# US 2008/0188618 A1 · Porous Acrylate Copolymer Films and Uses Therefor

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- Number: US 2008/0188618 A1
- Document ID: US20080188618A1
- Status: Published application
- Kind: A1
- Application number: 12/018,398
- Filed: 2008-01-23
- Published: 2008-08-07
- Earliest claimed: 2007-01-23
- Inventors: Matthew P. Greving; Neal Woodbury; Trent Northern
- Web page: https://patentgrep.com/patent/US20080188618A1

## CPC

- C08F 222/10: Esters
- C08F 222/38: Amides
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

The present invention provides novel porous copolymer films, compositions comprising such films, methods for making such films, and pre-polymerization mixes that can be used for making such films.

## Claims

### Claim 1

A continuous copolymer film, wherein the copolymer film comprises at least two monomeric subunits selected from the group consisting of Methylmethacrylate (MMA), Hydroxyethylmethacrylate (HEMA), Ethyleneglycoldimethacrylate (EDMA), Dimethylacrylamide, Aminopropylmethacrylamide, Bisacrylamide, and Triethyleneglycol Diacrylate.

### Claim 2 (depends on 1)

The continuous copolymer film of claim 1 further comprising a plurality of reactive sites on or in the copolymer film.

### Claim 3 (depends on 2)

The continuous copolymer film of claim 2 wherein the plurality of reactive sites on or in the copolymer are identical.

### Claim 4 (depends on 2)

The continuous copolymer film of claim 2 wherein the density of reactive sites ranges from 100 picomoles to 100 nanomoles per square centimeter.

### Claim 5 (depends on 2)

The continuous copolymer film of claim 2 further comprising molecules bound to the reactive sites.

### Claim 6 (depends on 1)

The continuous copolymer film of claim 1 wherein the two or more monomers are selected from the group consisting of HEMA, MMA, and EDMA monomeric subunits.

### Claim 7 (depends on 1)

The continuous copolymer film of claim 1 wherein the two or more monomers comprise HEMA and EDMA monomeric subunits.

### Claim 8 (depends on 7)

The continuous copolymer film of claim 7 wherein the copolymer film comprises between 7:1 HEMA:EDMA (w:w:w) and 1:7 HEMA:EDMA (w:w:w).

### Claim 9 (depends on 8)

The continuous copolymer film of claim 8 further comprising a plurality of reactive sites on or in the copolymer film.

### Claim 10 (depends on 9)

The continuous copolymer film of claim 9 wherein the plurality of reactive sites on or in the copolymer are identical.

### Claim 11 (depends on 9)

The continuous copolymer film of claim 9 wherein the density of reactive sites ranges from 100 picomoles to 100 nanomoles per square centimeter.

### Claim 12 (depends on 9)

The continuous copolymer film of claim 9 further comprising molecules bound to the reactive sites.

### Claim 13 (depends on 7)

The continuous copolymer film of claim 7 wherein the copolymer film comprises between 21:3:3 HEMA:MMA:EDMA (w:w:w) and 1:3:3 HEMA:MMA:EDMA (w:w:w).

### Claim 14 (depends on 13)

The continuous copolymer film of claim 13 further comprising a plurality of reactive sites on or in the copolymer film.

### Claim 15 (depends on 14)

The continuous copolymer film of claim 14 wherein the plurality of reactive sites on or in the copolymer are identical.

### Claim 16 (depends on 14)

The continuous copolymer film of claim 14 wherein the density of reactive sites ranges from 100 picomoles to 100 nanomoles per square centimeter.

### Claim 17 (depends on 14)

The continuous copolymer film of claim 14 further comprising molecules bound to the reactive sites.

### Claim 18 (depends on 1)

A composition comprising
(a) a substrate; and
(b) a continuous copolymer film of claim 1 formed over the substrate.

### Claim 19

A method for making a continuous copolymer film, comprising copolymerizing at least two monomeric subunits selected from the group consisting of Methylmethacrylate (MMA), Hydroxyethylmethacrylate (HEMA), Ethyleneglycoldimethacrylate (EDMA), Dimethylacrylamide, Aminopropylmethacrylamide, Bisacrylamide, and Triethyleneglycol Diacrylate.

### Claim 20 (depends on 19)

The method of claim 19, wherein the two or more monomers are selected from the group consisting of HEMA, MMA, and EDMA monomeric subunits.

### Claim 21 (depends on 19)

The method of claim 19 wherein the two or more monomers comprise HEMA and EDMA monomeric subunits.

### Claim 22 (depends on 21)

The method of claim 21 wherein the copolymer film comprises between 7:1 HEMA:EDMA (w:w:w) and 1:7 HEMA:EDMA (w:w:w).

### Claim 23 (depends on 21)

The method of claim 21 wherein the copolymer film comprises between 21:3:3 HEMA:MMA:EDMA (w:w:w) and 1:3:3 HEMA:MMA:EDMA (w:w:w).

### Claim 24 (depends on 19)

A method for preparing a composition, comprising making the continuous copolymer film of claim 19 and depositing it on a substrate.

### Claim 25 (depends on 24)

The method of claim 24, wherein the depositing comprises spin coating.

### Claim 26

A pre-polymerization mix comprising at least two monomeric subunits selected from the group consisting of Methylmethacrylate (MMA), Hydroxyethylmethacrylate (HEMA), Ethyleneglycoldimethacrylate (EDMA), Dimethylacrylamide, Aminopropylmethacrylamide, Bisacrylamide, and Triethyleneglycol Diacrylate.

### Claim 27 (depends on 26)

The prepolymerization mix of claim 26, wherein the pre-polymerization mix comprises two or more monomers selected from the group consisting of HEMA, MMA, and EDMA.

### Claim 28 (depends on 26)

The prepolymerization mix of claim 26, wherein the pre-polymerization mix comprises HEMA and EDMA.
