Package for compounding rubber and compounded rubber
US4957970A · kind A · utility
12Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Jan 23, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/939
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A package comprised of (A) compounding ingredients for unvulcanized rubber packaged in (B) a film comprised of syndiotactic-1,2-polybutadiene, sulfur, accelerator and retarder. The invention further relates to a compounded rubber comprised of a mixture of such package and sulfur curable rubber. The film may also contain additional selected rubbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.