Process for the production of a foldable blank of plastic foam b

Details Process for the production of a foldable blank of plastic foam b Process for the production of a foldable blank of plastic foam b

1993-11-18

1996-10-29

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264146, 264148, 264150, 264284, 264285, 264293, 264295, 2642975, 264321, B29C 4420, B29C 5902

Patent

active

055694217

ABSTRACT:
Blanks serving for the production of insulating material and folding packs have to be provided with folding and bending lines. These folding and bending lines in the plastic foam must not break when the blank is folded. This is achieved according to the invention by embossing the folding and bending lines for forming the blank into the "fresh" web of material which for the most part still contains expanding agent. The folding and bending lines formed in this way have surprisingly proved to form durable hinge lines in the plastic foam material and make it possible to fold up the blank for forming a folding carton without it breaking or cracking.

REFERENCES:
patent: Re31856 (1985-03-01), Pannenbecker et al.
patent: 3387328 (1968-06-01), Winstead
patent: 3447199 (1969-06-01), Trimble
patent: 3563839 (1971-02-01), Divis
patent: 3704083 (1972-11-01), Phipps
patent: 3716320 (1973-02-01), Lyon
patent: 3789095 (1974-01-01), Winstead
patent: 3804684 (1974-04-01), Tokushige et al.
patent: 3879507 (1975-04-01), Cavanna et al.
patent: 3879508 (1975-04-01), Gilbert
patent: 3950208 (1976-04-01), Pavuk et al.
patent: 3985847 (1976-10-01), Hyun
patent: 4053549 (1977-10-01), Vandor
patent: 4141773 (1979-02-01), Keuchel
patent: 4189456 (1980-02-01), Rausing

Affiliated with

Also associated with

Rating

Process for the production of a foldable blank of plastic foam b 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 the production of a foldable blank of plastic foam b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of a foldable blank of plastic foam b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1784040