Title:
POLYESTER ELASTOMER IMPROVED IN WET-HEAT DURABILITY AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3704218
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a polyester elastomer having improved wet-heat durability as well as having properties such as weathering resistance, heat resistance, elongation, tensile recovery and mechanical strengths.
SOLUTION: This invention provides a polyester elastomer composed of a polyester (A) part and a polyester (B) part, wherein polyester (A) part comprises an acid component comprising 60-90mol%, based on the total acid component, aromatic dicarboxylic acid component based on isophthalic acid and/or phthalic acid, and 40-10mol%, based on the total acid component, 6-12C aliphatic dicarboxylic acid and a glycol component comprising a 6-12C aliphatic α,ω-diol, and polyester (B) part comprises an acid component based on an aromatic dicarboxylic acid and a glycol component based on a 2-4C α,ω-diol and/or cyclohexanedimethanol and has a carboxyl terminal group concentration of 20 equivalents/ton or below and an intrinsic viscosity of 0.4-2.0.
Inventors:
Yoichi Yoshida
Kimihiko Sato
Kimihiko Sato
Application Number:
JP1004297A
Publication Date:
October 12, 2005
Filing Date:
January 23, 1997
Export Citation:
Assignee:
TEIJIN FIBERS LIMITED
International Classes:
C08G63/181; C08G63/78; C08G63/91; (IPC1-7): C08G63/181; C08G63/91
Domestic Patent References:
| JP8059804A | ||||
| JP5163333A | ||||
| JP5071013A | ||||
| JP5059616A | ||||
| JP5032770A |
Attorney, Agent or Firm:
Hideko Mihara