The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Jul. 24, 2008
Applicants:
Naoki Matsuoka, Tokyo, JP;
Minoru Yamamoto, Tokyo, JP;
Shigeru Nakajima, Tokyo, JP;
Takahiro Deguchi, Tokyo, JP;
Inventors:
Naoki Matsuoka, Tokyo, JP;
Minoru Yamamoto, Tokyo, JP;
Shigeru Nakajima, Tokyo, JP;
Takahiro Deguchi, Tokyo, JP;
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/24 (2006.01); C08J 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a hydrophilic polyolefin sintered material which is a water-absorbing sintered material of a polyolefin resin ice having a graft chain composed of at least one molecular chain selected from hydrophilic ethylenically unsaturated group-containing monomers and their polymers. This hydrophilic polyolefin sintered material has an average porosity of 20-80% by volume and an open cell having an average pore diameter of 1-150 μm.