System and method for making sheets, films, and objects...

Details System and method for making sheets, films, and objects... System and method for making sheets, films, and objects...

2011-04-26

2011-04-26

Tucker, Philip C (Department: 1745)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S173160, C264S172110, C264S040100, C264S040300, C425S149000, C422S224000

Reexamination Certificate

active

07931842

ABSTRACT:
A system for making sheets, films, and objects including a reactor-dryer for reacting at least one monomer to produce a polymer melt; a flash melter in communication with the reactor-dryer for heating the polymer melt received from the reactor-dryer; a flash tank in communication with the flash melter for removing volatile compounds from the polymer melt; and a control loop in communication with the flash tank for controlling the pressure of the polymer melt from the flash tank to a die forming unit. Methods of making sheets, films, and objects is further included.

REFERENCES:
patent: 5274029 (1993-12-01), Kelley
patent: 5540813 (1996-07-01), Sosa et al.
patent: 5651928 (1997-07-01), Hodan et al.
patent: 5681918 (1997-10-01), Adams et al.
patent: 6143833 (2000-11-01), Klussmann et al.
patent: 6906164 (2005-06-01), DeBruin

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