Radiation-curable coatings and their use
First Claim
1. A coating composition which is curable by means of high-energy radiation, comprising:
- A) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one further functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction, B) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one additional functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction, wherein the additional reactive functional group is complementary to or reactive towards the further reactive functional groups of component A), C) at least one compound selected from the group consisting of monomeric, oligomeric, and polymeric compounds having at least one functional group reactive for the purposes of a reaction selected from the group consisting of an addition reaction and a condensation reaction with the functional groups from component A) or component B), D) one or more photoinitiators as well as E) optionally, at least one of solvents, water, pigments, extenders and conventional lacquer additives, wherein component A) and component B) differ from each other and component C) contains no free-radically polymerizable double bonds.
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Accused Products
Abstract
This invention relates to radiation-curable coating compositions which contain
A) compounds having one or more free-radically polymerisable double bonds which additionally contain at least one further functional group reactive for the purposes of an addition and/or condensation reaction,
B) compounds having one or more free-radically polymerisable double bonds, which additionally contain at least one further functional group reactive for the purposes of an addition and/or condensation reaction, wherein the additional reactive functional group is complementary to or reactive towards the additional reactive functional groups of component A),
C) optionally at least one monomeric, oligomeric and/or polymeric compound having at least one functional group reactive towards the functional groups from component A) or component B)
D) one or more photoinitiators as well as
E) optionally solvents, water, pigments and/or extenders as well as conventional lacquer additives,
wherein component A) and component B) differ from each other and component C) contains no free-radically polymerisable double bonds. The coating compositions are useful for the production of multilayer lacquer coatings, in particular automotive repair lacquer coating.
115 Citations
9 Claims
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1. A coating composition which is curable by means of high-energy radiation, comprising:
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A) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one further functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction, B) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one additional functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction, wherein the additional reactive functional group is complementary to or reactive towards the further reactive functional groups of component A), C) at least one compound selected from the group consisting of monomeric, oligomeric, and polymeric compounds having at least one functional group reactive for the purposes of a reaction selected from the group consisting of an addition reaction and a condensation reaction with the functional groups from component A) or component B), D) one or more photoinitiators as well as E) optionally, at least one of solvents, water, pigments, extenders and conventional lacquer additives, wherein component A) and component B) differ from each other and component C) contains no free-radically polymerizable double bonds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
applying a said coating composition as at least one member selected from the group consisting of a surfacer, base lacquer, clear lacquer and pigmented single layer topcoat lacquer.
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9. A method for using the coating compositions according to claim 1, comprising:
applying at least one of the coating compositions for automotive repair lacquer coating.
Specification