Chemical blowing agent
US4369126A · kind A · utility
5Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1981 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Mar 20, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/91
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a composition comprising a blowing agent and an activator characterised in that the blowing agent and activator have been micronised together rather than separately as hitherto; to methods for making the composition and to the use of the compositions in expanding polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.