Non-migrating 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperdine 1,3,5-triazine derivatives as polymer stabilizers
US5300544A · kind A · utility
9Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1993 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Mar 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/3842
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1-Hydrocarbyloxy-2,2,6,6-tetramethylpiperidine derivatives of s-triazines having functional groups such as hydroxy, amino, carboxy, epoxy, isocyanate or the like present are capable of chemically bonding with polymer substrates having anhydride, epoxide, alkoxymethylmelamine or isocyanate moieties present. This chemical bonding prevents migration or loss of the stabilizer during subsequent processing or end-use application of the stabilized polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.