Method for using molding
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United States of America Patent
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Oct 24, 1995
Grant Date -
N/A
app pub date -
Aug 31, 1992
filing date -
Sep 12, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There are disclosed a method for using a molding which comprises using a molding produced by thermoforming a sheet for thermoforming comprising a styrenic polymer having a high degree of syndiotactic configuration or a composition thereof in an atmosphere containing a chlorofluorohydrocarbon and also a method for using a molding which comprises using a molding produced by thermoforming a laminate comprising at least one surface layer of the above styrenic polymer or a composition thereof and an other layer of a thermoplastic resin or a composition thereof in an atmosphere the same as above-mentioned. The moldings to be employed in the present invention are excellent in chemical resistance, solvent resistance and resistance against CFC and HCFC, and the sheet for thermoforming and the laminate are useful as the starting raw materials for the aforesaid molding. According to the present invention, the moldings can be used without any problem as the inner liners of refrigerators (including internals inside door) in an atmosphere of chlorofluorohydrocarbon or in contact with heat-insulating material such as polyurethane foam, and the scrap resins at the time of molding can be recovered and readily reused.
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