会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 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。
    • 9. 发明申请
    • DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION AND METHOD OF PRODUCING VINYL CHLORIDE-BASED POLYMER USING SAME
    • 用于悬浮聚合的分散稳定剂及使用其制备基于氯乙烯的聚合物的方法
    • US20080176995A1
    • 2008-07-24
    • US12017869
    • 2008-01-22
    • Makoto OOURATadashi AmanoMinoru ShigemitsuShingo Niinobe
    • Makoto OOURATadashi AmanoMinoru ShigemitsuShingo Niinobe
    • C09K3/00C08L27/06
    • C08F14/06C08L1/284C08L27/06C08F2/20C08L2666/26
    • Provided is a dispersion stabilizer for suspension polymerization that contains a hydroxypropylmethylcellulose with a degree of methoxy group substitution of 27 to 30% by mass and a degree of hydroxypropoxy group substitution of 5 to 12% by mass, in which the viscosity at 20° C. of a 2% by mass aqueous solution of the hydroxypropylmethylcellulose is within a range from 5 to 1,600 mPa·s, and in 2 ml of a 0.2% by mass solution of the hydroxypropylmethylcellulose, the number of undissolved fibers with a particle size within a range from 8 to 200 μm, as measured by a Coulter counter method, is not more than 1,000, and the number of undissolved fibers with a particle size of 50 μm or greater measured using the same method is not more than 20. By employing a method of producing a vinyl chloride-based polymer that uses this dispersion stabilizer, a vinyl chloride-based polymer with extremely low levels of fish eyes and defects derived from foreign objects can be produced.
    • 提供一种悬浮聚合用分散稳定剂,其含有甲氧基取代度为27〜30质量%,羟基丙氧基取代度为5〜12质量%的羟丙基甲基纤维素,其中20℃下的粘度 的羟丙基甲基纤维素的2质量%水溶液在5〜1600mPa.s的范围内,在2ml的0.2质量%羟丙基甲基纤维素溶液中,粒径在一定范围内的未溶解纤维的数量 通过Coulter反方法测量的8至200μm的不超过1,000个,使用相同方法测量的粒径为50μm或更大的未溶解纤维的数量不超过20.通过采用方法 制造使用该分散稳定剂的基于氯乙烯的聚合物,可以制造具有极低水平鱼眼的氯乙烯类聚合物和由异物衍生的缺陷。