Biocompatible material

Details Biocompatible material Biocompatible material

2005-05-18

2010-02-16

Pezzuto, Helen L. (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S303100, C526S307700, C526S312000, C526S321000, C526S328500, C623S903000, C623S921000, C623S926000

Reexamination Certificate

active

07662898

ABSTRACT:
A biocompatible material having excellent biocompatibility such as small interaction with a component of a living body such as a protein or blood cell. A biocompatible material comprising a polymer obtained by polymerizing a monomer composition comprising an amino acid-type betaine monomer represented by the formula (I):wherein R1is a hydrogen atom or a methyl group; R2is an alkylene group having 1 to 6 carbon atoms; each of R3and R4is independently an alkyl group having 1 to 4 carbon atoms; R5is an alkylene group having 1 to 4 carbon atoms; and Z is an oxygen atom or an —NH group; and a polymerizable monomer represented by the formula (II):wherein R1is as defined above; and R6is a monovalent organic group, in a weight ratio, i.e. amino acid-type betaine monomer/polymerizable monomer, of from 1/99 to 100/1. The biocompatible material can be suitably used, for example, in food, a food additive, a medicament, a quasi-drug, a medical device, cosmetics, a toiletry article, or the like.

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Yinghua Ma, et al., “Well -Defined Biocompatible Block Copolymers via Atom Transfer Radical Polymerization of 2-Methacryloyloxethyl Phosphorylcholine in Protic Media”; 2003 American Chemical Society, Macromolecules 2003, vol. 36, No. 10; XP-002473724; pp. 3475-3484; Published on the Web Apr. 24, 2003.

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