POROUS RESIN ARTICLE AND METHOD FOR PRODUCTION THEREOF

Title:

POROUS RESIN ARTICLE AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2005/103128

Kind Code:

A1

Abstract:

A porous resin article which has a proportion of communicating pores of 30 % or more and is produced by a method comprising molding a resin containing a pore-forming material incorporated therein into a molded product, and then extracting the pore-forming material from the molded product by the use of a solvent, which dissolves said pore-forming material and does not dissolve the above resin, wherein the pore-forming material is particularly an alkaline compound. The above porous resin article has a high proportion of communicating pores, and thus can hold a great amount of a lubricating oil or the like, and also, is free from the formation of a rust in an iron product in an use involving the contact with a metal part or the like, even when the unextracted pore-forming material oozes out during use.

Inventors:

HIRATA MASAKAZU
TSUTSUI HIDEYUKI

Application Number:

PCT/JP2005/007216

Publication Date:

November 03, 2005

Filing Date:

April 14, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NTN TOYO BEARING CO LTD (JP)
HIRATA MASAKAZU
TSUTSUI HIDEYUKI

International Classes:

C08J9/26; C08J9/40; (IPC1-7): C08J9/26; C08J9/40

Foreign References:

JP2001081227A	2001-03-27
JP2000191820A	2000-07-11
JPH10316794A	1998-12-02
JP2002060534A	2002-02-26
JP2003342410A	2003-12-03
JPS618107A	1986-01-14

Other References: