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:
Dec. 25, 1984
Filed:
Oct. 21, 1982
Applicant:
Inventors:
Masato Kawakami, Sagamihara, JP;
Seiji Tai, Yokohama, JP;
Assignee:
Japan Synthetic Rubber Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
428403 ; 428405 ; 428407 ; 424 20 ; 424 22 ;
Abstract
A polymer particle produced by forming a layer of filler-free polymer (II) on the surface layer of a filler-containing polymer particle (I) by polymerization of a monomer composed mainly of an ethylenically unsaturated compound in the presence of the polymer particle (I) is suitable for uniformly carrying a biological substance such as an immunoreactive substance, enzyme or cell on its surface because it has no filler in its surface layer, and the physical properties of the filler contained in the polymer particle (I) can be utilized.