Method of controlling gloss on extrudate

Details Method of controlling gloss on extrudate Method of controlling gloss on extrudate

1993-03-08

1993-11-23

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling heat transfer with molding material

26417719, 2642097, 26421112, 2642112, 4253791, B29C 4788

Patent

active

052641643

ABSTRACT:
A method of using a plastic extruder equipped with an extrusion die and a gloss controlling auxiliary die to produce an extrudate of polymeric material having controlled gloss appearance comprising the steps of first extruding an extrudate of polymeric material through the extrusion die and then passing the extrudate immediately after exiting from the extrusion die through a gloss controlling auxiliary die which is kept at a temperature either higher or lower than the temperature of the extrusion die.

REFERENCES:
patent: 2583329 (1952-01-01), Eckert
patent: 2583330 (1952-01-01), Eckert
patent: 2791801 (1957-05-01), Szantay
patent: 3221084 (1965-11-01), Peticolas
patent: 4088434 (1978-05-01), Fukuda et al.
patent: 4842504 (1989-06-01), Bentivoglio et al.
patent: 5132062 (1992-07-01), Brambilla

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