Title:
METHOD FOR PRODUCING ESTER OLIGOMER, ESTER OLIGOMER, METHOD FOR PRODUCING POLYESTER AND METHOD FOR PRODUCING POLYURETHANE
Document Type and Number:
Japanese Patent JP2001316327
Kind Code:
A
Abstract:
To obtain an ester oligomer by subjecting waste PET bottles and an ethylene glycol compound to a depolymerization reaction in the presence of a depolymerization catalyst.
This method for producing the ester oligomer, comprising subjecting polyethylene terephthalate and an ethylene glycol compound to a depolymerization reaction in the presence of a depolymerization reaction catalyst.
Inventors:
MAEDA IKUKATSU
KUBOTA SHIZUO
YAMAGUCHI KAZUMI
MAEDA TAKUYA
MIYAMOTO HIROYUKI
SAKAMOTO TOSHIO
KUBOTA SHIZUO
YAMAGUCHI KAZUMI
MAEDA TAKUYA
MIYAMOTO HIROYUKI
SAKAMOTO TOSHIO
Application Number:
JP2000136984A
Publication Date:
November 13, 2001
Filing Date:
May 10, 2000
Export Citation:
Assignee:
WAKAYAMA PREFECTURE
MIYASO CHEMICAL KK
MIYASO CHEMICAL KK
International Classes:
C08J11/10; B01J31/02; B01J31/04; B01J31/12; C07B61/00; C07C67/03; C07C69/82; C08G18/48; C08G63/85; (IPC1-7): C07C67/03; B01J31/02; B01J31/04; B01J31/12; C07B61/00; C07C69/82; C08G18/48; C08G63/85; C08J11/10
Attorney, Agent or Firm:
Fukami Hisaro (3 outside)
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