Patent ID: 9340642
Filing Date: 2016-05-17
CPC Classification: C06B,C08G,C08L,C09D

Claim Text:
1. A method of forming a crosslinked polyether polymer comprising the steps of forming an admixture of at least one hydroxy terminated oligomer, at least one epoxy terminated oligomer and at least one metal trifluoromethanesulfonate salt catalyst, and curing the resultant admixture at 30 to 85° C., wherein the at least one hydroxy terminated oligomer is a dihydroxy terminated oligomer of formula (ia) wherein A is a monomer repeat unit, m is the average number of monomer repeat units in the range of from 5 to 100, the at least one epoxy terminated oligomer is di-epoxy oligomer of formula (iia) wherein B is a monomer repeat unit, n is the average number of monomer repeat units in the range of from 5 to 100; wherein A and B are independently selected from monomer repeat units comprising hydrocarbyl, esters, carbonates, ethers, amides, aromatics, heterocyclic or copolymers comprising mixtures thereof and the admixture optionally comprises a further epoxy terminated oligomer of formula (iii) present in the range of from 5-10% w/w wherein D is a monomer repeat unit, wherein p is the average number of monomer repeat units in the range of 1 to 10000 and z is in the range of from 2.5 to 3, and D is independently selected from monomer repeat units comprising hydrocarbyl, esters, carbonates, ethers, amides, aromatics, heterocyclic or copolymers comprising mixtures thereof.