Process for manufacturing bodies of polymeric material, having a

Details Process for manufacturing bodies of polymeric material, having a Process for manufacturing bodies of polymeric material, having a

1994-11-28

1997-03-11

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 53, B29C 4406

Patent

active

056098030

ABSTRACT:
A process for producing bodies of polymeric material having an outer shell and a core of foamed material is disclosed. The process includes the steps of: providing a mold having a pair of separable half-molds arranged facing each other; extruding a tubular thermoplastic parison between the half-molds; closing the half-molds around the parison, thereby defining a hollow space between the parison and walls of the mold; injecting into the inside of the parison a thermoplastic polymeric material admixed with a physical blowing agent, the parison expanding into contact with the walls of the mold, and conforming to the shape of the mold; and removing the article form the mold.

REFERENCES:
patent: 3088166 (1963-05-01), Colombo
patent: 3378612 (1968-04-01), Dietz et al.
patent: 3389197 (1968-06-01), Flynn et al.
patent: 3736201 (1973-05-01), Teraoka
patent: 3792140 (1974-02-01), Schiemann
patent: 3875275 (1975-04-01), Lemelson
patent: 3901958 (1975-08-01), Doll
patent: 4092385 (1978-05-01), Balevski et al.
patent: 4149839 (1979-04-01), Iwawaki et al.
patent: 4668567 (1987-05-01), Williams
patent: 4874649 (1989-10-01), Daubenbuchel et al.
patent: 5093054 (1992-03-01), Hirota
patent: 5152856 (1992-10-01), Thein et al.
patent: 5328651 (1994-07-01), Gallagher et al.
patent: 5366674 (1994-11-01), Hattori et al.
patent: 5368458 (1994-11-01), Addeo et al.

Affiliated with

Also associated with

Rating

Process for manufacturing bodies of polymeric material, having 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 Process for manufacturing bodies of polymeric material, having a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing bodies of polymeric material, having a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-440862