Photocurable Elastomer Compositions
The present invention relates to photocurable elastomer compositions and methods of preparation and use of such compositions for cure-in-place applications such as gaskets. The curable compositions generally include an elastomer component, a monofunctional and/or multifunctional reactant and a photoinitiator that in various aspects may be a visible and/or UV curing initiator. The various components may be present in different amounts, depending on the combination of components and composition desired.
1 . A composition comprising:
a) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers elected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of multifunctional reactant; and
c) about 0.1 to about 10.0 weight percent of a photoinitiator.
2 - 4 . (canceled)
5 . A composition comprising:
a) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of a multifunctional reactant; and
c) about 0.1 to about 10.0 weight percent of a visible light photoinitiator.
6 - 7 . (canceled)
8 . A composition comprising:
a) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of a monofunctional reactant; and
c) about 0.1 to about 10.0 weight percent of a photoinitiator.
9 . (canceled)
10 . The composition of claim 8 , wherein said photoinitiator is selected from the group consisting of: benzophenone; substituted benzophenones; acetophenone; substituted acetophenones; benzoin; benzoin alkyl esters; xanthone; substituted xanthones; phosphine oxides; diethoxy-acetophenone; benzoin methyl ether; benzoin ethyl ether; benzoin isopropyl ether; diethoxyxanthone; chloro-thio-xanthone; N-methyl diethanol-amine-benzophenone; 2-hydroxy-2-methyl phenyl-propan-1-one; 2-benzyl-2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-1-butanone; and mixtures thereof.
11 . A composition comprising:
a) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight, percent of a monofunctional reactant; and
c) about 0.1 to about 10.0 weight percent of a visible light photoinitiator.
12 - 13 . (canceled)
14 . A composition comprising:
a) about 35 to about 95 weight percent of an elastomer comprising at least one polyfunctional (meth)acrylate portion and at least one monofunctional (meth)acrylate portion;
b) about 1.0 to about 25 weight percent of at least one multifunctional (meth)acrylate; and
c) about 0.1 to a out 10.0 weight percent of a photoinitiator.
15 . The composition of claim 14 , wherein said at least one monofunctional (meth)acrylate portion of said elastomer comprises at least one (meth)acryloyl terminal group.
16 . The composition of claim 15 , wherein said elastomer comprises a (meth)acryloyl-terminated vinyl polymer.
17 - 18 . (canceled)
19 . A composition comprising:
a) about 35 to about 95 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth) acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of a monofunctional reactant; and
c) about 0.1 to about 10.0 weight percent of a photoinitiator.
20 . (canceled)
21 . The composition of claim 19 , wherein said photoinitiator is selected from the group consisting of: benzophenone; substituted benzophenones; acetophenone; substituted acetophenones; benzoin; benzoin alkyl esters; xanthone; substituted xanthones; diethoxy-acetophenone; benzoin methyl ether; benzoin ethyl ether; benzoin isopropyl ether; diethoxyxanthone; chloro-thio-xanthone; N-meth diethanol-amine-benzophenone; 2-hydroxy-2-ethyl-1-phenyl-propan-1-one; 2-benzyl-2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-1-butanone; and mixtures thereof.
22 . A composition comprising:
a) alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of a multifunctional reactant; and
c) about 0.1 to about 10 weight percent of a visible light photoinitiator.
23 - 24 . (canceled)
25 . A composition comprising:
a) about 35 to about 95 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
b) about 1.0 to about 25 weight percent of a monofunctional reactant;
c) about 0.1 to about 10 weight percent of a visible light photoinitiator.
26 - 27 . (canceled)
28 . A composition comprising:
a) about 35 to about 95 weight percent of an elastomer comprising at least one polyfunctional (met)acrylate portion and at least one monofunctional (meth)acrylate portion;
b) about 1.0 to about 25 weight percent of a reactant comprising at least one multifunctional (meth)acrylate in combination with at least one monofunctional (meth)acrylate; and
c) about 0.1 to about 10.0 weight percent of a photoinitiator.
29 . A composition comprising:
a) about 35 to about 95 weight percent of an elastomer comprising at least one polyfunctional (meth)acrylate portion and at least one monofunctional (meth)acrylate portion;
b) about 1.0 to about 25 weight percent of a reactant comprising at least one multifunctional (meth)acrylate in combination with least one monofunctional (meth)acrylate; and
c) about 0.1 to about 10.0 weight percent of a visible light photoinitiator.
30 . A process for applying a seal to an article comprising the steps of:
a) forming a mixture of a composition comprising:
i) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 25 weight percent of a multifunctional reactant; and
iii) about 0.1 to about 10.0 weight percent of a photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form, an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.
31 . A process for applying a seal to an article comprising the steps of:
a) forming a mixture of a composition comprising:
i) about 35 to about 65 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 25 weight percent of a multifunctional reactant; and
iii) about 0.1 to about 10.0 weight percent of a visible light photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.
32 . A process for applying a seal to an article comprising the steps of:
a) forming a mixture of a composition comprising:
i) about 35 to about 65 weight percent of an elastomer comprising alkyl (methacrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 5 weight percent of a multifunctional reactant; and
iii) about 0.1 to about 10.0 weight percent of a photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and a time sufficient to form a cured seal.
33 . A process f a seal to an article comprising the steps of
a) forming a mixture of a composition comprising:
i) about 35 to about 95 weight percent of an elastomer comprising at least one polyfunctional (meth)acrylate portion and at least one monofunctional (meth)acrylate portion;
ii) a reactant comprising at least one multifunctional meth) acrylate in combination with a monofunctional (meth)acrylate; and
iii) a photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.
34 . A process for applying a seal an article comprising the steps of:
a) forming a mixture of a composition comprising:
i) about 35 to about 95 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 25 weight percent of a monofunctional reactant; and
iii) about 0.1 to about 10.0 weight percent of a photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.
35 . A process for applying a seal to an article comprising the steps of
a) forming a mixture of a composition comprising:
i) alkyl (meth)acrylate polymers selected from the group consisting homopolymers of C 1 -C H alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 25 weight percent of a multifunctional reactant; and
iii) about 0.1 to about 10 weight percent of a visible light photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.
36 . A process for applying a seal to an article comprising the steps of
a) forming a mixture of a composition comprising:
i) about 95 weight percent of an elastomer comprising alkyl (meth)acrylate polymers selected from the group consisting of homopolymers of C 1 -C 10 alkyl (meth)acrylates and copolymers of C 1 -C 10 alkyl (meth)acrylates;
ii) about 1.0 to about 25 weight percent of a monofunctional reactant; and
iii) about 0.1 to about 10 weight percent of a visible light photoinitiator;
b) depositing said mixture on said article in the shape and thickness desired to form an uncured seal; and
c) irradiating said uncured seal with radiation appropriate to and for a time sufficient to form a cured seal.