公开(公告)号：US20220119638A1

公开(公告)日：2022-04-21

申请号：US17434226

申请日：2020-03-24

Applicant: Polyplastics Co., Ltd.

Inventor： Itsuki Saito ,  Yoshihiro Asai ,  Kazuya Goshima

IPC: C08L67/02

Abstract: A method for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition, is disclosed by blending a carbodiimide compound in the thermoplastic resin; use of a carbodiimide compound for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition; and a tracking resistance improving agent for a thermoplastic resin, for improving the comparative tracking index of the thermoplastic resin, as measured in compliance with IEC60112, 3rd edition. The carbodiimide compound is preferably used at a ratio of 0.01 parts by mass or more with respect to 100 parts by mass of the thermoplastic resin.

公开(公告)号：US11236229B2

公开(公告)日：2022-02-01

申请号：US16483977

申请日：2018-02-06

Applicant: POLYPLASTICS CO., LTD.

Inventor： Kazuya Goshima ,  Keiichi Osano

IPC: C08L67/02 ,  C08G63/183 ,  C08K3/26 ,  C08K5/098 ,  C08K5/29

Abstract: A manufacturing method for a thermoplastic aromatic polyester resin composition is disclosed having a step of blending: a thermoplastic aromatic polyester resin A; an alkali composition B containing a thermoplastic aromatic polyester resin a and an alkali compound b; and a carbodiimide compound C. The alkali composition B is preferably a composition in which an aqueous solution of the alkali compound b is melt-kneaded with the thermoplastic aromatic polyester resin a. The carbodiimide compound C preferably contains an aromatic carbodiimide compound. The alkali compound U content in the thermoplastic aromatic polyester resin composition is preferably 10 ppm by mass or more and 100 ppm by mass or less.

公开(公告)号：US20240375359A1

公开(公告)日：2024-11-14

申请号：US18287378

申请日：2022-05-20

Applicant: Polyplastics Co., Ltd.

Inventor： Takato Isomura ,  Koki Nagai ,  Kazuya Goshima ,  Hiroki Fukatsu

IPC: B29C65/00 ,  B29C65/16 ,  B29K67/00 ,  B29K105/00

Abstract: A laser transmissive resin composition is disclosed with high laser transmissiveness, good color development, and in which color transfer does not occur and a molded article using the same. The laser transmissive resin composition (I) includes, with respect to 100 parts by mass of a polyester-based resin (A), 0.005-5.0 parts by mass of an organic pigment (B) including at least a benzimidazolone-based yellow pigment (b1), wherein a 1 mm thick molded article of the resin composition (I) has a CIE L* value of 25 or less and a 940 nm laser transmittance of 40% or greater.

公开(公告)号：US20230041838A1

公开(公告)日：2023-02-09

申请号：US17783326

申请日：2020-12-16

Applicant: Polyplastics Co., Ltd.

Inventor： Takato Isomura ,  Kazuya Goshima ,  Kouichi Sakata

IPC: B29C65/16

Abstract: Problem: To provide a molded article for laser welding which has excellent visible light transmittance and laser transmittance and in which variation in laser transmittance is suppressed, and an agent for suppressing variation in laser transmittance of a molded article for laser welding.
Solution: A molded article for laser welding comprising a polybutylene terephthalate resin composition containing 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a polycarbonate resin in which the melt viscosity at 300° C. and a shear rate of 1000 sec−1 is 0.20 kPa·s or greater, and 1 part by mass or greater and 10 parts by mass or less of (C) an epoxy-based compound, the molded article having a thickness at a welded part of 1.3 mm or greater, and an agent for suppressing variation in laser transmittance of a molded article for laser welding, the agent containing an epoxy-based compound.

公开(公告)号：US11326053B2

公开(公告)日：2022-05-10

申请号：US16981861

申请日：2019-03-20

Applicant: POLYPLASTICS CO., LTD.

Inventor： Kazuya Goshima ,  Itsuki Saito

IPC: C08L67/03 ,  C08L67/02 ,  C09K21/14

Abstract: The present invention addresses the problem of enhancing the fluidity of a polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant while maintaining properties such as excellent mechanical strength that a polybutylene terephthalate-based resin possesses. The problem is solved by adding a protic compound to the polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant.

公开(公告)号：US12257786B2

公开(公告)日：2025-03-25

申请号：US17783326

申请日：2020-12-16

Applicant: Polyplastics Co., Ltd.

