Process and coating compound for producing UV or UV/IR or IR/UV hardened coatings
First Claim
1. Process for producing UV or UV/IR or IR/UV hardened coatings on substrates by the application of a coating compound to the substrate to be coated and by the action of UV radiation, or combined UV/IR or combined IR/UV radiation on the coated substrate, characterized in that a coating compound of a component A, which is a solution of a complexed, metal organic compound with polymerizable ligands and which is obtained by reacting, optionally in an inert solvent, a metal organic compound of general formula (I) ,
in which the radicals R are the same or different, M=Ti or Zr and R=Hal OHOR'"'"' or O-(CH2 -CH2 O--)m R'"'"', with m=1 to 3, Hal=Cl or Br and R'"'"'=alkyl, alkenyl, alkynyl or acyl, in each case with 1 to 18 C-atoms,with one or more singly or multiply ethylenically unsaturated chelating agents having at least two oxygen donor atoms and which are used in a quantity of 0.5 to 10 mole, based on 1 mole of MR4, as sequestrants,a component B,which is a hydrolyzate of one or more radically polymerizable alkoxy silanes and which is obtained by the hydrolysis of one or more radically polymerizable alkoxy silanes of general formula (II), ##STR4## with n=2 or 3, in which the radicals R, R1 and R2, which are the same or different, R has the same meaning as in formula (I), R1 is an alkylene radical with 1 to 8 C-atoms and R2 is an H-atom or a hydrocarbon radical, preferably an alkyl radical, with 1 to 8 C-atoms,in which the hydrolysis, optionally in an inert solvent, is performed with a smaller, but at least half the water quantity necessary for the complete hydrolysis of all the alkoxy groups,
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Abstract
A process for producing UV or UV/IR or IR/UV-hardened coatings on substrates by applying a coating compound to the substrate to be coated and by the action of UV radiation, or combined UV/IR or IR/UV radiation, as well as UV or UV/IR or IR/UV-hardenable coating compounds comprising a component A, which is a solution of a complexed, metal organic Ti or Zr compound with polymerizable ligands, a component B, which is a hydrolyzate of one or more radically polymerizable alkoxy silanes of general formula ##STR1## and 0.1 to 5% by weight of a component C, which is an initiator for the polymerization.
38 Citations
22 Claims
- 1. Process for producing UV or UV/IR or IR/UV hardened coatings on substrates by the application of a coating compound to the substrate to be coated and by the action of UV radiation, or combined UV/IR or combined IR/UV radiation on the coated substrate, characterized in that a coating compound of a component A, which is a solution of a complexed, metal organic compound with polymerizable ligands and which is obtained by reacting, optionally in an inert solvent, a metal organic compound of general formula (I) ,
- space="preserve" listing-type="equation">MR.sub.4 (I)
in which the radicals R are the same or different, M=Ti or Zr and R=Hal OHOR'"'"' or O-(CH2 -CH2 O--)m R'"'"', with m=1 to 3, Hal=Cl or Br and R'"'"'=alkyl, alkenyl, alkynyl or acyl, in each case with 1 to 18 C-atoms, with one or more singly or multiply ethylenically unsaturated chelating agents having at least two oxygen donor atoms and which are used in a quantity of 0.5 to 10 mole, based on 1 mole of MR4, as sequestrants, a component B, which is a hydrolyzate of one or more radically polymerizable alkoxy silanes and which is obtained by the hydrolysis of one or more radically polymerizable alkoxy silanes of general formula (II), ##STR4## with n=2 or 3, in which the radicals R, R1 and R2, which are the same or different, R has the same meaning as in formula (I), R1 is an alkylene radical with 1 to 8 C-atoms and R2 is an H-atom or a hydrocarbon radical, preferably an alkyl radical, with 1 to 8 C-atoms, in which the hydrolysis, optionally in an inert solvent, is performed with a smaller, but at least half the water quantity necessary for the complete hydrolysis of all the alkoxy groups, - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22)
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2. 1 to 5% by weight of a component C, which is an initiator for the polymerization,
and optionally conventional additives, the molar ratio of the hydrolyzable compound (II) to the complexed compound MR4 being between 10: - 4 and 10;
0.1.
- 4 and 10;
- 15. A process for producing a hardenable coating compound on a substrate, the method consisting essentially of mixing and polymerizing a compound consisting essentially of a component A,
which is a solution of a complexed, metal organic compound with polymerizable ligands and obtained by reacting, optionally in an inert solvent, a metal organic compound of general formula (I) - space="preserve" listing-type="equation">MR.sub.4 (I)
in which the radicals R, which are the same or different, M=Ti or ZR and R=Hal, OH, OR'"'"' or O--(CH2 CH2 O--)mR'"'"', with m=1 to 3, Hal=Cl or Br and R'"'"'=alkyl, alkenyl, alkynyl, or acyl, in each case with 1 to 18 C-atoms, with one or more singly or multiply ethylenically unsaturated chelating agents having at least two oxygen donor atoms and used in a quantity of 0.5 to 10 mole, based on 1 mole or MR4, as sequestrants, a component B, which is a hydrolyzate of one or more radically polymerizable alkoxy silanes and obtained by hydrolysis of one or more radically polymerizable alkoxy silanes of general formula (II) ##STR5## with n=2 or 3, in which the radicals R, R1 and R2, which are in each case the same or different, R has the same meaning as in formula (I), R1 is an alkylene radical with 1 to 8 C-atoms and R2 is a H-atom or a hydrocarbon radical, preferably an alkyl radical, with 1 to 8 C-atoms, in which the hydrolysis is performed with a smaller, but at least half the water quantity necessary for the complete hydrolysis of all the alkoxy groups, and
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16. 1 to 5% by weight of a component C, which is an initiator for the polymerization,
the molar ratio of the hydrolyzable compound (II) to the complexed compound MR4 in the coating compound being between about 10: - 4 and 10;
0.1.
- 4 and 10;
Specification
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- Resources
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Current AssigneeFraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
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Original AssigneeFraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
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InventorsAmberg-Schwab, Sabine, Arpac, Ertugrul, Glaubitt, Walther, Greiwe, Klaus
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Primary Examiner(s)Beck, Shrive
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Assistant Examiner(s)CAMERON, ERMA C
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Application NumberUS08/524,472Time in Patent Office453 DaysField of Search427/387, 427/515, 427/508, 427/493, 427/521US Class Current427/493CPC Class CodesC08F 230/00 Copolymers of compounds hav...C09D 4/00 Coating compositions, e.g. ...
