Water-swellable copolymers and articles and coatings made therefrom

• US 7,935,773 B2
• Filed: 08/16/2005
• Issued: 05/03/2011
• Est. Priority Date: 08/19/2004
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Schiretz, Frank R., Stopek, Joshua B., Hadba, Ahmad R., Cuevas, Brian
• Primary Examiner(s): Lipman; Bernard
• Application Number:
  US11/660,566
• Publication Number:
  US 20080064839A1
• Time in Patent Office: 2,086 Days
• Field of Search: 526/287, 526/288, 526/303.1, 526/307.2, 526/307.3, 526/307.4, 526/307.7, 526/320
• US Class Current: 526/287
• CPC Class Codes: A61B 17/06166 Sutures suture materials A61L17/00; manufacture of artificial threads D01D; treatment of threads D06M
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61L 17/10 containing macromolecular materials
• CPC Class Codes: A61L 24/043 Mixtures of macromolecular materials
• CPC Class Codes: A61L 2400/04 Materials for stopping bleeding
• CPC Class Codes: A61L 31/041 Mixtures of macromolecular compounds
• CPC Class Codes: C08F 220/06 Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
• CPC Class Codes: C08F 220/382 and containing oxygen, e.g. 2-sulfoethyl (meth)acrylate
• CPC Class Codes: C08F 220/585 and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 33/04 Homopolymers or copolymers of esters C08L43/04 takes precedence
• CPC Class Codes: C08L 33/14 of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• CPC Class Codes: Y10T 428/2964 Artificial fiber or filament
• CPC Class Codes: Y10T 428/2967 Synthetic resin or polymer
• CPC Class Codes: Y10T 428/2969 Polyamide, polyimide or polyester

Abstract

The present disclosure relates to compositions comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamideo-2-methyl-1-propane sulfonic acid. The present disclosure further relates to methods for preparing the copolymer compositions and shaped articles comprising the copolymers.

Claims

1. A composition comprising a copolymer that includes a first monomer and a second monomer that is different from the first monomer, and a hydrophilicity modifying monomer, wherein both the first and second monomer are selected from the group consisting of 3-sulfopropyl acrylate potassium salt, sodium acrylate, N-(tris(hydroxyl methyl)methyl)acrylamide, and 2-acrylamido-2-methyl-1-propane sulfonic acid, and the hydrophilicity modifying monomer is selected from the group consisting of methylmethacrylate, butylacrylate, and cyclohexylacrylate.

2. A composition as in claim 1 wherein the first monomer is 3-sulfopropyl acrylate potassium salt and the second monomer is sodium acrylate.

3. A composition as in claim 1 wherein the first monomer is 3-sulfopropyl acrylate potassium salt and the second monomer is N-(tris(hydroxyl methyl)methyl)acrylamide.

4. A composition as in claim 1 wherein the first monomer is 3-sulfopropyl acrylate potassium salt and the second monomer is 2-acrylamido-2-methyl-1-propane sulfonic acid.

5. A composition as in claim 1 wherein the first monomer is sodium acrylate and the second monomer is N-(tris(hydroxyl methyl)methyl)acrylamide.

6. A composition as in claim 1 wherein the first monomer is sodium acrylate and the second monomer is 2-acrylamido-2-methyl-1-propane sulfonic acid.

7. A composition as in claim 1 wherein the first monomer is N-(tris(hydroxyl methyl)methyl)acrylamide and the second monomer is 2-acrylamido-2-methyl-1-propane sulfonic acid.

8. A composition as in claim 1 wherein the copolymer is crosslinked.

9. A composition as in claim 1 further comprising a therapeutically beneficial compound.

10. A composition as in claim 1 further comprising a contrasting agent.

11. A composition as in claim 1 further comprising a radioactive substance.

12. A composition as in claim 1 further comprising a dye.

13. A composition comprising a copolymer that includes 3-sulfopropyl acrylate potassium salt and N-(tris(hydroxyl methyl)methyl)acrylamide.

14. A composition as in claim 13 wherein the copolymer is crosslinked.

15. A composition as in claim 13 further comprising a therapeutically beneficial compound.

16. A composition as in claim 13 further comprising a contrasting agent.

17. A composition as in claim 13 further comprising a radioactive substance.

18. A composition as in claim 13 further comprising a dye.

19. A composition as in claim 13 further comprising a hydrophilicity modifying monomer.