Injection molding screw for processing heat sensitive polymeric

Details Injection molding screw for processing heat sensitive polymeric Injection molding screw for processing heat sensitive polymeric

1978-07-13

1980-12-23

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 89, 366343, B29B 106

Patent

active

042407559

ABSTRACT:
An injection molding screw for use in processing heat sensitive polymeric materials and a process for plasticating such materials. The screw has an inlet end, a discharge end, means for mounting a backflow valve on the discharge end, and at least one section which applies high shear and high compression to the polymeric material and controls the material flow rate. A flighted screw section is disposed between the high shear and high compression section and the discharge end; that screw section includes means for decompressing the polymeric material and pumping it to the discharge end of the screw in the decompressed state at a rate at least equal to the pumping rate of the zone of high shear and high compression.

REFERENCES:
patent: 3131433 (1964-05-01), Volland
patent: 3737151 (1973-06-01), Schaeffer
patent: 3850414 (1974-11-01), Scharer
patent: 3868093 (1975-02-01), Sokolow
patent: 3936038 (1976-02-01), Olmsted
patent: 3954366 (1976-05-01), Fields
patent: 4053143 (1977-10-01), Hosokawa

Affiliated with

Also associated with

Rating

Injection molding screw for processing heat sensitive polymeric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Injection molding screw for processing heat sensitive polymeric , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection molding screw for processing heat sensitive polymeric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2240274