METHOD OF MODIFYING POLYMER MATERIAL AND USE THEREOF

Title:

METHOD OF MODIFYING POLYMER MATERIAL AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2003/002641

Kind Code:

A1

Abstract:

A method of modifying a polymer material whereby the polymer material is modified to give a highly durable surface without decreasing its strength. Namely, a polymer material is modified by the method comprising a combination of an impregnation step, an activation step, a step of grafting a monomer and a step of a treatment with a hydrophilic polymer. Thus, the hydrophilic nature, adhesiveness, etc. of polymer materials such as polyolefins can be improved without causing any decrease in the practical strength. The thus obtained polymer materials are usable in articles with a need for high water absorptivity and high adhesiveness, for example, water−absorbing materials and water−retaining materials for medical, sanitary, cosmetic and agricultural uses, for improving adhesiveness of synthetic papers, filters, fiber products for clothes and composite materials and the like. Among all, these materials are particularly usable in orthodontical instruments, writing implements and battery separators.

Inventors:

KANAZAWA HITOSHI (JP)

Application Number:

PCT/JP2002/006588

Publication Date:

January 09, 2003

Filing Date:

June 28, 2002

Export Citation:

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Assignee:

KANAZAWA HITOSHI (JP)

International Classes:

B01J20/26; C08F2/50; C08F8/00; C08F255/00; C08F291/00; C08J7/16; C08L51/06; C09J151/06; H01M50/414; H01M50/42; H01M50/429; (IPC1-7): C08J7/16; C08F2/50; C08F255/00; H01M2/16; B01J20/26; B01D39/16

Foreign References:

JPS6279235A	1987-04-11
JPS649243A	1989-01-12
JPH05271445A	1993-10-19
EP0442186A1	1991-08-21
JPS6222832A	1987-01-31
JPS5959726A	1984-04-05
JPS5986628A	1984-05-18
JPH0813337A	1996-01-16

Other References: