WATER−SOLUBLE WATERPROOF FILM - NIPPON SYNTHETIC CHEM IND

Title:

WATER−SOLUBLE WATERPROOF FILM

Document Type and Number:

WIPO Patent Application WO/2003/006239

Kind Code:

A1

Abstract:

A water−soluble waterproof film excellent in water resistance and solubility or dispersibility in water, which is constituted of a water−soluble polyvinyl alcohol film and a (biodegradable) resin layer formed on at least one surface of the film out of a biodegradable resin composition comprising an aliphatic polyester resin and a cellulose derivative.

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Inventors:

OOKUBO MASANORI (JP)
KITAMURA SHUUICHI (JP)
TSUJI TAKAHIRO (JP)
OKUDA SHINYA (JP)

Application Number:

PCT/JP2002/007036

Publication Date:

January 23, 2003

Filing Date:

July 11, 2002

Export Citation:

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Assignee:

NIPPON SYNTHETIC CHEM IND (JP)
KEIWA KABUSHIKI KAISHA (JP)
OOKUBO MASANORI (JP)
KITAMURA SHUUICHI (JP)
TSUJI TAKAHIRO (JP)
OKUDA SHINYA (JP)

International Classes:

A61F13/15; B32B27/30; B32B27/36; C08J7/043; (IPC1-7): B32B27/30; B32B27/36; C08J7/04; A61F5/44; A61F5/445; A61F13/15

Domestic Patent References:

WO1994000293A1

1994-01-06

Foreign References:

JPH06126897A	1994-05-10
JPH06142127A	1994-05-24

Attorney, Agent or Firm:

Sumida, Yoshihiro (3rd Fl. Bo-eki Bldg., 123-1, Higashi-machi, Chuo-k, Kobe-shi Hyogo, JP)

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