Stabilizing urethanes with antioxidants
US4596836A · kind A · utility
7Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/372
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane can be made having improved heat stability, sufficient to withstand paint oven temperatures by mixing or dispersing about 0.5 to 10 parts or more of an organic monosulfide or disulfides, preferably where the organo radical is a hydroxyl phenyl or hydroxyl alkyl substituted phenyl radical per 100 parts of the polyurethane reactants and reacting to form the polyurethane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.