METHACRYLIC RESIN COMPOSITION

PROBLEM TO BE SOLVED: To obtain a methacrylic resin composition moldable by various blow moldings such as large-scale molding, injection blow molding, two-stage blow molding and extrusion blow molding, vacuum forming, etc., due to excellent flowability during molding. SOLUTION: This methacrylic resi...

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Bibliographic Details
Main Authors ITAGAKI MASAMI, SHIRAKAWA HIDEO
Format Patent
LanguageEnglish
Published 25.05.1999
Edition6
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PROBLEM TO BE SOLVED: To obtain a methacrylic resin composition moldable by various blow moldings such as large-scale molding, injection blow molding, two-stage blow molding and extrusion blow molding, vacuum forming, etc., due to excellent flowability during molding. SOLUTION: This methacrylic resin composition comprises a methacrylic polymer composed of 50-100 wt.% of methyl methacrylate and 0-50 wt.% of a vinyl-based monomer copolymerizable with it and having 50,000-200,000 weight- average molecular weight and a polymer processing auxiliary. The polymer processing auxiliary has monomer units composed of 60-100 wt.% of a methyl methacrylate unit and 0-40 wt.% of a vinyl-based monomer unit copolymerizable with the methyl methacrylate unit in which the methyl methacrylate unit is measured by a unclear magnetic resonance method and 2-6 dL/g intrinsic viscosity [η] measured in chloroform at 20 deg.C and its content is 0.5-10 pts.wt. based on 100 pts.wt. of the methacrylic polymer.
Bibliography:Application Number: JP19970322208