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Multi-layer assembly, multi-layer stretch releasing pressure-sensitive adhesive assembly, and methods of making and using the same

  • US 9,346,979 B2
  • Filed: 11/15/2012
  • Issued: 05/24/2016
  • Est. Priority Date: 05/11/2007
  • Status: Expired due to Fees
First Claim
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1. A multi-layer assembly comprising:

  • a release liner comprisinga first major surface,a second major surface,a first release agent on the first major surface of the release liner, the first release agent comprising the reaction product of a fluorosilicone polymer comprising at least about 35% fluorine substitution and an organohydrogenpolysiloxane crosslinking agent, anda second release agent on the second major surface of the release liner;

    a first layer comprising a pressure-sensitive adhesive composition disposed upon and in contact with the first release agent on the first major surface of the release liner, the pressure-sensitive adhesive composition comprising silicone polyurea block copolymer; and

    a second layer comprising a pressure-sensitive adhesive composition comprising an elastomer disposed upon and in contact with the first layer, the composition of the pressure-sensitive adhesive composition of the second layer being different from the composition of the pressure-sensitive adhesive composition of the first layer,the first layer of the multi-layer assembly exhibiting a release force to the release liner of no greater than 100 grams per 0.5 inch width after the multi-layer assembly has been stored for 46 days at 120°

    F.

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