Patent ID: 6565935
Filing Date: 2003-05-20
Classification: C04B,C08K,C08L,H01M,Y02E,Y02W,Y10T

Abstract:
A structure for resisting acid solutions, said structure being formed from a filled thermosetting polymer composition comprising:a mineral filler in an amount of at least 92% by weight, wherein the mineral filler consists of a mineral particulate filler with generally rounded edges and comprised of at least 50% by weight of a particle size that is greater than 6 mm, at least 70% by weight of a particle size that is greater than 2.4 mm and at least 85% by weight of a particle size that is greater than 0.4 mm; a thermosetting polymer in an amount not more than 8% by weight, whereby the thermosetting polymer is obtained by reaction of (a) an epoxy resin, wherein the epoxy resin is formed from at least one of Bisphenol A and Bisphenol F, with (b) an amine selected from at least one of an aliphatic amine and a cyclo-aliphatic amine; and a wetting agent, said composition having a co-efficient of thermal expansion that is less than 15Ã—10âˆ’6 in/in/Â° F. and having a density that is at least 95% of the theoretical density for said mineral filler and the thermosetting polymer.