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US 10,676,592 B2Granted
Cellulose fiber-based substrate, its manufacturing process and use as masking tape
AssigneeAhlstrom-Munksjö Oyj
InventorsMenno Dufour, Violaine Durand
Life of this patent
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Abstract
A cellulose fiber-based substrate, at least one side of which is coated with an aqueous mixture composed of: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, b) at least one lactone substituted with at least one linear or branched and/or cyclic C8-C30 hydrocarbon chain which may contain heteroatoms, c) at least one crosslinking agent. A method of production and use thereof.
Claims17
An adhesive tape comprising:
- (i) a cellulose fiber-based paper substrate,
- (ii) a release coating layer on at least one surface of the paper substrate, and
- (iii) an adhesive layer on another surface of the paper substrate opposite to the release coating layer, wherein
- the release coating layer comprises a reaction product from an aqueous mixture comprised of, based on dry weight percentage:
- (a) 50-99% of at least one water-soluble polymer (WSP) containing hydroxyl groups,
- (b) 1-50% of at least one diketene compound, wherein the at least one diketene compound is substituted with at least one linear, branched and/or cyclic C8-C30 hydrocarbon chain which may contain heteroatoms, and
- (c) at least one crosslinking agent,
- wherein the at least one diketene compound is immobilized on the WSP and the WSP is immobilized on the at least one surface of the paper substrate.
5 more elements
Dependencies are inferred from the claim text.