公开(公告)号：US10100191B2

公开(公告)日：2018-10-16

申请号：US14902736

申请日：2014-07-29

Applicant: KAO CORPORATION

Inventor： Tadashi Tachinami ,  Hiroaki Kishimoto ,  Yoshiro Oda

IPC: C08L67/04 ,  C08L25/08 ,  C08L33/06 ,  C08L33/14 ,  C08J5/18 ,  C08K5/00 ,  C08L101/16 ,  C08K5/10 ,  C08L33/26

Abstract: A polylactic acid resin composition containing (A) a polylactic acid resin, (B) a plasticizer, (C) an organic crystal nucleating agent, and (D) an acrylic/styrene copolymer having an epoxy group, wherein the above (B) plasticizer is an ester compound having two or more ester groups in the molecule, wherein the ester compound contains one or more members selected from the group consisting of an ester compound in which at least one kind of the alcohol component constituting the ester compound is an alcohol reacted with an alkylene oxide having from 2 to 3 carbon atoms in an amount of from 0.5 to 5 mol on average, per one hydroxyl group, and an ester compound represented by formula (I), and wherein the above (D) acrylic/styrene copolymer having an epoxy group is from 0.1 to 0.9 parts by mass, based on 100 parts by mass of (A) the polylactic acid resin. The polylactic acid resin composition of the present invention can be suitably used in various applications such as wrapping materials for food containers, daily sundries, and household electric appliances, trays for industrial parts, and the like.

公开(公告)号：US20150091211A1

公开(公告)日：2015-04-02

申请号：US14401902

申请日：2013-05-28

Applicant: KAO CORPORATION

Inventor： Ryo Shibutani ,  Hiroaki Kishimoto

IPC: C08L67/04 ,  B29C45/00 ,  C08K5/00

CPC classification number: C08L67/04 ,  B29C45/0001 ,  B29K2067/046 ,  C08K5/00 ,  C08K5/29 ,  C08K5/34922 ,  C08K5/523 ,  C08L101/16 ,  C08L2201/02 ,  C08L2205/24

Abstract: A method for producing an injection-molded article of a polylactic acid resin composition, including filling a melt-kneaded product of a polylactic acid resin composition containing a polylactic acid resin, a plasticizer containing a polyoxyalkylene group or an oxyalkylene group, and a mold releasing agent having a melting point of from 20° to 75° C. in an injection-molding machine to mold in a die, wherein the method is characterized in that the above-mentioned injection-molding machine comprises a cylinder at least a part of which has a set temperature of 200° C. or higher, that the die has a surface temperature of 85° C. or higher, and that the die has a surface roughness of 1.0 μm or less. Since the molded article obtained by the method of the present invention has high productivity, and further excellent surface external appearance, the molded article can be used in various industrial applications such as daily sundries, household electric appliance parts, packaging materials for household electric appliance parts, and automobile parts.

Abstract translation: 一种聚乳酸树脂组合物的注射成型体的制造方法，其特征在于，包括填充含有聚乳酸树脂的聚乳酸树脂组合物，含有聚氧化烯基或氧化烯基的增塑剂的熔融混炼物和脱模剂 在注射成型机中熔点为20℃至75℃的模具中的模具中的模具，其特征在于，上述注射成型机包括其至少一部分的圆筒 设定温度为200℃以上，模具的表面温度为85℃以上，模具的表面粗糙度为1.0μm以下。 由于通过本发明的方法获得的模制品具有高的生产率和更好的表面外观，所以模塑制品可用于日用杂货，家用电器零件，家用电器零件包装材料等各种工业应用 ，和汽车零件。

公开(公告)号：US09725593B2

公开(公告)日：2017-08-08

申请号：US14401902

申请日：2013-05-28

Applicant: KAO CORPORATION

Inventor： Ryo Shibutani ,  Hiroaki Kishimoto

IPC: C08L67/04 ,  C08K5/3492 ,  C08K5/523 ,  C08K5/29 ,  B29C45/00 ,  C08K5/00 ,  C08L101/16 ,  B29K67/00

CPC classification number: C08L67/04 ,  B29C45/0001 ,  B29K2067/046 ,  C08K5/00 ,  C08K5/29 ,  C08K5/34922 ,  C08K5/523 ,  C08L101/16 ,  C08L2201/02 ,  C08L2205/24

Abstract: A method for producing an injection-molded article of a polylactic acid resin composition, including filling a melt-kneaded product of a polylactic acid resin composition containing a polylactic acid resin, a plasticizer containing a polyoxyalkylene group or an oxyalkylene group, and a mold releasing agent having a melting point of from 20° to 75° C. in an injection-molding machine to mold in a die, wherein the method is characterized in that the above-mentioned injection-molding machine comprises a cylinder at least a part of which has a set temperature of 200° C. or higher, that the die has a surface temperature of 85° C. or higher, and that the die has a surface roughness of 1.0 μm or less.