Process for preparing foamable synthetic resin granules
US3960787A · kind A · utility
10Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1974 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Jun 6, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2325/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a process for preparing foamable synthetic resin granules by suspension polymerization, a fatty acid bisamide is added prior to or at an early stage of polymerization in the presence of an inorganic salt and a foaming agent is added at a later stage of polymerization or after completion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.