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    • 7. 发明申请
    • VINYL CHLORIDE-BASED RESIN COMPOSITION, METHOD OF PRODUCING VINYL CHLORIDE-BASED POLYMER COMPOSITION, AND VINYL CHLORIDE-BASED POLYMER COMPOSITION OBTAINED THEREBY
    • 基于氯乙烯的树脂组合物,基于氯乙烯的聚合物组合物的制备方法和基于氯乙烯的聚合物组合物
    • US20110294941A1
    • 2011-12-01
    • US13115369
    • 2011-05-25
    • Tatsuya FUJIMOTOTadashi AmanoManabu FurudateTomohiro InoueShinji FujimotoKen Yahata
    • Tatsuya FUJIMOTOTadashi AmanoManabu FurudateTomohiro InoueShinji FujimotoKen Yahata
    • C08K3/22B82Y30/00
    • B82Y30/00
    • Provided is a vinyl chloride-based resin composition including a vinyl chloride-based resin and a titanium dioxide having an average particle diameter of 5 to 50 nm, in an amount of 1,000 ppm to 10,000 ppm, by mass, relative to the mass of the vinyl chloride-based resin. By adding a titanium dioxide having an average particle diameter of 5 to 50 nm to a vinyl chloride-based resin in an amount described above, a vinyl chloride-based resin composition of excellent thermal stability can be obtained. In the vinyl chloride-based resin composition, the crystalline form of the titanium dioxide is preferably anatase, rutile, or a combination thereof. Also provided is a method of producing a vinyl chloride-based polymer composition that includes subjecting a vinyl chloride monomer, or a mixture of a vinyl chloride monomer and a monomer that is copolymerizable therewith, to suspension polymerization within an aqueous medium, and also includes adding a titanium dioxide having an average particle diameter of 5 to 50 nm to the raw material prior to commencement of the polymerization, to the reaction mixture during the polymerization, to the reaction product following completion of the polymerization, or to a combination of two or more of the raw material, the reaction mixture and the reaction product. The vinyl chloride-based polymer composition obtained using this method exhibits excellent thermal stability.
    • 本发明提供一种氯乙烯类树脂组合物,其含有平均粒径为5〜50nm的氯乙烯类树脂和二氧化钛,相对于质量为1000〜10000ppm 氯乙烯类树脂。 通过向上述量的氯乙烯类树脂中添加平均粒径为5〜50nm的二氧化钛,可以得到热稳定性优异的氯乙烯系树脂组合物。 在氯乙烯系树脂组合物中,二氧化钛的结晶形态优选为锐钛矿型,金红石型,或其组合。 还提供了一种生产氯乙烯基聚合物组合物的方法,该组合物包括使氯乙烯单体或氯乙烯单体与其可共聚的单体的混合物在水性介质中进行悬浮聚合,并且还包括加入 在聚合开始前与原料平均粒径为5〜50nm的二氧化钛,聚合期间的反应混合物,聚合完成后的反应产物,或两种以上的组合 的原料,反应混合物和反应产物。 使用该方法获得的基于氯乙烯的聚合物组合物显示出优异的热稳定性。