Method for manufacturing thin-walled articles from...

Details Method for manufacturing thin-walled articles from... Method for manufacturing thin-walled articles from...

B - Operations, Transporting

29

C

18/1077

B29C 51/42 (2006.01) B29C 47/88 (2006.01)

Patent

CA 1114126

Abstract of the Disclosure The present invention relates to an improved method for manu- facturing thin-walled articles from crystalline thermoplastic material by thermoforming a web of said material. The method includes providing a web of said material wherein the inner core of the web is at a temperature higher than the upper limit of the critical crystalline melting temperature range while the outer surface regions of the web are at a temperature lower than the lower limit of the critical crystalline melting temperature range. The web is then subjected to thermoforming with or without heating of the outer surface regions.

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