Patent ID: 6147016
Filing Date: 2000-11-14
Classification: B32B,C08G,E04H,Y10T

Abstract:
A laminate sheet comprising:(A) a polyester block copolymer which comprises 20 to 70 wt % of a hard segment consisting of an aromatic polyester comprising terephthalic acid in an amount of at least 60 mol % of the total of all dicarboxylic acid components and tetramethylene glycol in an amount of at least 60 mol % of the total of all diol components, and 80 to 30 wt % of a soft segment consisting of an aromatic polyester comprising at least one diol selected from the group consisting of diols represented by the following formula (1): ##STR4## wherein n is a number of 2 to 5, and aliphatic diols represented by the following formula (2): ##STR5## wherein m is a number of 5 to 12, and R is a hydrogen atom or a methyl group, provided that a plurality of R's may be the same or different,in an amount of at least 60 mol % of the total of all diol components and an aromatic dicarboxylic acid in an amount of at least 60 mol % of the total of all dicarboxylic acid components,the melting point (T,.degree. C.) of the polyester block copolymer satisfying the following expressions (3) and (4):T0-5 >T>T0-60 (3)T>T'+10 (4)wherein T is defined above, T0 is a melting point (.degree. C.) of the aromatic polyester constituting the hard segment, and T' is a melting point (.degree. C.) of a random polymer obtained by adding 0.1 wt % of titanium tetrabutoxide to the polyester block copolymer and melting and kneading at 250.degree. C. for 3 hours; and(B) cloth on at least one side of which the polyester block copolymer is laminated.