Methods of producing vinyl aromatic polymers using (meth)acrylic macroinitiators
US7834081B2 · kind B2 · utility
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14References
11Claims
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Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Sep 28, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2438/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the use of poly acrylic and/or methacrylic macroinitiators in the free radical addition reaction of vinyl aromatic monomers to improve the properties of the resulting copolymer and/or composite. More particularly, the present invention relates to the production of poly acrylic and/or poly methacrylic macroinitiators having nitroxyl end groups. Using such macroinitiators in the free radical addition reaction of vinyl aromatics such as polystyrene compatibilizes the acrylic monomer in the vinyl aromatic matrix thereby improving the properties of the resulting polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.