Method and device for the manufacture of a sheet of polyvinylbut

Details Method and device for the manufacture of a sheet of polyvinylbut Method and device for the manufacture of a sheet of polyvinylbut

1988-10-26

1990-09-04

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26106, 264342RE, 425135, 425367, B29C 4788

Patent

active

049543067

ABSTRACT:
Sheet of polyvinyl butyral is extruded, it is subjected to a humidifying and relaxation treatment by maintaining it stretched between rollers, the sheet of polyvinylbutyral is passed through a cold zone, in particular around cooling drums, so as to fix it, the sheet is rolled under a given tension, and prior to fixing the sheet in the cold zone, the sheet is allowed to form at least one free loop.

REFERENCES:
patent: 2947060 (1960-08-01), Umstott
patent: 3038206 (1962-06-01), Eccles
patent: 3255567 (1966-07-01), Keslar et al.
patent: 3868286 (1975-02-01), Fariss et al.
patent: 4093695 (1978-06-01), Heirbaut
patent: 4425406 (1984-01-01), Palma
French Search Report FR 8714764 (FA 402109) dated July 15, 1988.

Affiliated with

Also associated with

Rating

Method and device for the manufacture of a sheet of polyvinylbut does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for the manufacture of a sheet of polyvinylbut, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for the manufacture of a sheet of polyvinylbut will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-440369