer, wherein the molding material comprises a polymeric material and a filler; compressing the mold to a final mold thickness that is less than the initial mold thickness, to form a molded product, wherein the pattern layer forms a surface of the molded product; and removing the molded product from the mold. A molded product formed by the method. The method produce a thin walled component without warpage, inner stresses, poor surface quality, or washout defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.