Process for forming an extrusion-blow molded ultrathin container

Details Process for forming an extrusion-blow molded ultrathin container Process for forming an extrusion-blow molded ultrathin container

1989-10-31

1991-06-04

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264521, 264536, 425526, 425527, B29C 3342, B29C 4904, B29C 4950

Patent

active

050212095

ABSTRACT:
Apparatus and a related process for blow molding an ultra thin plastic film bag in which sufficient heat is generated in the process to form an effective heat seal or weld along an edge of the bag. The blow mold halves are provided with laterally aligned, outwardly extending projections intermediate upper and lower edges of vertical parting wall surfaces of the mold halves. The projections and cavities formed above and below the projections are configured so that the temperature of the plastic during blow molding and pinch off above the melting point of the plastic to heat seal an edge of the bag. The invention also provides an ultra thin film plastic bag formed with a heat sealed bottom seam.

REFERENCES:
patent: 4105730 (1978-08-01), Cammarata et al.

Affiliated with

Also associated with

Rating

Process for forming an extrusion-blow molded ultrathin container does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for forming an extrusion-blow molded ultrathin container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for forming an extrusion-blow molded ultrathin container will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1025138