Method for the use of gas assistance in the molding of plastic a

Details Method for the use of gas assistance in the molding of plastic a Method for the use of gas assistance in the molding of plastic a

1989-09-18

1990-08-14

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

264154, 264155, 264161, 2643281, 26432812, 425812, B29C 4500, B29C 4534, B29C 4538

Patent

active

049485474

ABSTRACT:
A method of gas-assisted injection molding in which a charge of pressurized gas is injected into the mold, but not into the article-defining cavity. The gas charge is of a predetermined quantity and pressure sufficient to assist in filling out the article-defining cavity with resin and promoting surface quality. In another feature, the gas pressure within the resulting molding may be relieved by separating the mold halves and permitting the gas-containing portion of the molding to self-rupture, or by means well known in the art.

REFERENCES:
patent: 2435610 (1948-02-01), Schneider
patent: 4101617 (1978-07-01), Friederich
patent: 4830812 (1989-05-01), Kauer
Rusch, K. C. "Gas-Assisted Injection Molding--The New Thermoplastic Molding Technology for Exterior Body Panels".

Affiliated with

Also associated with

Rating

Method for the use of gas assistance in the molding of plastic a 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 for the use of gas assistance in the molding of plastic a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the use of gas assistance in the molding of plastic a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-461233