Method for producing stabilized polymer
US9447200B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Aug 18, 2011 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Aug 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5357
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a method of producing a stabilized polymer in which inhibition of polymerization of a monomer having an ethylenically unsaturated bond is suppressed even when a specific phenolic antioxidant is added before or during the polymerization of the monomer.The method of producing a stabilized polymer is characterized by comprising the step of adding at least one phenolic antioxidant which is represented by the following Formula (I), (II) or (III) and masked with an organic aluminum to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.