Patent ID: 8101267

Claim:
A high strength safety glass laminate consisting essentially of two rigid sheets of glass and a multilayer polymeric laminate, wherein the multilayer polymeric laminate consisting essentially of three layers of ionomeric materials laminated such that the two outer layers of the multilayer polymeric laminate are on either side of the inner layer, wherein each of the ionomeric materials independently comprise a copolymer of an alpha olefin and an alpha, beta-ethylenically unsaturated carboxylic acid partially neutralized with metal ions, wherein the inner layer of ionomeric material has a modulus (as measured in accordance with ASTM D 638-03 (2003)) of from about 3,000 psi to about 10,000 psi and the two outer layers of ionomeric materials each has a modulus (as measured in accordance with ASTM D 638-03 (2003)) of from about 30,000 psi to about 80,000 psi, wherein the inner layer of ionomeric material has a thickness of about 20 mils or greater, wherein each of the two outer layers of ionomeric materials has a thickness of at least about 1 mil or greater, wherein the total thickness of the multilayer polymeric laminate is from about 60 mils to about 250 mils, wherein the two rigid sheets are positioned on opposite sides of the multilayer polymeric laminate, and wherein the inner layer of ionomeric material contains an unsaturated comonomer selected from the group consisting of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, isopropyl acrylate, isopropyl methacrylate, butyl acrylate, butyl methacrylate, isobutyl acrylate, isobutyl methacrylate, tert-butyl acrylate, tert-butyl methacrylate, octyl acrylate, octyl methacrylate, undecyl acrylate, undecyl methacrylate, octadecyl acrylate, octadecyl methacrylate, dodecyl acrylate, dodecyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, isobornyl acrylate, isobornyl methacrylate, lauryl acrylate, lauryl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, glycidyl acrylate, glycidyl methacrylate, poly(ethylene glycol)acrylate, poly(ethylene glycol)methacrylate, poly(ethylene glycol) methyl ether acrylate, poly(ethylene glycol) methyl ether methacrylate, poly(ethylene glycol) behenyl ether acrylate, poly(ethylene glycol) behenyl ether methacrylate, poly(ethylene glycol) 4-nonylphenyl ether acrylate, poly(ethylene glycol) 4-nonylphenyl ether methacrylate, poly(ethylene glycol) phenyl ether acrylate, poly(ethylene glycol) phenyl ether methacrylate, dimethyl maleate, diethyl maleate, dibutyl maleate, dimethyl fumarate, diethyl fumarate, dibutyl fumarate, dimethyl fumarate, vinyl acetate, vinyl propionate and mixtures thereof.