Process for preparation of a pelu00eccula or sheet or foil, and pelu00eccula

摘要

"Process for the preparation of a pelu00eccula or sheet, and pelu00eccula or leaf".A film or sheet with a glass transition temperature below about 23 198 C and a melting temperature above about 120 198 C is prepared by preparing first a COmposiu00e7u00e3o polyester of about 50 to about 95 percent by weight of a copoliu00e9ster base with a melting temperature less than approximately 220 198 C and with higher crystallinityR approximately 1 percent after annealing for 2000 minutes at a temperature at which the copoliu00e9ster base has a maximum rate of crystallization; and from about 5 to about 50 percent by weightOf a plasticizer suitable for use with the copoliu00e9ster based. The polyester composition is formed to a film or sheet.During the formation of the film or sheet, or later, is to provide a film or sheet crystallization, soft and flexible.