Method of modifying a surface molecules, adhesives, articles, and methods
Assignee3M Innovative Properties Company
InventorsMark J. Pellerite, Alphonsus V. Pocius, G. Marco Bommarito
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Abstract
Adhesive compositions that include self-assembling molecules, adhesives and adhesive articles produced therefrom, and methods of making and using such adhesives.
Claims20
A method of modifying a property of a surface, the method comprising applying to the surface an adhesive composition comprising a mixture of an adhesive component and a precursor of an in-situ self-assembled film capable of modifying a property of the surface to which the adhesive composition is applied, wherein the precursor is of the structure:
- Y—Z—(CQ2)n—W—X
- wherein:
- Y is H, a halogen, a functional group capable of interacting with the adhesive component, or an organic group including a functional group capable of interacting with the adhesive component;
- Z is a covalent bond or an organic linking group;
- Q is H;
- W is a covalent bond or an organic linking group;
- X is a nonionic group that interacts with a substrate on which the adhesive composition is disposed;
- and
- n is at least about 7;
- with the proviso that (CQ2)n does not include CHF groups or alternating CH2CF2 groups;
- and
- wherein at least about 0.1% by weight of the precursor in neutral water at 22° C. forms a multiphase composition.
A method of providing a low-surface-energy film on a surface, the method comprising applying to the surface an adhesive composition comprising a mixture of an adhesive component and a precursor of an in-situ self-assembled low-surface-energy film having a surface energy less than about 35 dynes/cm, wherein the precursor is of the structure:
- Y—Z—(CQ2)n—W—X
- wherein:
- Y is H, F, or a perfluoroalkyl group of the formula CmF2m+1 where m is no greater than about 10;
- Z is a covalent bond;
- Q is H or F;
- W is a covalent bond or an organic linking group;
- X a thiol group, a phosphonate or phosphonic acid group, a hydroxamic acid group, a carboxylic acid group, an isonitrile group, a silyl group, a benzotriazolyl group, a thiazolyl group, a benzimidazolyl group, a pyridinyl group, or a disulfide group;
- and
- n is at least about 7;
- with the proviso that (CQ2)n does not include CHF groups or alternating CH2CF2 groups;
- and
- wherein at least about 0.1% by weight of the precursor in neutral water at 22° C. forms a multiphase composition.
A method of eliminating the need for priming a surface, the method comprising applying to the surface a self-priming adhesive composition comprising a mixture of an adhesive component and a precursor of an in-situ self-assembled film, wherein the precursor is of the structure:
- Y—Z—(CQ2)n—W—X
- wherein:
- Y is a functional group capable of interacting with the adhesive component, or an organic group optionally including a functional group capable of interacting with the adhesive component;
- Z is a covalent bond or an organic linking group;
- Q is H;
- W is a covalent bond or an organic linking group;
- X a thiol group, a phosphonate or phosphonic acid group, a hydroxamic acid group, a carboxylic acid group, an isonitrile group, a silyl group, a benzotriazolyl group, a thiazolyl group, a benzimidazolyl group, a pyridinyl group, or a disulfide group;
- and
- n is at least about 7;
- and
- wherein at least about 0.1% by weight of the precursor in neutral water at 22° C. forms a multiphase composition.
A method of preparing an adhesive composition comprising an adhesive component and a self-assembled film precursor, the method comprising combining the adhesive component and a precursor having the structure:
- Y—Z—(CQ2)n—W—X
- wherein:
- Y is H, a halogen, a functional group capable of interacting with the adhesive component, or an organic group including a functional group capable of interacting with the adhesive component;
- Z is a covalent bond or an organic linking group;
- Q is H;
- W is a covalent bond or an organic linking group;
- X is nonionic group that interacts with a substrate on which the adhesive composition is disposed;
- and
- n is at least about 7;
- with the proviso that (CQ2)n does not include CHF groups or alternating CH2CF2 groups;
- and
- wherein 0.1% weight of the precursor in neutral water at 22° C. forms a multiphase composition.
Dependencies are inferred from the claim text.