Radiation curable silicone release compositions

• US 4,201,808 A
• Filed: 06/12/1978
• Issued: 05/06/1980
• Est. Priority Date: 06/12/1978
• Status: Expired due to Term

• Current Assignee: OSI Specialties, Inc.
• Original Assignee: Union Carbide Corporation (Dow, Inc.)
• Inventors: Pines, Arthur N., Metzler, Richard B., Babian, Gunther W., Cully, Maryann
• Primary Examiner(s): Robinson, Ellis P.
• Application Number:
  US05/914,889
• Time in Patent Office: 694 Days
• Field of Search: 204/159.13, 428/452, 428/447, 428/352, 428/40, 428/41, 428/42, 427/54, 427/387, 260/827
• US Class Current: 428/40.7
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 2666/34 Oxygen-containing compounds, including ammonium and metal salts
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: C09D 183/06 containing silicon bound to oxygen-containing groups C09D183/12 takes precedence
• CPC Class Codes: C09J 2301/416 use of irradiation
• CPC Class Codes: C09J 2400/283 in the substrate
• CPC Class Codes: C09J 2483/005 in the release coating
• CPC Class Codes: C09J 7/401 characterised by the release coating composition
• CPC Class Codes: D21H 19/32 obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
• CPC Class Codes: Y10T 428/1429 Fluorine
• CPC Class Codes: Y10T 428/2839 with release or antistick coating
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Release-coated material is produced by applying to a substrate, e.g. paper, a coating of a radiation curable composition comprising (a) an organopolysiloxane containing an average of at least one acryloxy and/or methacryloxy group per molecule, (b) a low molecular weight polyacrylyl crosslinking agent and, optionally, (c) a photosensitizer; and curing the composition on the substrate by exposing it to ionizing radiation or actinic non-ionizing radiation.

Claims