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US 7,922,803 B2Granted
Coating composition and resin multilayer body
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKazuhiko Ito, Mitsugu Nakae
Life of this patent
Estimating the term…
Abstract
A transparent cured film including organic fine particles having an ultraviolet absorbing group and an average particle diameter of 1 to 200 nm, the particles being dispersed in a matrix having an Si—O bond, and having a transmittance of visible light of 80% or more and a haze value of 10% or less. The coating composition can be produced, for example, from a coating composition containing (1) an alkoxysilane compound or polyalkoxysilane compound; (2) an aminosilane compound; (3) an epoxysilane compound; (4) a polymer ultraviolet absorber; (5) a curing catalyst; and (6) a solvent.
Claims19
A coating composition comprising:
- (1) 10 to 90 wt % of at least one alkoxysilane compound represented by formula (1) or at least one polyalkoxysilane compound in which the alkoxysilane compounds represented by formula (1) are bonded through a siloxane bond;
- (2) 1 to 55 wt % of an aminosilane compound represented by formula (2);
- (3) 1 to 60 wt % of an epoxysilane compound represented by formula (3);
- (4) 0.1 to 65 wt % of polymeric ultraviolet absorber particles;
- (5) 0.1 to 30 wt % of at least one curing catalyst;
- and
- (6) at least one solvent, wherein
- the amount of said at least one solvent is from 10 to 1000 parts by weight for 100 parts by weight of the total amount of components (1) to (5), wherein
- the at least one alkoxysilane compound is represented by formula (1):
- (R1)mSi(OR2)4-m (1)
- wherein
- each R1 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by a methacryloxy group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- m is an integer of 0, 1, or 2;
- the aminosilane compound is represented by formula (2):
- (R11)nSi(OR2)4-n (2)
- wherein
- each R11 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group and an amino group, provided that at least one R11 group is replaced by an amino group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- n is an integer of 1 or 2;
- and
- the epoxysilane compound is represented by formula (3):
- (R21)nSi(OR2)4-n (3)
- wherein
- each R21 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group, a glycydoxy group, and a 3,4-epoxycyclohexyl group, provided that at least one R21 group is an alkyl group having 1 to 3 carbon atoms replaced by a glycydoxy group or a 3,4-epoxycyclohexyl group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- n is an integer of 1 or 2.
24 more elements
A method for producing a coating composition comprising mixing:
- (1) at least one alkoxysilane compound represented by formula (1) or at least one polyalkoxysilane compound in which the alkoxysilane compounds represented by formula (1) are bonded through a siloxane bond;
- (2) an aminosilane compound represented by formula (2);
- (3) an epoxysilane compound represented by formula (3);
- (4) polymeric ultraviolet absorber particles;
- (5) at least one curing catalyst;
- and
- (6) at least one solvent, wherein the at least one alkoxysilane compound is represented by formula (1):
- (R1)mSi(OR2)4-m (1)
- wherein
- each R2 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by a methacryloxy group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- m is an integer of 0, 1, or 2;
- the aminosilane compound is represented by formula (2):
- (R11)nSi(OR2)4-n (2)
- wherein
- each R11 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group and an amino group, provided that at least one R11group is replaced by an amino group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- n is an integer of 1 or 2;
- and
- the epoxysilane compound is represented by formula (3):
- (R21)nSi(OR2)4-n (3)
- wherein
- each R21 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group, a glycydoxy group, and a 3,4-epoxycyclohexyl group, provided that at least one R21 group is an alkyl group having 1 to 3 carbon atoms replaced by a glycydoxy group or a 3,4-epoxycyclohexyl group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- n is an integer of 1 or 2.
22 more elements
A coating comprising:
- 100 parts by weight of a cured matrix comprising units of alkoxysilanes represented by formula (1), units of aminosilanes represented by formula (2), and units of epoxysilanes represented by formula (3);
- and
- 0.1 to 50 dispersed within parts by weight of polymeric ultraviolet absorber particles said cured matrix, wherein
- the alkoxysilane compounds are represented by formula (1):
- (R1)mSi(OR2)4-m (1)
- wherein
- each R1 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by a methacryloxy group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- m is an integer of 0, 1, or 2;
- the aminosilane compounds are represented by formula (2):
- (R11)nSi(OR2)4-n (2)
- wherein
- each R11 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group and an amino group, provided that at least one R11 group is replaced by an amino group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and
- n is an integer of 1 or 2 ;
- and
- the epoxysilane compounds are represented by formula (3):
- (R21)nSi(OR2)4-n (3)
- wherein
- each R21 is individually an alkyl group having 1 to 4 carbon atoms, a vinyl group, a phenyl group, or an alkyl group having 1 to 3 carbon atoms replaced by at least one group selected from the group consisting of a methacryloxy group, a glycydoxy group, and a 3,4-epoxycyclohexyl group, provided that at least one R21 group is an alkyl group having 1 to 3 carbon atoms replaced by a glycydoxy group or a 3,4-epoxycyclohexyl group,
- each R2 is an alkyl group having 1 to 4 carbon atoms, and n is an integer of 1 or 2.
18 more elements
Dependencies are inferred from the claim text.