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US 5,990,238 AGranted
Release coating for adhesive articles and method
Assignee3M Innovative Properties Company
InventorsJames P. DiZio, Roy Wong, Hildegard M. Schneider
Life of this patent
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Abstract
A polymer includes an ethylene-containing backbone having substituents attached thereto, wherein the substituents include a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal methyl group; and an oxygen linked water solubilizing group. The polymer is particularly useful in a release coating composition and is suitable for forming films from aqueous dispersions thereof, organic solvent dispersions thereof, or mixtures thereof.
Claims56
A release coating composition comprising a polymer comprising:
- a polyethylene backbone having substituents attached thereto, wherein the substituents comprise:
- a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal methyl group;
- and
- an oxygen linked water solubilizing group.
1 more element
A release coating composition comprising a polymer comprising:
- a vinyl-derived backbone having substituents attached thereto, wherein the substituents comprise:
- a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal alkyl group;
- and
- an oxygen linked water solubilizing group;
- wherein the release coating composition comprises about 0.5% by weight or less of a surfactant.
2 more elements
A composition for forming a release coating, wherein the composition comprises a polymer formed by combining a polymeric backbone component with an isocyanate-containing hydrocarbon having about 5 carbon atoms or more and a terminal methyl group and a water solubilizing compound.
A release coating composition comprising a polymer comprising units of the following formula:
- ##STR26## wherein each R.sup.1 is independently selected from the group of hydrogen and an aliphatic group;
- and each R is independently selected from the group of X;
- a urethane-linked hydrocarbon group of the formula:
- ##STR27## wherein q is about 5 or more;
- and an oxygen linked water solubilizing group of the formula:
- ##STR28## wherein each R.sup.3 is independently a divalent organic linking group and m is 0 or 1;
- and the X moiety is selected from the group of hydrogen;
- a hydroxyl group;
- a halide;
- an alkylene, an alkenylene, an arylene group, and mixtures thereof having a terminal hydroxyl group;
- ##STR29## --O--R.sup.5 ;
- or --R.sup.6 ;
- wherein each R.sup.4, R.sup.5, and R.sup.6 is independently selected from the group of an aliphatic group, an aromatic group, or mixtures thereof;
- and further wherein each Y moiety independently comprises a functionality capable of being ionized or is the ionized form thereof;
- with the proviso that the polymer contains at least one each of the urethane linked hydrocarbon group and the oxygen linked water solubilizing group.
12 more elements
A release coating composition comprising a polymer comprising:
- ##STR30## wherein each R.sup.1 is independently selected from the group of hydrogen and an aliphatic group;
- each X is independently selected from the group of hydrogen;
- a hydroxyl group;
- a halide;
- an alkylene, an alkenylene, an arylene group, or mixtures thereof, having a terminal hydroxyl group;
- ##STR31## --O--R.sup.5 ;
- and --R.sup.6 ;
- wherein each R.sup.4, R.sup.5, and R.sup.6 is independently selected from the group of an aliphatic group, an aromatic group, and mixtures thereof, and wherein each R.sup.3 is independently a divalent organic linking group and each Y is independently a functionality capable of being ionized or is the ionized form thereof;
- and further wherein q is about 5 or more;
- m is 0 or 1;
- x is about 0 to about 70;
- y is about 5 to about 95;
- and z is about 5 to about 50.
10 more elements
A polymer comprising:
- a vinyl-derived backbone having substituents attached thereto;
- wherein the substituents comprise:
- a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal alkyl group;
- and
- an oxygen linked water solubilizing group.
2 more elements
A method for making a polymer comprising the steps of:
- admixing a polymeric backbone component and at least one organic solvent;
- adding an isocyanate-containing hydrocarbon having at least about 5 carbon atoms in length and a terminal methyl group to the admixture to modify the polymeric backbone component;
- and
- adding a water solubilizing compound to the admixture to modify the polymeric backbone component.
1 more element
An article comprising:
- a backing having a first major surface and a second major surface;
- a pressure sensitive adhesive coated on the first major surface of the backing;
- and
- a low adhesion backsize coated on the second major surface;
- wherein the low adhesion backsize is formed from a release coating composition comprising a polymer comprising:
- an ethylene-containing backbone having substituents attached thereto, wherein the substituents comprise:
- a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal methyl group;
- and
- an oxygen linked water solubilizing group.
6 more elements
A polymer comprising repeat units of the following formula:
- ##STR32## wherein each R.sup.1 is independently selected from the group of hydrogen and an aliphatic group;
- and each R is independently selected from the group of X;
- a urethane-linked hydrocarbon group of the formula:
- ##STR33## wherein q is about 5 or more;
- and an oxygen linked water solubilizing group of the formula:
- ##STR34## wherein the X moiety is selected from the group of hydrogen;
- a hydroxyl group;
- a halide;
- an alkylene, an alkenylene, an arylene group, or mixtures thereof, having a terminal hydroxyl group;
- ##STR35## --O--R.sup.5 ;
- or --R.sup.6 ;
- wherein each R.sup.4, R.sup.5, and R.sup.6 is independently selected from the group of an aliphatic group, an aromatic group, and mixtures thereof, and further wherein each R.sup.3 is independently a divalent organic linking group, m is 0 or 1, and each Y moiety independently comprises a functionality capable of being ionized or is the ionized form thereof;
- with the proviso that the polymer contains at least one each of the urethane linked hydrocarbon group and the oxygen linked water solubilizing group.
10 more elements
A polymer comprising:
- ##STR36## wherein each R.sup.1 is independently selected from the group of hydrogen and an aliphatic group;
- each X is independently selected from the group of a hydrogen;
- a hydroxyl group;
- a halide;
- an alkylene, an alkenylene, an arylene group, or mixtures thereof, having a terminal hydroxyl group;
- ##STR37## --O--R.sup.5 ;
- and --R.sup.6, wherein each R.sup.4, R.sup.5 and R.sup.6 is independently selected from the group of an aliphatic group, an aromatic group, and mixtures thereof;
- and wherein each R.sup.3 is independently a divalent organic linking group and each Y is independently a functionality capable of being ionized or is the ionized form thereof;
- and further wherein q is about 5 or more;
- m is 0 or 1;
- x is about 0 to about 70;
- y is about 5 to about 95;
- and z is about 5 to about 50.
10 more elements
An article comprising:
- a porous backing having a first major surface and a second major surface;
- a pressure sensitive adhesive coated on the first major surface of the backing;
- and
- a low adhesion backsize coated on the second major surface;
- wherein the low adhesion backsize is formed from a release coating composition comprising a polymer comprising:
- an ethylene-containing backbone having substituents attached thereto, wherein the substituents comprise:
- a urethane linked nitrogen-bonded hydrocarbon side chain having about 5 carbon atoms or more in length and a terminal methyl group;
- and
- an oxygen linked water solubilizing group.
6 more elements
Dependencies are inferred from the claim text.