Abstract: A film or sheet having a glass transition temperature below about 23° C. and a melting temperature greater than about 120° C. is prepared by first preparing a polyester composition of about 50 to about 95 weight percent of a base copolyester having a melting temperature of less than about 220° C. and exhibiting more than about 1 percent crystallinity after annealing for 2000 minutes at a temperature of which the base copolyester has a maximum crystallization rate; and about 5 to about 50 weight percent of a plasticizer suitable for use with the base copolyester. The polyester composition is formed into a film or sheet. During formation of the film or sheet or afterwards, crystallization is induced to provide a soft and flexible film or sheet.

Abstract: A method for determining the temperature distribution throughout the thickness of a preform used in a container reheat stretch blow molding process by measuring the outside surface temperature of a preform or series of preforms at least two times during the period the preform is cooling down after exiting the heat station and before entering the blow molding station in the blow molding machine and calculating the temperature distribution throughout the thickness of the preform based upon the measured outside surface temperatures using a novel algorithm.

Abstract: A method for determining the temperature distribution throughout the thickness of a preform used in a container reheat stretch blow molding process by measuring the outside surface temperature of a preform or series of preforms at least two times during the period the preform is cooling down after exiting the heat station and before entering the blow molding station in the blow molding machine and calculating the temperature distribution throughout the thickness of the preform based upon the measured outside surface temperatures using a novel algorithm.

Abstract: A method for determining the temperature distribution throughout the thickness of a preform used in a container reheat stretch blow molding process by measuring the outside surface temperature of a preform or series of preforms at least two times during the period the preform is cooling down after exiting the heat station and before entering the blow molding station in the blow molding machine and calculating the temperature distribution throughout the thickness of the preform based upon the measured outside surface temperatures using a novel algorithm.

Abstract: A compositional blend of from about 50 to about 99 weight percent of a polyester and from about 1 to about 50 weight percent of an essentially, linear, random aliphatic-aromatic copolyester or branched and/or chain extended copolyester thereof is useful as a heat-shrinkable film.

Abstract: A compositional blend of from about 50 to about 99 weight percent of a polyester and from about 1 to about 50 weight percent of an essentially, linear, random aliphatic-aromatic copolyester or branched and/or chain extended copolyester thereof is useful as a heat-shrinkable film.

Abstract: A calendered film or sheet of a polyester resin composition has a haze value of less than 5 percent. The polyester resin composition comprises a polyester having a crystallization half-time from a molten state of at least 5 minutes and an additive comprising (i) a fatty acid or a salt of a fatty acid containing more than 18 carbon atoms and (ii) an ester wax comprising a fatty acid containing more than 18 carbon atoms with an alcohol containing from 2 to 28 carbon atoms, wherein the ratio of the fatty acid or salt of the fatty acid to the ester wax is 1:1 or greater. Also, the present invention is a process for producing such calendered film or sheet having a haze value of less than 5 percent.

Abstract: A film or sheet having a glass transition temperature below about 23° C. and a melting temperature greater than about 120° C. is prepared by first preparing a polyester composition of about 50 to about 95 weight percent of a base copolyester having a melting temperature of less than about 220° C. and exhibiting more than about 1 percent crystallinity after annealing for 2000 minutes at a temperature of which the base copolyester has a maximum crystallization rate; and about 5 to about 50 weight percent of a plasticizer suitable for use with the base copolyester. The polyester composition is formed into a film or sheet. During formation of the film or sheet or afterwards, crystallization is induced to provide a soft and flexible film or sheet.

Abstract: A calendered film or sheet of a polyester resin composition has a haze value of less than 5 percent. The polyester resin composition comprises a polyester having a crystallization half-time from a molten state of at least 5 minutes and an additive comprising (i) a fatty acid or a salt of a fatty acid containing more than 18 carbon atoms and (ii) an ester wax comprising a fatty acid containing more than 18 carbon atoms with an alcohol containing from 2 to 28 carbon atoms, wherein the ratio of the fatty acid or salt of the fatty acid to the ester wax is 1:1 or greater. Also, the present invention is a process for producing such calendered film or sheet having a haze value of less than 5 percent.