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:
Oct. 03, 2006
Filed:
May. 13, 2005
Applicants:
Kenjiro Mori, Ibaraki, JP;
Tatsuya Konishi, Ibaraki, JP;
Inventors:
Kenjiro Mori, Ibaraki, JP;
Tatsuya Konishi, Ibaraki, JP;
Assignee:
Nitto Denko Corporation, Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/12 (2006.01); C08F 236/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A production method of a porous resin or an intermediate therefor, which comprises a step of producing a styrene-acyloxystyrene-divinylbenzene copolymer comprising suspension copolymerization of a styrene monomer, an acyloxystyrene monomer and a divinylbenzene monomer using an organic solvent and water, and a step of converting the styrene-acyloxystyrene-divinylbenzene copolymer to a styrene-hydroxystyrene-divinylbenzene copolymer, wherein a chain transfer agent is added to the suspension copolymerization system.