Process for texturing materials

• US 8,546,458 B2
• Filed: 12/07/2011
• Issued: 10/01/2013
• Est. Priority Date: 12/07/2010
• Status: Active Grant

• Current Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Thompson, Jordan M., Goraltchouk, Alexei
• Primary Examiner(s): Gulakowski, Randy
• Assistant Examiner(s): WALES, CHRISTINA H
• Application Number:
  US13/314,116
• Publication Number:
  US 20120142798A1
• Time in Patent Office: 664 Days
• Field of Search: 521/154, 428/308.4, 264/45.6
• US Class Current: 521/154
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants
• CPC Class Codes: A61L 27/56 Porous materials, e.g. foams or sponges
• CPC Class Codes: C08J 2201/026 Crosslinking before of after foaming
• CPC Class Codes: C08J 2205/05 Open cells, i.e. more than 50% of the pores are open
• CPC Class Codes: C08J 2207/10 Medical applications, e.g. biocompatible scaffolds
• CPC Class Codes: C08J 2383/04 Polysiloxanes
• CPC Class Codes: C08J 9/0061 characterized by the use of several polymeric components
• CPC Class Codes: C08J 9/30 by mixing gases into liquid compositions or plastisols, e.g. frothing with air

Abstract

Provided are methods for making textured implantable materials made from two part RTV silicone foams and having a desired color or tone without the need for dyes or colorants.

Claims

1. A method of making a material having a preselected color and suitable for implantation in a mammal, the method comprising:

providing a silicone base component;

providing a catalyst for the base component;

mixing the base component with the catalyst at about 200 rpm for about 30 seconds to achieve a foam solution; and

allowing the foam solution to polymerize to achieve a polymerized silicone material having a brown tone with RGB color code values R=about 135 to about 165, G=about 68 to about 82, and B=0 to about 10.

2. The method of claim 1 that excludes the addition of any colorant, dye or similar agent.

6. The method of claim 1 wherein the foam solution has a viscosity of between about 3400 mPas to about 3800 mPas.

7. The method of claim 1 wherein the foam solution has a viscosity of about 3600 mPas.

8. An implantable material useful as a component of a breast implant made by the method of claim 1.

10. The method of claim 1 further comprising the step of applying the foam solution to a molding surface prior to the step of allowing the foam solution to polymerize.

11. The method of claim 1 further comprising the step of dipping a mandrel into the foam solution prior to the step of allowing the foam solution to polymerize.

3. A method of making a material having a preselected color and suitable for implantation in a mammal, the method comprising:

providing a silicone base component;

providing a catalyst for the base component;

mixing the base component with the catalyst at about 100 rpm for about 60 seconds to achieve a foam solution; and

allowing the foam solution to polymerize to achieve a polymerized silicone material having a buff brown tone having RGB color code values R=about 216 to about 264, G=about 198 to about 242, and B=180 to about 220.

4. The method of claim 3 wherein the foam solution has a viscosity of about 4800 mPas to about 5200 mPas.

5. The method of claim 3 wherein the foam solution has a viscosity of about 5000 mPas.

9. An implantable material useful as a component of a breast implant made by a method of claim 3.

12. The method of claim 3 further comprising the step of applying the foam solution to a molding surface prior to the step of allowing the foam solution to polymerize.

13. The method of claim 3 further comprising the step of dipping a mandrel into the foam solution prior to the step of allowing the foam solution to polymerize.