Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1979-10-18
1982-04-13
Czaja, Donald E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264320, 5263486, B29B 100, B29B 300
Patent
active
043247563
ABSTRACT:
Shaped articles of polybut-1-ene are made by preheating a polymer blank in the crystalline form II at a temperature between 20.degree. and 90.degree. C. The preheated blank is then press-forged under a pressure between 8 and 100 kgf/mm.sup.2 for a period of 1-40 seconds. During the shaping operation, the polymer is converted into the crystalline form I. Polybut-1-ene shaped articles are formed that have a melting peak, determined by differential thermal analysis, at 119.degree. C.
REFERENCES:
patent: 3686388 (1972-08-01), Beckmann et al.
patent: 3846522 (1974-11-01), Goldman
patent: 4187158 (1980-02-01), Mack
Ball et al., Solid-State Extrusion of Poly(-1-Butene), 15 Polymer Letters Edition 519-526 (1977).
Avenas Pierre
Haudin Jean-Marc
Kepes Andre
Weynant Eric
Czaja Donald E.
Societe Chimique des Charbonnages--CdF Chimie
Thompson W.
LandOfFree
Process for shaping solid polybut-1-ene and the resulting shaped 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 shaping solid polybut-1-ene and the resulting shaped, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for shaping solid polybut-1-ene and the resulting shaped will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1417141