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US 2013/0244028 A1Published application
Extrudable urethane release coating
Assignee3M Innovative Properties Company
InventorsYu Yang, David T. Yust, Lei Wang, Jeffrey O. Emslander, James P. DiZio
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Abstract
Described herein is a release material comprising: a blend comprising: releasing agent comprising a urethane polymer derived from a polyvinyl polymer containing active hydroxyl groups and an aliphatic isocyanate; and a carrier polymer, wherein more than 50% by weight of the carrier polymer is non-olefinic, and articles thereof.
Claims14
A release material comprising:
- a blend comprising:
- releasing agent comprising a urethane polymer derived from a polyvinyl polymer containing active hydroxyl groups and an aliphatic isocyanate;
- and
- a carrier polymer, wherein more than 50% by weight of the carrier polymer is non-olefinic.
1 more element
An article comprising:
- a release coating comprising a blend comprising:
- (i) a releasing agent comprising a urethane polymer derived from a polyvinyl polymer containing active hydroxyl groups and an aliphatic isocyanate;
- and (ii) a carrier polymer, wherein more than 50% by weight of the carrier polymer is non-olefinic;
- and an adhesive in intimate contact with at least one major surface of the release coating.
1 more element
A method of making an adhesive article comprising:
- blending a composition comprising (i) a urethane polymer derived from a polyvinyl polymer containing active hydroxyl groups and an aliphatic isocyanate and (ii) a carrier polymer, wherein more than 50% by weight of the carrier polymer is non-olefinic;
- extruding or casting the blend to form a sheet;
- optionally heating the sheet;
- and
- applying an adhesive onto the sheet to form an adhesive article.
2 more elements
Dependencies are inferred from the claim text.