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:
Aug. 07, 2012
Filed:
Dec. 07, 2006
Yuta Kawakatsu, Ohtsu, JP;
Susumu Kashiwabara, Ohtsu, JP;
Yuta Kawakatsu, Ohtsu, JP;
Susumu Kashiwabara, Ohtsu, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-shi, JP;
Abstract
[Object] An object of the present invention is to provide a surface-treating agent excellent in antithrombogenicity, and accordingly, excellent in biocompatibility, and having high hydrophilicity as compared with conventional medical materials. Further, an object of the present invention is to provide a production method excellent in performance of removing unreacted monomers and further improving a yield as compared with conventional production methods. [Constitution] The present invention relates to a water-insoluble copolymer comprising alkyl(meth)acrylate and methoxypolyethylene glycol(meth)acrylate. The present invention also relates to a method for producing a water-insoluble (meth)acrylate copolymer by copolymerizing alkyl(meth)acrylate and methoxypolyethylene glycol(meth)acrylate in a common polymerization solvent. Further, the present invention relates to a method for purifying (meth)acrylate copolymer by purifying (meth)acrylate copolymer by reprecipitation using a mixed solution of an alcohol having 1 to 10 carbon atoms and water.