Patent ID: 6509086
Filing Date: 2003-01-21
Classification: B32B,C08F,C08G,C08L,Y10T

Abstract:
Backed sanitaryware comprising an acrylic polymer moulding, a reverse of which is reinforced with a polymer material containing neither glass fibre nor asbestos, wherein said polymer material is firmly bonded to the acrylic polymer moulding, wherein the polymer material is produced by curing a polymerizable, cold-curing reactive (meth)acrylate system applied onto the reverse of the acrylic polymer moulding,wherein the polymerizable, cold-curing reactive (meth)acrylate system comprises (A)â€‚a)(meth)acrylate30-100 wt. %a1)methyl (methacrylate)â€‚â€‰0-99.8 wt. %a2)C2â€”C4 (meth)acrylateâ€‚â€‰0-99.8 wt. %a3)&gE;C5 (meth)acrylate0-50 wt. %a4)polyfunctional (meth)acrylates0-50 wt. %a5)urethane (meth)acrylates0.2-50 wt. %â€‚â€‰â€‚b)comonomers0-70 wt. %b1)vinyl aromatics0-35 wt. %b2)vinyl esters0-35 wt. %wherein components a1) to b2) are selected such that, together, components a1) to b2) amount to 100 wt. %, (B) per 1 part by weight of A), 0.05-5 parts by weight of a (pre)polymer soluble or swellable in A), wherein (B) comprises PMMA lacquer beads obtained by suspension polymerization, an emulsion polymer, ground material from a recycling process or a mixture thereof, wherein the PMMA lacquer beads have an average particle diameter of up to 0.8 mm; (C) a redox system containing an accelerator and a peroxide catalyst or initiator in a quantity sufficient for cold-curing component A), which redox system is to be kept entirely or partially segregated until the constituents of the polymerisable, cold-curing reactive (meth)acrylate system to be polymerised are polymerised (D) conventional additives; and (E) 0-75 wt. % of fillers relative to the sum of A)-E).