Direct processing of polymer with pulverulent additives in injection moulding machines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 1991
Issued Date -
N/A
app pub date -
Jun 5, 1989
filing date -
Jan 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully