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US 6,150,024 AGranted
Acrylate release compositions and sheet materials having a release coating formed of the same
AssigneeRexam Release, Inc.
InventorsSunil M. Dhoot, Danny C. Thompson
Life of this patent
Estimating the term…
Abstract
Compositions having release properties include at least one cross-linking agent, at least one aliphatic acrylic ester, and at least one fluorinated compound. The composition is applied to the surface of a substrate and exposed to radiation to cross-link and cure the composition to form a polymer film on a surface of the substrate having release properties.
Claims29
A sheet material comprising:
- a sheet material substrate;
- and
- a release coating overlying and adhered to a surface of said sheet material substrate, said coating comprising a cross-linked polymer derived from a cross-linkable composition comprising about 55 to about 75 weight percent of at least one poly-ethylenically unsaturated cross-linking agent, about 20 to about 40 weight percent of at least one aliphatic acrylic ester, and about 1 to about 20 weight percent of at least one cross-linkable fluorinated compound.
A sheet material comprising:
- a sheet material substrate;
- and
- a release coating overlying and adhered to a surface of said sheet material substrate, said coating comprising a cross-linked polymer derived from a cross-linkable composition comprising:
- about 55 to about 75 weight percent of at least two acrylate containing cross linking agents having different average numbers of functional groups available for cross-linking;
- about 20 to about 40 weight percent of at least one aliphatic acrylic ester;
- and
- about 1 to about 20 weight percent of at least one cross-linkable fluorinated compound.
4 more elements
A sheet material comprising:
- a sheet material substrate;
- and
- a release coating overlying and adhered to a surface of said sheet material substrate, said coating comprising a cross-linked polymer derived from a cross-linkable composition comprising:
- about 55 to about 75 weight percent of at least one acrylate containing cross linking agent;
- about 20 to about 40 weight percent of at least one aliphatic acrylic ester;
- and
- about 1 to about 15 weight percent of at least one cross-linkable fluorinated compound.
4 more elements
A sheet material comprising:
- a sheet material substrate;
- and
- a release coating overlying and adhered to a surface of said sheet material substrate, said coating comprising a cross-linked polymer derived from a cross-linkable composition comprising:
- about 55 to about 75 weight percent of acrylate containing cross linking agents having different average numbers of functional groups available for cross-linking and comprising at least one tetrafunctional acrylate containing cross linking agent;
- about 20 to about 40 weight percent of at least one aliphatic acrylic ester;
- and
- about 1 to about 15 weight percent of at least one cross-linkable fluorinated acrylate.
4 more elements
Dependencies are inferred from the claim text.