Self-adhesive polymer composition for use as prosthetic appliance

• US 4,623,593 A
• Filed: 07/12/1983
• Issued: 11/18/1986
• Est. Priority Date: 07/12/1983
• Status: Expired due to Term

• Current Assignee: Keith Kent
• Original Assignee: Keith Kent
• Inventors: Kent, Keith, Baier, Robert E.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/512,872
• Time in Patent Office: 1,225 Days
• Field of Search: 428/318.8, 428/355, 428/356, 428/343, 428/346, 525/937
• US Class Current: 428/447
• CPC Class Codes: A61K 6/30 Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives
• CPC Class Codes: A61L 27/18 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C08J 2383/04 Polysiloxanes
• CPC Class Codes: C08J 3/243 Two or more independent types of crosslinking for one or more polymers
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: Y10S 264/18 Cross-linking a thermoplastic linear foam during molding
• CPC Class Codes: Y10S 525/937 Utility as body contact e.g. implant, contact lens or I.U.D.
• CPC Class Codes: Y10T 428/249989 Integrally formed skin
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2813 Heat or solvent activated or sealable
• CPC Class Codes: Y10T 428/2852 Adhesive compositions
• CPC Class Codes: Y10T 428/2857 including metal or compound thereof or natural rubber
• CPC Class Codes: Y10T 428/31558 Next to animal skin or membrane
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Polymer compositions and methods of making them are provided. Selected surface layers of the polymers, integral with the polymer body, possess pressure sensitive adhesive properties. The polymers are cured with the selected surfaces in contact with a cross-linking inhibition agent which controls the amount of cross-linking of the polymer taking place at the surface. The polymers are useful as, or in conjunction with, prosthetic appliances which are adhered to skin or other substrates.

Claims

1. An elastomeric polymeric article comprising:

a cured, non-tacky base polymer having an integral surface layer,

said surface layer of said base polymer being modified to have an inhibited, limited degree of crosslinking so that said surface layer has pressure sensitive adhesive properties, said polymer being a silicone rubber.

2. An elastomeric polymeric article comprising:

a cured, non-tacky base polymer having an integral surface layer,

said surface layer of said base polymer being modified to have an inhibited, limited degree of crosslinking so that said surface layer has pressure sensitive adhesive properties, said polymer being a polydimethylsiloxane.

3. An elastomeric polymeric article comprising:

a cured, non-tacky base polymer selected from the group consisting of silicone and siloxane, said base polymer having an integral surface layer,

said surface layer of said base polymer being modified to have an inhibited, limited degree of crosslinking so that said surface layer has pressure sensitive adhesive properties.