Methacrylic resin and process for producing thererof
US7964690B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Nov 20, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A methacrylic resin comprising 80 to 98.5 wt % of methyl methacrylate monomer unit and 1.5 to 20 wt % of at least one different vinyl monomer unit copolymerizable with methyl methacrylate, characterized in that the methacrylic resin has a weight average molecular weight measured by gel permeation chromatography (GPC) of 60,000 to 230,000 and comprises 7 to 30% of a component having a weight average molecular weight of ⅕ or less of a peak weight average molecular weight (Mp) obtained from a GPC elution curve based on the methacrylic resin component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.