Patent ID: 9150006
Filing Date: 2015-10-06
Classification: B32B,Y10T

Abstract:
1. A thermoplastic article obtained by contacting a laminate comprising a first sheet material and a second sheet material with heat and pressure using a heated element which results in the simultaneous bonding of the sheet material; wherein the first and second sheet materials are formed from a copolyester having an inherent viscosity of 0.5 to 1.2 dL/g, when measured at 25° C. using 0.50 grams of polymer per 100 mL of a solvent consisting of 60 weight percent phenol and 40 weight percent tetrachloroethane comprising: (i) diacid residues comprising at least 80 mole percent terephthalic acid residues; and (ii) diol residues consisting essentially of ethylene glycol residues and neopentyl glycol residues in a mole ratio of ethylene glycol to neopentyl glycol of from about 38:62 to 88:12, wherein the laminate has an interfacial adhesion at least about 1.5 times greater than a laminate with diol residues consisting essentially of ethylene glycol residues and 1,4-cyclohexanedimethanol residues in a mole ratio of ethylene glycol to 1,4-cyclohexanedimethanol of from about 38:62 to 88:12.