Foaming and vulcanizing of elastomeric polymers
US4588752A · kind A · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Sep 30, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2321/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Closed-cell crosslinked sponges of varying densities are prepared from an admixture of a vulcanizable elastomer, vulcanizing ingredients selected from sulfur or sulfur donor compounds together with metal oxides and/or sulfur vulcanization accelerators and a t-alkylhydrazinium salt and/or carbonylhydrazine. The crosslinked sponges have uniform cellular structures and are easily prepared with the desired density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.