Title:
BLOCK COPOLYESTER
Document Type and Number:
Japanese Patent JP2012031430
Kind Code:
A
Abstract:
To solve the problem wherein a copolyester is required to have both a high melting point and a low glass transition point.
This block copolyester includes a hard segment and a soft segment, and the copolyester has a melting point of ≥200°C and a glass transition temperature of ≤-40°C. The hard segment is preferably polyethylene terephthalate, polybutylene terephthalate, or polyethylene naphthalate. The soft segment is preferably formed from at least one kind of dimer fatty acid and/or dimer aliphatic diol and/or equivalent thereof. The copolyester is especially suitable for use in automobile parts, particularly those in which thermal stability is required.
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Inventors:
APPELMAN ERIC
CARTER JEFFREY THOMAS
CARTER JEFFREY THOMAS
Application Number:
JP2011231845A
Publication Date:
February 16, 2012
Filing Date:
October 21, 2011
Export Citation:
Assignee:
UNICHEMA BV
CRODA INT PLC
CRODA INT PLC
International Classes:
C08G63/00; C08G63/199; C08G63/91; C08G63/48; C08G63/553; C08G63/78
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Nagasaka Tomoyasu
Shunsuke Mima
Takashi Ishida
Tetsuji Koga
Satoshi Deno
Nagasaka Tomoyasu
Shunsuke Mima