Curable resin compositions
Some of the resin compositions are ultraviolet light or thermally curable, while others are ultraviolet light curable. One example of the ultraviolet light or thermally curable resin composition consists of a predetermined mass ratio of a (meth)acrylate cyclosiloxane monomer and a non-siloxane (meth)acrylate based monomer ranging from about >0:<100 to about 80:20; from 0 mass % to about 10 mass %, based on a total solids content of the resin composition, of an initiator selected from the group consisting of an azo-initiator, an acetophenone, a phosphine oxide, a brominated aromatic acrylate, and a dithiocarbamate; a surface additive; and a solvent.
1 . An ultraviolet light or thermally curable resin composition, consisting of:
a predetermined mass ratio of a (meth)acrylate cyclosiloxane monomer and a non-siloxane (meth)acrylate based monomer ranging from about >0: <100 to about 80:20, wherein:
the (meth)acrylate cyclosiloxane monomer is 2,4,6,8-tetramethyl-2,4,6,8-tetrakis [3-acryloyloxypropyl]cyclotetrasiloxane; and
the non-siloxane (meth)acrylate based monomer is selected from the group consisting of glycerol dimethacrylate, mixture of isomers; glycerol 1,3-diglycerolate diacrylate; pentaerythritol triacrylate; pentaerythritol tetraacrylate; bisphenol A glycerolate diacrylate; trimethylpropane triacrylate; 3-(acryloyloxy)-2-hydroxypropyl methacrylate; poly(ethylene glycol)dimethacrylate; ethylene glycol dimethacrylate; and combinations thereof;
from 0 mass % to about 10 mass %, based on a total solids content of the resin composition, of an initiator selected from the group consisting of an azo-initiator, an acetophenone, a phosphine oxide, a brominated aromatic acrylate, and a dithiocarbamate;
a surface additive; and
a solvent.
2 . The ultraviolet light or thermally curable resin composition as defined in claim 1 , wherein:
the resin composition includes the initiator;
the initiator is the azo-initiator; and
the azo-initiator is selected from the group consisting of azobisisobutyronitrile; 2,2′-azobis(2,4-dimethylvaleronitrile); 1,1′-azobis(cyclohexanecarbonitrile); 2,2′-azobis(4-methoxy-2,4-dimethylvaleronitrile); dimethyl 2,2′-azobis(2-methylpropionate); and 2,2′-Azobis(N-butyl-2-methylpropionamide.
3 . The ultraviolet light or thermally curable resin composition as defined in claim 1 , wherein:
the resin composition includes the initiator;
the initiator is the acetophenone; and
the acetophenone is selected from the group consisting of 2,2-dimethoxy-2-phenylacetophenone and 2-hydroxy-2-methylpriophenone.
4 . The ultraviolet light or thermally curable resin composition as defined in claim 1 , wherein:
the resin composition includes the initiator;
the initiator is the phosphine oxide; and
the phosphine oxide is selected from the group consisting of
diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate, and combinations thereof.
5 . The ultraviolet light or thermally curable resin composition as defined in claim 1 , wherein:
the resin composition includes the initiator;
the initiator is the brominated aromatic acrylate; and
the brominated aromatic acrylate is pentabromobenzyl acrylate.
6 . The ultraviolet light or thermally curable resin composition as defined in claim 1 , wherein:
the resin composition includes the initiator;
the initiator is the dithiocarbamate; and
the dithiocarbamate is benzyl diethyldithiocarbamate.
7 . An ultraviolet light curable resin composition, comprising:
a predetermined mass ratio of a (meth)acrylate cyclosiloxane monomer and a non-siloxane (meth)acrylate based monomer ranging from about >0: <100 to about 80:20, wherein:
the (meth)acrylate cyclosiloxane monomer is 2,4,6,8-tetramethyl-2,4,6,8-tetrakis [3-acryloyloxypropyl]cyclotetrasiloxane; and
the non-siloxane (meth)acrylate based monomer is selected from the group consisting of glycerol dimethacrylate, mixture of isomers; glycerol 1,3-diglycerolate diacrylate; pentaerythritol triacrylate; pentaerythritol tetraacrylate; bisphenol A glycerolate diacrylate; trimethylpropane triacrylate; 3-(acryloyloxy)-2-hydroxypropyl methacrylate; poly(ethylene glycol)dimethacrylate; and ethylene glycol dimethacrylate;
an initiator selected from the group consisting of an acetophenone, a phosphine oxide, a brominated aromatic acrylate, and a dithiocarbamate;
a surface additive; and
a solvent.
8 . The ultraviolet light curable resin composition as defined in claim 7 , wherein:
the initiator is the acetophenone; and
the acetophenone is selected from the group consisting of 2,2-dimethoxy-2-phenylacetophenone and 2-hydroxy-2-methylpriophenone.
9 . The ultraviolet light curable resin composition as defined in claim 7 , wherein:
the initiator is the phosphine oxide; and
the phosphine oxide is selected from the group consisting of
diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate, and combinations thereof.
10 . The ultraviolet light curable resin composition as defined in claim 7 , wherein:
the initiator is the brominated aromatic acrylate; and
the brominated aromatic acrylate is pentabromobenzyl acrylate.
11 . The ultraviolet light curable resin composition as defined in claim 7 , wherein:
the initiator is the dithiocarbamate; and
the dithiocarbamate is benzyl diethyldithiocarbamate.