Process of producing thermoplastic resin sheet and equipment the

Details Process of producing thermoplastic resin sheet and equipment the Process of producing thermoplastic resin sheet and equipment the

1988-02-23

1989-09-05

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling rate of movement of molding material or its...

2641761, 264180, 26421123, 264237, 264349, 425 71, 425145, 425149, 425205, B29C 4710

Patent

active

048636533

ABSTRACT:
This invention relates to a process of producing a thermoplastic resin sheet and equipment therefore. The equipment includes a first extruder of a high kneading type, a second extruder of a low kneading type and an extrusion die. A film-shaped resin extruded from the extrusion die is cooled by a cooling device, to thereby obtain the resin sheet. Additionally, a difference between pressures at the outlets of the first and second extruders is detected, and, in response to this difference between the pressures thus detected, the operating conditions of the first extruder are automatically controlled.

REFERENCES:
patent: 3148231 (1964-09-01), Spencer
patent: 3261056 (1966-07-01), Fritsch
patent: 3467743 (1969-09-01), Otani
patent: 3764118 (1973-10-01), Matsuoka
patent: 3860220 (1975-01-01), Matsubayashi et al.
patent: 4117063 (1978-09-01), Voigt et al.
patent: 4134714 (1979-01-01), Driskill
patent: 4452750 (1984-06-01), Handwerk et al.
patent: 4548778 (1985-10-01), Fujii
patent: 4666649 (1987-05-01), Takubo et al.
patent: 4729666 (1988-03-01), Takubo

Affiliated with

Also associated with

Rating

Process of producing thermoplastic resin sheet and equipment the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of producing thermoplastic resin sheet and equipment the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of producing thermoplastic resin sheet and equipment the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-241944