2,2'-Dithiodianiline cured polyurethane
US4088636A · kind A · utility
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4References
1Claims
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Assignee
Inventor
Key dates
| Filing date | Dec 16, 1974 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Dec 16, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved polyurethane obtained by reacting 3,3'-dimethyldiphenyl methane-4,4'-diisocyanate with a polyether polyol and curing with 2,2'-dithiodianiline in the presence of a catalytic amount of triethylene diamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.