Process for chemically bonding stabilizers to polymers
US4731393A · kind A · utility
16Cited by
23References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 11, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Jun 11, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F291/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
s-Triazine compounds, the molecule of which contains at least one ethylenically unsaturated group and at least one 2,2,6,6-tetramethylpiperidine group can be grafted onto organic polymers, in particular onto polyolefines, in the presence of free-radical formers or by means of irradiation. Examples of free-radical formers are peroxy or azo compounds. If polyunsaturated piperidine-triazine compounds are used, it is also possible to achieve crosslinking of the polymer, particularly in the case of polyethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.