Methacrylic resin and process for producing thererof

Details Methacrylic resin and process for producing thererof Methacrylic resin and process for producing thererof

2011-06-21

2011-06-21

Bernshteyn, Michael M (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S318600, C428S220000

Reexamination Certificate

active

07964690

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.

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