Surface treating agent, filtering material for filter, and blood treatment filter

Patent metadata

Field	Value
Publication number	US-9457134-B2
Application number	US-201514877090-A
Country	US
Kind code	B2
Filing date	Oct 7, 2015
Priority date	Mar 30, 2009
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A surface treating agent comprising a copolymer including: a monomer (A) having a hydrophilic functional group of formula (1), a monomer (B) having a basic functional group of formula (3) or (5), and a monomer (C) having a reactive functional group of formula (7), wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/and the monomer (C) between 87/10/3 and 98/1/1. In the formulas, the R groups and n are defined.

First claim

What is claimed is:

1. A surface treating agent fixed to a base material,
wherein the surface treating agent comprises a copolymer of monomer components including:
a monomer (A) having a hydrophilic functional group of formula (1) below,
a monomer (B) having a basic functional group of formula (3) below, and
a monomer (C) having a reactive functional group of formula (7) below,
wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/the monomer (C) being between 87/10/3 and 98/1/1,

wherein R 1 represents a hydrogen atom or a methyl group, R 2 represents an alkyl group having 1 to 4 carbon atoms, n represents an integer of 2 to 4,

wherein R 5 represents a hydrogen atom or a methyl group, each of R 6 s independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, n represents an integer of 2 to 4,

wherein R 7 represents a hydrogen atom or a methyl group, n represents an integer of 0 to 3, and Y represents a hydroxyl group, an epoxy group, a primary amino group, a secondary amino group or a hydrogen atom.

2. The surface treating agent fixed to a base material according to claim 1 , wherein the monomer (A) of formula (1) is 2-methoxyethyl(meth)acrylate or 2-ethoxyethyl(meth)acrylate.

3. The surface treating agent fixed to a base material according to claim 1 , wherein the monomer (B) of formula (3) is N,N-dimethylaminoethyl(meth)acrylate, N,N-diethylaminoethyl(meth)acrylate, or N,N-diisopropylaminoethyl(meth)acrylate.

4. The surface treating agent fixed to a base material according to claim 1 , wherein the monomer (C) of formula (7) is 2-hydroxyethyl(meth)acrylate or glycidyl(meth) acrylate.

5. A filtering material for filter, wherein at least a part of a base material of the filtering material is coated with the surface treating agent according to claim 1 .

6. A blood treatment filter comprising:
a housing having a blood inlet port and a blood outlet port, and
a filter unit which partitions interior of the housing into a blood inlet chamber and a blood outlet chamber,
wherein at least a part of the filter unit is made of the filtering material for filter according to claim 5 .

Assignees

• Terumo Corp

Inventors

• Ochiai Shoji
• Tokunaga Norifumi
• Taguchi Noboru

Classifications

• C08F220/26

  Esters containing oxygen in addition to the carboxy oxygen · CPC title

• B01D29/00

  Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor · CPC title

• C09D133/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• C09D133/10

  Homopolymers or copolymers of methacrylic acid esters · CPC title

• A61L33/064 Primary

  obtained by reactions only involving carbon-to-carbon unsaturated bonds (A61L33/062 takes precedence) · CPC title