Process for producing molded article using a releasing agent

Abstract

Abstract A process for producing a molded article is provided including a) The surface of a mold is cooled with a releasing agent for powder molding which has, as an essential component, a copolymer AB derived from at least one monomer A represented by the following general formula (I) ##STR1## wherein X is a hydrogen atom or a methyl group, k is an integer of 0-5, l is an integer of 1-3, m is an integer of 1-3, n is an integer of 0-550 and Y is a methyl group or a fluorine atom-containing substituent having 1-20 carbon atoms, and at least one vinyl-polymerizable monomer B containing at least one alkyl acrylate or alkylmethacrylate wherein the alkyl group has 1 to 8 carbon atoms. b) The coated mold is heated. c) A powder of a non-rigid vinyl chloride resin containing a plasticizer is allowed to adhere to the heated mold to melt the powder. d) The mold, releasing agent and powder are cooled to form a molded article. e) The molded article is peeled from the mold. Monomer A and monomer B are combined in proportions within the copolymer AB such that the film of releasing agent has good compatibility with the vinyl chloride resin and sufficient releasability from the mold such that the film migrates to the surface of the molded article at the time of peeling.

Inventors

• 👤 Katsuoki Uemura
• 👤 Masaru Ando
• 👤 Jun-Ichi Yamauchi
• 👤 Yoshinori Akutsu

Bibliographic Details