Patent ID: 6433098
Filing Date: 2002-08-13
Classification: C08F,C08K,C08L,C11D

Abstract:
A process of preparing a curable composition 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 the monomer A has at least one functional group which remains substantially unreacted during the oligomerization process; or (ii) oligomerizing a mixture comprising a monomer A equivalent and a monomer B and generating the at least one functional group during or after the oligomerization process; wherein the oligomer has a first number of monomer units incorporated into its backbone; and wherein the oligomerization process is conducted at a temperature in the range of from 150Â° C. to 650Â° C., a pressure in the range of from 3 MPa to 35 MPa which is sufficient to maintain the mixture in a fluid state and a residence time in the range of from 0.1 second to 1 minute; (b) reacting a modifier having at least one reactive moiety with the oligomer through a reaction under a second condition between the reactive moiety of the modifier and the functional group incorporated into the oligomer to produce the curable composition, wherein the 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 the curable group remains pendant in the curable composition and crosslinkable after the reaction.