Inorganic filler, polyarylene sulfide resin composition, molded article, and methods for producing same
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United States of America Patent
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Jul 19, 2022
Grant Date -
Apr 16, 2020
app pub date -
Jul 2, 2018
filing date -
Jul 3, 2017
priority date (Note) -
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Abstract
More specifically, provided are a polyarylene sulfide resin composition including 100 parts by mass of a polyarylene sulfide resin and 1 to 100 parts by mass of an inorganic filler surface-treated with a sizing agent, wherein the sizing agent is a sizing agent (α) containing at least a urethane-modified epoxy resin having an alkoxy polyoxyalkylene structure and a urethane resin having a sulfonate group, a sizing agent (β) containing a copolymer (β1) having a mass average molecular weight of 5000 to 150000, which is obtained by radical copolymerization of a polymerizable monomer mixture of at least a (meth)acrylic acid ester and maleic acid (anhydride), or a sizing agent (γ) containing at least a polyether resin, a urethane resin, and a silane coupling agent, a molded article thereof, an inorganic filler used for the composition, and methods for producing them.
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