Process for the manufacture of articles of high mechanical stren

Details Process for the manufacture of articles of high mechanical stren Process for the manufacture of articles of high mechanical stren

1982-08-25

1985-04-30

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264 70, 264175, 264237, 264280, 264294, 264320, B29D 708

Patent

active

045143510

ABSTRACT:
The application discloses a process for the preparation of plates, films, sheets, strips, rods, molded parts, objects or profiles of high mechanical strength, from thermoplastic synthetic resinous materials, whereby the thermoplastic material is initially heated in an extruder or a similar installation equipped with a mixing and heating device to at least its melting or softening point, the emerging extruded mass subjected during or after a cooling process in a forming device, pressure drawing device or other accessory installation to at least one pressure stretching at a pressure from about 90 .sup.N /mm.sup.2 to 1500 .sup.N /mm.sup.2, preferably from about 155 .sup.N /mm.sup.2 to 1000 .sup.N /mm.sup.2, and/or to at least one pulsating pressure or shearing pressure treatment. Preferably, the pressure stretched or shearing pressure treated synthetic plastic material is subjected subsequently to at least one further tempering, preferably cooling and/or processing step. To carry out the process, an apparatus is used having at least one accessory device including one or more pressure rams and at least one nozzle, slot or a similar cross-section restriction in the form of an outlet orifice.

REFERENCES:
patent: 3083410 (1963-04-01), McGlamery
patent: 3165505 (1965-01-01), Gaeth
patent: 3184791 (1965-05-01), Gamble et al.
patent: 3409717 (1968-11-01), Nozaki
patent: 3465070 (1969-09-01), Smith et al.
patent: 3532786 (1970-10-01), Coffman
patent: 3554991 (1971-01-01), Griffith
patent: 3574808 (1971-04-01), Matthews et al.
patent: 3686388 (1972-08-01), Beckmann et al.
patent: 3757718 (1973-09-01), Johnson
patent: 3883631 (1975-05-01), Murray
patent: 4110391 (1978-08-01), Berzen et al.
patent: 4234536 (1980-11-01), Thiel et al.
patent: 4272475 (1981-06-01), Chi

Affiliated with

Also associated with

Rating

Process for the manufacture of articles of high mechanical stren 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 for the manufacture of articles of high mechanical stren, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of articles of high mechanical stren will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1967554