Process for producing abrasion-resistant cast article
US3978178A · kind A · utility
54Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1974 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | May 9, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2007/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improvement in a process for producing a synthetic resin cast article having an abrasion-resistant polymer surface layer integrated with the polymer body is provided. The improvement is characterized in that the abrasion-resistant polymer surface layer is formed by a two step polymerization procedure; in the first polymerization step, the polymerizable material is covered with a covering body such as a polymer film, closely adhered thereto, and in the second polymerization step, the polymerizable material is exposed to the air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.