Inventor： Takato Isomura ,  Kazuya Goshima ,  Kouichi Sakata

IPC: B29C65/16 ,  B29K67/00 ,  B29K69/00 ,  B29K105/00

Abstract: A molded article for laser welding is disclosed which has excellent visible light transmittance and laser transmittance and in which variation in laser transmittance is suppressed, and an agent for suppressing variation in laser transmittance of a molded article for laser welding. The molded article for laser welding includes a polybutylene terephthalate resin composition containing 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a polycarbonate resin in which the melt viscosity at 300° C. and a shear rate of 1000 sec−1 is 0.20 kPa·s or greater, and 1 part by mass or greater and 10 parts by mass or less of (C) an epoxy-based compound, the molded article having a thickness at a welded part of 1.3 mm or greater, and an agent for suppressing variation in laser transmittance of a molded article for laser welding, the agent containing an epoxy-based compound.

公开(公告)号：US12139601B2

公开(公告)日：2024-11-12

申请号：US17434226

申请日：2020-03-24

Applicant: Polyplastics Co., Ltd.

Inventor： Itsuki Saito ,  Yoshihiro Asai ,  Kazuya Goshima

IPC: C08L67/02

Abstract: A method for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition, is disclosed by blending a carbodiimide compound in the thermoplastic resin; use of a carbodiimide compound for improving the comparative tracking index of a thermoplastic resin, as measured in compliance with IEC60112, 3rd edition; and a tracking resistance improving agent for a thermoplastic resin, for improving the comparative tracking index of the thermoplastic resin, as measured in compliance with IEC60112, 3rd edition. The carbodiimide compound is preferably used at a ratio of 0.01 parts by mass or more with respect to 100 parts by mass of the thermoplastic resin.

公开(公告)号：US20210047511A1

公开(公告)日：2021-02-18

申请号：US16981861

申请日：2019-03-20

Applicant: POLYPLASTICS CO., LTD.

Inventor： Kazuya Goshima ,  Itsuki Saito

IPC: C08L67/02 ,  C09K21/14

Abstract: The present invention addresses the problem of enhancing the fluidity of a polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant while maintaining properties such as excellent mechanical strength that a polybutylene terephthalate-based resin possesses. The problem is solved by adding a protic compound to the polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate-based flame retardant as a flame retardant.

公开(公告)号：US20200010668A1

公开(公告)日：2020-01-09

申请号：US16483977

申请日：2018-02-06

Applicant: POLYPLASTICS CO., LTD.

Inventor： Kazuya Goshima ,  Keiichi Osano

IPC: C08L67/02 ,  C08G63/183 ,  C08K3/26 ,  C08K5/098 ,  C08K5/29

Abstract: A manufacturing method for a thermoplastic aromatic polyester resin composition is disclosed having a step of blending: a thermoplastic aromatic polyester resin A; an alkali composition B containing a thermoplastic aromatic polyester resin a and an alkali compound b; and a carbodiimide compound C. The alkali composition B is preferably a composition in which an aqueous solution of the alkali compound b is melt-kneaded with the thermoplastic aromatic polyester resin a. The carbodiimide compound C preferably contains an aromatic carbodiimide compound. The alkali compound U content in the thermoplastic aromatic polyester resin composition is preferably 10 ppm by mass or more and 100 ppm by mass or less.

公开(公告)号：US20250101222A1

公开(公告)日：2025-03-27

申请号：US18729390

申请日：2023-01-06

Applicant: Polyplastics Co., Ltd.

Inventor： Takato Isomura ,  Koki Nagai ,  Kazuya Goshima ,  Hiroki Fukatsu

IPC: C08L67/06 ,  B23K26/70 ,  B23K103/16 ,  C08K3/32 ,  C08K5/29 ,  C08K7/14

Abstract: A resin composition suitable for manufacturing a laser light transmission-side molded article; and a laser light transmission-side molded article are disclosed. A method for improving the laser light transmission properties of a resin composition molded article is also disclosed. The resin composition includes: 100 parts by mass of a polyalkylene terephthalate resin (A); 10-100 parts by mass of a polycarbonate resin (B); 0.1-3 parts by mass of a carbodiimide compound (C); 0-100 parts by mass of an inorganic filler (D); and an inorganic phosphorus compound (E). The method includes blending 0.1-3 parts by mass of a carbodiimide compound (C) in a resin composition including 100 parts by mass of a polyalkylene terephthalate resin (A), 10-100 parts by mass of a polycarbonate resin (B), 0-100 parts by mass of an inorganic filler (D), and an inorganic phosphorus compound (E).