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Patent Searching and Data


Title:
POLYESTER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/054376
Kind Code:
A1
Abstract:
A polyester having repeating units represented by formula (1) wherein R?1¿ represents a divalent hydrocarbon residue which in its structure may contain a heteroatom having no active hydrogen. The polyester has a high refractive index and biodegradability and is useful as a material for fibers and plastics.

Inventors:
Shigehara, Kiyotaka (30-12, Koenji-Minami 5-chome Suginami-ku Tokyo, 166-0003, JP)
Katayama, Yoshihiro (47-4, Nukii 3-chome Nerima-ku Tokyo, 176-0021, JP)
Nishikawa, Seiji (Cosmo Research Institute, Research and Development Center 1134-2, Gongendo Satte-shi Saitama, 340-0193, JP)
Hotta, Yasushi (Cosmo Research Institute, Research and Development Center 1134-2, Gongendo Satte-shi Saitama, 340-0193, JP)
Application Number:
PCT/JP1999/002064
Publication Date:
October 28, 1999
Filing Date:
April 19, 1999
Export Citation:
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Assignee:
COSMO RESEARCH INSTITUTE (9-25, Shibaura 4-chome Minato-ku Tokyo, 108-0023, JP)
COSMO OIL CO., LTD. (1-1 Shibaura 1-chome Minato-ku Tokyo, 105-0023, JP)
Shigehara, Kiyotaka (30-12, Koenji-Minami 5-chome Suginami-ku Tokyo, 166-0003, JP)
Katayama, Yoshihiro (47-4, Nukii 3-chome Nerima-ku Tokyo, 176-0021, JP)
Nishikawa, Seiji (Cosmo Research Institute, Research and Development Center 1134-2, Gongendo Satte-shi Saitama, 340-0193, JP)
Hotta, Yasushi (Cosmo Research Institute, Research and Development Center 1134-2, Gongendo Satte-shi Saitama, 340-0193, JP)
International Classes:
C08G63/553; C08G63/18; (IPC1-7): C08G63/16; C07D309/38; C08G63/79
Foreign References:
JPS60141716A
JPS51106195A
Other References:
See also references of EP 1092741A1
Attorney, Agent or Firm:
Aruga, Mitsuyuki (Kyodo Building 3-6, Nihonbashiningyocho 1-chome Chuo-ku Tokyo, 103-0013, JP)
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