Direct processing of polymer with pulverulent additives in injec

Details Direct processing of polymer with pulverulent additives in injec Direct processing of polymer with pulverulent additives in injec

1989-06-05

1991-05-21

Hornsby, Harvey C.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 89, B29B 742

Patent

active

050170155

ABSTRACT:
In a method for processing granulate and/or pulverulent polymer with pulverulent additives in an injection moulding machine having a screw with a feed zone of constant screw core diameter, and intermediate zone with a compression and metering section and a mixing element array, with regard to particularly economic processing to high quality injection mouldings the polymer and the pulverulent additives are introduced without previous preparation directly into the feed zone of the screw and in the feed zone the polymer is thoroughly mixed with the pulverulent additives at least twice by means of mixing element arrays, the working length of the screw for the processing having at least 19 times the screw diameter.

REFERENCES:
patent: 2753595 (1956-07-01), Dulmage
patent: 3195868 (1965-07-01), Loomans et al.
patent: 3690623 (1972-09-01), Boyne
patent: 3787542 (1974-01-01), Gallagher et al.
patent: 4015833 (1977-04-01), Kim
patent: 4074362 (1978-02-01), Kruder et al.
patent: 4474473 (1984-10-01), Higuchi et al.
patent: 4534652 (1985-08-01), Stade
patent: 4616989 (1986-10-01), Mewes et al.
patent: 4652138 (1987-03-01), Inoue et al.
patent: 4663103 (1987-05-01), McCullough et al.
patent: 4729666 (1988-03-01), Takubo
patent: 4752135 (1988-06-01), Loomans
Spirex, "Screw and Barrel Technology", 1985 (month unknown).

Affiliated with

Also associated with

Rating

Direct processing of polymer with pulverulent additives in injec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct processing of polymer with pulverulent additives in injec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct processing of polymer with pulverulent additives in injec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-234135