Title:
BIODEGRADABLE RESIN COMPOSITION AND LAMINATED STRUCTURE MADE THEREFROM
Document Type and Number:
WIPO Patent Application WO/1992/020739
Kind Code:
A1
Abstract:
A biodegradable resin composition comprising a saponified ethylene/vinyl acetate copolymer and a starch, wherein the copolymer has an ethylene content of 20 to 60 mole %, a degree of saponification of the vinyl acetate units of 90 mole % or above, a melt flow index of 1 to 100 g/10 min at 210 �C under a 2,160 g load, and an $g(h)�60? to $g(h)�5? ratio of 0.5 to 4, wherein $g(h)�60? is the melt viscosity of the sample kept at 250 �C for 60 min and $g(h)�5? is the one at 250 �C for 5 min. The layer of this composition can form a laminated structure with another material such as a photodegradable polymer.
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Inventors:
Uemura, Tomoyoshi (19-18, Yamatedai 6-chome Ibaraki-shi, Osaka 567, JP)
Akamatsu, Yoshimi (18-12, Shimosakabe 3-chome Amagasaki-shi, Hyogo 661, JP)
Yoshida, Yuichi (7-18, Utashikiyama 4-chome Tarumi-k, Kobe-shi Hyogo 655, JP)
Moriwaki, Yoshikazu (13-5, Yahataya 2-chome Minato-k, Osaka-shi Osaka 552, JP)
Akamatsu, Yoshimi (18-12, Shimosakabe 3-chome Amagasaki-shi, Hyogo 661, JP)
Yoshida, Yuichi (7-18, Utashikiyama 4-chome Tarumi-k, Kobe-shi Hyogo 655, JP)
Moriwaki, Yoshikazu (13-5, Yahataya 2-chome Minato-k, Osaka-shi Osaka 552, JP)
Application Number:
PCT/JP1992/000633
Publication Date:
November 26, 1992
Filing Date:
May 15, 1992
Export Citation:
Assignee:
NIPPON GOHSEI KAGAKU KOGYO KABUSHIKI KAISHA (9-6 Nozaki-cho, Kita-ku Osaka-shi, Osaka 530, JP)
Uemura, Tomoyoshi (19-18, Yamatedai 6-chome Ibaraki-shi, Osaka 567, JP)
Akamatsu, Yoshimi (18-12, Shimosakabe 3-chome Amagasaki-shi, Hyogo 661, JP)
Yoshida, Yuichi (7-18, Utashikiyama 4-chome Tarumi-k, Kobe-shi Hyogo 655, JP)
Moriwaki, Yoshikazu (13-5, Yahataya 2-chome Minato-k, Osaka-shi Osaka 552, JP)
Uemura, Tomoyoshi (19-18, Yamatedai 6-chome Ibaraki-shi, Osaka 567, JP)
Akamatsu, Yoshimi (18-12, Shimosakabe 3-chome Amagasaki-shi, Hyogo 661, JP)
Yoshida, Yuichi (7-18, Utashikiyama 4-chome Tarumi-k, Kobe-shi Hyogo 655, JP)
Moriwaki, Yoshikazu (13-5, Yahataya 2-chome Minato-k, Osaka-shi Osaka 552, JP)
International Classes:
B32B27/08; B32B27/30; C08L3/02; C08L29/04; (IPC1-7): B32B9/00; B32B27/28; C08L3/00; C08L23/26; C08L29/04
Attorney, Agent or Firm:
Oishi, Yukio (Ohshiro Buildings, 19-11 Higashi-Nakajima 1-chome, Higashi-Yodogawa-k, Osaka-shi Osaka 533, JP)
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