Chemical blowing agent
US4384048A · kind A · utility
4Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1982 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Jul 7, 2002 |
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 characterized in that the blowing agent and activator have been micronized 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.