Method of manufacturing thermoplastic polyester foam sheet

Details Method of manufacturing thermoplastic polyester foam sheet Method of manufacturing thermoplastic polyester foam sheet

1996-06-11

1998-03-03

Cooney, Jr., John M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 74, 521 79, 264 458, 264 50, 264165, 26417717, 26417719, 2642103, 26421113, 2642112, C08J 904

Patent

active

057235104

ABSTRACT:
A method of manufacturing a thermoplastic polyester foam sheet comprises forming a roll by overlapping a thermoplastic polyester sheet and a separator on each other and rolling them, impregnating an inert gas into the thermoplastic polyester sheet while the roll is kept in a pressurized inert gas atmosphere, and foaming the thermoplastic polyester sheet by heating it under atmospheric pressure.

REFERENCES:
patent: 4473665 (1984-09-01), Martini-Vvedensky

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