Patent ID: RE43983

Claim:
Vinyl A vinyl ester resins having a defined multi-modal molecular weight distribution resin comprising a reaction product of a reaction mixture comprising at least one low molecular weight vinyl ester that is derived from only a vinyl carboxylic acid or a blend of vinyl carboxylic acids and an epoxy resin or a combination of epoxy resins that is liquid or crystalline at 25° C. and at least one high molecular weight vinyl ester that is derived from only a vinyl carboxylic acid or a blend of vinyl carboxylic acids and an epoxy resin or a combination of epoxy resins that is amorphous and solid at 25° C. ; selected from the group consisting of an epoxy resin derived from bisphenol A, an epoxy resin derived from hexafluorobisphenol A, an epoxy resin derived from bisphenol E, an epoxy resin derived from bisphenol F, an epoxy resin derived from tetramethyl bisphenol E, an epoxy resin derived from tetramethyl bisphenol F, an epoxy resin derived from bisphenol M, an epoxy resin derived from bisphenol C, an epoxy resin derived from bisphenol P, an epoxy resin derived from bisphenol Z, an epoxy resin derived from methacrylates of ethoxylated bisphenols, an epoxy resin derived from acrylates of ethoxylated bisphenols, epoxy novolacs, acrylates of tris-hydroxyphenylmethane glycidyl ether, ethoxy phenol novolacs, an epoxy resin derived from ethoxylated tris-hydroxyphenylmethane and brominated versions of these epoxy resins, and from 0% up to 60% by weight of a reactive diluent, wherein said vinyl ester resin has a defined multi-modal molecular weight distribution.