IP Library › Granted Patent US 10,113,061
Granted Patent B2
US 10,113,061 · App. 15/325,331 · Granted Oct 30, 2018

Polyester resin composition and molding

Inventors: Kiyoshi Nishioka (Hyogo, JP); Tokushi Koda (Hyogo, JP); Naoyuki Hashimoto (Chiba, JP)
Assignees: Sumitomo Seika Chemicals Co., Ltd.; Advanced Softmaterials Inc.
C08L67/04C08L71/02C08G65/3314C08G83/007C08L101/16C08L2201/06
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Quick Facts
Patent No.
US 10,113,061
App. No.
15/325,331
Granted
Oct 30, 2018
Kind
B2
Abstract

The present invention aims to provide a polyester resin composition capable of producing a molded article having excellent stretchability. The present invention also aims to provide a molded article including the polyester resin composition. The present invention relates to a polyester resin composition including: a polyester resin; and a polyrotaxane that has a cyclic molecule, a linear molecule threading through a cavity of the cyclic molecule in a skewered manner, and capping groups capping both ends of the linear molecule.

Claims (9)

1. A polyester resin composition comprising:

a polyester resin; and

a polyrotaxane that has a cyclic molecule, a linear molecule threading through a cavity of the cyclic molecule in a skewered manner, and capping groups capping both ends of the linear molecule,

wherein a polycaprolactone chain is introduced to the cyclic molecule,

the polycaprolactone chain has a carboxyl group as a substituent at its terminal, and

the polyrotaxane contains polyethylene glycol as the linear molecule and a molecule derived from α-cyclodextrin as the cyclic molecule.

2. The polyester resin composition according to claim 1 ,

wherein the polyester resin contains a polylactic acid resin and/or a polyglycolic acid resin.

3. A molded article comprising the polyester resin composition according to claim 1 .

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2022
From: SUMITOMO SEIKA CHEMICALS CO., LTD.
To: ASM INC.
Reel/Frame 059619/0306 →
CHANGE OF NAME Recorded Apr 5, 2022
From: ADVANCED SOFTMATERIALS INC.
To: ASM INC.
Reel/Frame 059609/0597 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2017
From: SUMITOMO SEIKA CHEMICALS CO., LTD.
To: ADVANCED SOFTMATERIALS INC.
Reel/Frame 043298/0316 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2017
From: NISHIOKA, KIYOSHI; KODA, TOKUSHI; HASHIMOTO, NAOYUKI
To: SUMITOMO SEIKA CHEMICALS CO., LTD.
Reel/Frame 041487/0461 →
Priority Claims (1)
JP 2014-170629 · Aug 25, 2014 · national
Continuity (1)
Related Publication 20170198138A1 · Jul 13, 2017