Thiodipropionic acid bisamides as stabilizers for nonblack elastomers
US6365653B1 · kind B1 · utility
4Cited by
10References
12Claims
0Family size
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Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Oct 27, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/41
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Nonblack elastomers, which have excellent stability against oxidative, light- or ozone-induced degradation, comprise as stabilizers at least one compound of formula I whereinR1 is hydrogen, C1-C12alkyl, cyclohexyl, phenyl or benzyl,R2 is hydrogen or C1-C4alkyl, andn is the number 0, 1 or 2. The compounds of formula I are excellently suitable as colour-stable and nonstaining stabilizers and antiozonants for protecting nonblack elastomers against oxidative, thermal, light- or ozone-induced degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.