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US 9,067,866 B2Granted
Radiation curable amino(meth) acrylates
AssigneeAllnex Belgium S.A.
InventorsFrancis Bergiers, Thierry Randoux
Life of this patent
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Abstract
The invention relates to amino(meth)acrylates obtained from the reaction of amines with a mixture of epoxy(meth)acrylates and (meth)acrylated diluent and there use for making flexible varnishes, coatings, adhesives and inks.
Claims11
An amino(meth)acrylate produced by a method which comprises:
- reacting a primary or secondary amine (A) with a mixture comprising from 25 to 99% by weight of at least one epoxy(meth)acrylate (B) comprising at least two (meth)acrylate groups and from 1 to 75% by weight of at least one (meth)acrylated diluent (C), based on a total weight of the mixture of (B) and (C), wherein (B) is different from (C),
- wherein the amine (A) is selected from primary amines (A1) comprising at least one primary amino group —NH2 and secondary amines (A2) comprising at least two secondary amino groups —NH, and
- wherein the amino(meth)acrylates have a nitrogen content of at least 1.0% by weight.
A method for preparation of a radiation curable composition suitable for preparation of coatings, inks or varnishes comprising the steps of:
- (i) providing an amino (meth) acrylate produced by a method which comprises reacting a primary or secondary amine (A) with a mixture comprising from 25 to 99% by weight of at least one epoxy(meth)acrylate (B) comprising at least two (meth)acrylate groups and from 1 to 75% by weight of at least one (meth)acrylated diluent (C), based on a total weight of the mixture of (B) and (C), wherein (B) is different from (C),
- wherein the amine (A) is selected from primary amines (A1) comprising at least one primary amino group —NH2 and secondary amines (A2) comprising at least two secondary amino groups —NH,
- wherein the amino(meth)acrylates have a nitrogen content of at least 1.0% by weight, and
- (ii) incorporating said amino (meth) acrylate into a radiation curable composition that is suitable for use as a coating, ink or varnish.
1 more element
Dependencies are inferred from the claim text.