# US RE34,740 E · Adsorptive resin for microorganisms

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- Number: US RE34,740 E
- Document ID: USRE34740E
- Status: Granted
- Kind: E
- Application number: 08/163,327
- Filed: 1993-12-06
- Granted: 1994-09-27
- Earliest claimed: 1989-07-12
- Assignees: Japane Vilkene Company, Ltd.
- Inventors: Nariyoshi Kawabata; Akinori Minami; Tadahira Yo
- Web page: https://patentgrep.com/patent/USRE34740E

## Abstract

The present invention relates to absorption resins comprising vinyl copolymers which do not dissolve in water and are capable of absorbing microorganisms without inactivating the microorganisms and also adsorbents with a large contact area which are capable of absorbing microorganisms efficiently as well as methods of making the resins and the adsorbents.

## Claims

### Claim 1

A resin for adsorbing microorganisms comprising a vinyl copolymer of the following formula ##STR3## wherein, R.sub.1 is a benzyl group, an alkyl group of 4 to 16 carbon atoms or a pentafluorophenylmethyl group, R.sub.2 is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, X is a halogen atom, and Y is a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, a benzyl group, an ether group, a carboxyl group, a carboxylic acid ester group or an aryl group, said vinyl copolymer being insoluble in water and soluble in organic solvent.

### Claim 2

An adsorbent for microorganisms comprising a vinyl copolymer of the following formula and existing on the surface of a substrate, ##STR4## wherein, R.sub.1 is a benzyl group, an alkyl group of 4 to 16 carbon atoms or a pentafluorophenylmethyl group, R.sub.2 is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, X is a halogen atom, and Y is a hydrogen atom, an alkyl group of 1 to 3 carbon atoms, a benzyl group, an ether group, a carboxyl group, a carboxylic acid ester group or an aryl group, said vinyl copolymer being insoluble in water and soluble in organic solvent.

### Claim 3 (depends on 2)

The adsorbent according to claim 2, wherein said substrate is a porous material.

### Claim 4 (depends on 3)

The adsorbent according to claim 3, wherein said substrate is a non-woven fabric.

### Claim 5 (depends on 2)

The adsorbent according to claim 2, wherein said vinyl copolymer is existing on the surface of a substrate with a germicidal agent.

### Claim 6 (depends on 3)

The adsorbent according to claim 3, wherein said vinyl copolymer is existing on the surface of a substrate with a germicidal agent.

### Claim 7 (depends on 4)

The adsorbent according to claim 4, wherein said vinyl copolymer is existing on the surface of a substrate with a germicidal agent.

### Claim 8 (depends on 5)

The adsorbent according to claim 5, wherein said germicidal agent is water insoluble.

### Claim 9 (depends on 6)

The adsorbent according to claim 6, wherein said germicidal agent is water insoluble.

### Claim 10 (depends on 7)

The adsorbent according to claim 7, wherein said germicidal agent is water insoluble.

### Claim 11 (depends on 2)

The adsorbent according to claim 2 wherein said vinyl copolymer is existing on the surface of a substrate with a moisture adsorbent.

### Claim 12 (depends on 3)

The adsorbent according to claim 3 wherein said vinyl copolymer is existing on the surface of a substrate with a moisture absorbent.

### Claim 13 (depends on 4)

The adsorbent according to claim 4 wherein said vinyl copolymer is existing on the surface of a substrate with a moisture absorbent.