公开(公告)号：US20180057676A1

公开(公告)日：2018-03-01

申请号：US15565218

申请日：2016-09-29

Applicant: LG CHEM, LTD.

Inventor： Heung Kwon BAE ,  Kyung Seog YOUK ,  Jung Rae LEE ,  Hyun Min LEE

IPC: C08L27/06

CPC classification number: C08L27/06 ,  C08F2/24 ,  C08J3/02

Abstract: The present invention relates to a vinyl chloride-based polymer showing high viscosity properties in a low shear region and showing viscosity and stress decreasing properties in line with the increase of a shear rate, a method for preparing the same, and a plastisol comprising the same. Since the vinyl chloride-based polymer comprises a saponified emulsifier in a specific ratio, high viscosity properties may be shown in a low shear region, and Bingham fluid flow properties may be shown, by which viscosity and stress decrease in line with the increase of a shear rate.

公开(公告)号：US20160340452A1

公开(公告)日：2016-11-24

申请号：US15111407

申请日：2015-09-14

Applicant: LG CHEM, LTD.

Inventor： Kyung Seog YOUK ,  Kyung Hyun KIM ,  Hyun Min LEE ,  Yong Jin KIM ,  Heung Kwon BAE ,  Jung Rae LEE

IPC: C08F114/06

CPC classification number: C08F114/06 ,  C08F2/18 ,  C08F2/20 ,  C08F2/44 ,  C08F4/34 ,  C08F6/003 ,  C08F6/24 ,  C08F14/06 ,  C08L27/06

Abstract: The present invention relates to a method of preparing a vinyl chloride polymer having good thermal stability due to the restraint of dehydrochlorination by heat or ultraviolet rays, and a vinyl chloride polymer prepared thereby. In the preparation method, a modifier is introduced at the end of a polymerization process to impart the vinyl chloride polymer with high thermal stability without inducing modification. Therefore, the generation of dehydrochlorination due to heat or ultraviolet rays may be markedly restrained, thermal stability may be improved, and discoloration or the modification of physical properties may be prevented in the vinyl chloride polymer thus prepared.

Abstract translation: 本发明涉及由于通过热或紫外线的脱氯化氢的限制以及由此制备的氯乙烯聚合物制备具有良好的热稳定性的氯乙烯聚合物的方法。 在制备方法中，在聚合过程结束时引入改性剂以使氯乙烯聚合物具有高热稳定性而不引起改性。 因此，可以显着抑制由于热或紫外线引起的脱氯化氢的产生，可以提高热稳定性，并且在由此制备的氯乙烯聚合物中可以防止变色或物理性质的改变。

公开(公告)号：US20160311943A1

公开(公告)日：2016-10-27

申请号：US15101349

申请日：2015-09-14

Applicant: LG CHEM, LTD.

Inventor： Kyung Seog YOUK ,  Heung Kwon BAE ,  Jung Rae LEE ,  Kyung Hyun KIM ,  Hyun Min LEE

IPC: C08F14/06

CPC classification number: C08F14/06 ,  C08F2/001 ,  C08F2/02 ,  C08F2/44 ,  C08F4/38 ,  C08F6/006 ,  C08F114/06 ,  C08L27/06

Abstract: The present invention relates to a method of preparing a vinyl chloride polymer having good thermal stability due to the restraint of dehydrochlorination by heat or ultraviolet rays, and a vinyl chloride polymer prepared thereby. In the preparation method through bulk polymerization, a modifier is introduced to a polymerization process to impart the vinyl chloride polymer with high thermal stability without inducing modification. Therefore, the preparation method via the bulk polymerization of the vinyl chloride polymer and the vinyl chloride polymer prepared thereby according to the present invention may be readily applied to industries requiring thereof such as industries concerning a vinyl chloride resin and the molded article thereof.

Abstract translation: 本发明涉及由于通过热或紫外线的脱氯化氢的限制以及由此制备的氯乙烯聚合物制备具有良好的热稳定性的氯乙烯聚合物的方法。 在通过本体聚合的制备方法中，将改性剂引入到聚合方法中，以赋予具有高热稳定性的氯乙烯聚合物，而不引起改性。 因此，通过根据本发明制备的氯乙烯聚合物和由其制备的氯乙烯聚合物的本体聚合的制备方法可以容易地应用于需要其的行业，例如氯乙烯树脂及其模塑制品。