Method of preparing a curable coating and curing thereof

A method for producing a curable coating on a substrate surface comprising:

• (A) applying to said substrate surface a layer of a curable composition;
• and
• (B) drying, or allowing to dry, said layer,
• wherein said curable composition is a composition prepared by a process comprising the steps of:
• (a) forming an oligomer having a Dp in the range of from 3 to 100 by either:
• (i) oligomerizing a mixture comprising a monomer A and a monomer B, wherein said monomer A has at least one functional group which remains substantially unreacted during said oligomerizing;
• or
• (ii) oligomerizing a mixture comprising a monomer A equivalent and a monomer B and generating said at least one functional group during or after said oligomerizing;
• wherein said oligomer has a first number of monomer units incorporated into its backbone;
• and
• wherein said oligomerizing is conducted at a temperature in the range of from 275° C. to 450° C., a pressure in the range of from 3 MPa to 35 MPa which is sufficient to maintain said mixture in a fluid state, and a residence time in the range of from 0.1 second to 4 minutes;
• (b) reacting a modifier having at least one reactive moiety with said oligomer through a reaction under a second condition between said reactive moiety of said modifier and said functional group incorporated into said oligomer to produce said curable composition, wherein said modifier further comprises a curable group selected from the group consisting of a carbon—carbon double bond, an oxygen-containing heterocyclic group and mixtures thereof, and said curable group remains pendant in said curable composition and crosslinkable after said reaction.

A method for producing a curable coating on a substrate surface comprising:

• (A) emulsifying a curable composition in an aqueous medium, optionally in the presence of a surfactant, to form a waterborne formulation;
• (B) applying to said substrate surface a layer of said waterborne formulation;
• and
• (C) drying, or allowing to dry, said layer,
• wherein said curable composition is a composition prepared by a process comprising the steps of:
• (a) forming an oligomer having a Dp in the range of from 3 to 100 by either:
• (i) oligomerizing a mixture comprising a monomer A and a monomer B, wherein said monomer A has at least one functional group which remains substantially unreacted during said oligomerizing;
• or
• (ii) oligomerizing a mixture comprising a monomer A equivalent and a monomer B and generating said at least one functional group during or after said oligomerizing;
• wherein said oligomer has a first number of monomer units incorporated into its backbone;
• and
• wherein said oligomerizing is conducted at a temperature in the range of from 150° C. to 650° C., a pressure in the range of from 3 MPa to 35 MPa which is sufficient to maintain said mixture in a fluid state, and a residence time in the range of from 0.1 second to 1 minute;
• and
• (b) reacting a modifier having at least one reactive moiety with said oligomer through a reaction under a second condition between said reactive moiety of said modifier and said functional group incorporated into said oligomer to produce said curable composition, wherein said modifier further comprises a curable group selected from the group consisting of a carbon—carbon double bond, an oxygen-containing heterocyclic group and mixtures thereof, and said curable group remains pendant in said curable composition and crosslinkable after said reaction.

A method for producing a curable coating on a substrate surface comprising:

• (A) emulsifying a curable composition in an aqueous medium, optionally in the presence of a surfactant, to form a waterborne formulation;
• (B) applying to said substrate surface a layer of said waterborne formulation;
• and
• (C) drying, or allowing to dry, said layer,
• wherein said curable composition is a composition prepared by a process comprising the steps of:
• (a) forming an oligomer having a Dp in the range of from 3 to 100 by either:
• (i) oligomerizing a mixture comprising a monomer A and a monomer B, wherein said monomer A has at least one functional group which remains substantially unreacted during said oligomerizing;
• or
• (ii) oligomerizing a mixture comprising a monomer A equivalent and a monomer B and generating said at least one functional group during or after said oligomerizing;
• wherein said oligomer has a first number of monomer units incorporated into its backbone;
• and
• wherein said oligomerizing is conducted at a temperature in the range of from 275° C. to 450° C., a pressure in the range of from 3 MPa to 35 MPa which is sufficient to maintain said mixture in a fluid state, and a residence time in the range of from 0.1 second to 4 minutes;
• (b) reacting a modifier having at least one reactive moiety with said oligomer through a reaction under a second condition between said reactive moiety of said modifier and said functional group incorporated into said oligomer to produce said curable composition, wherein said modifier further comprises a curable group selected from the group consisting of a carbon—carbon double bond, an oxygen-containing heterocyclic group and mixtures thereof, and said curable group remains pendant in said curable composition and crosslinkable after said reaction.