BR7908945A - PROCESS AND APPARATUS FOR THE BIAXIAL STRETCHING OF A FLAT FILM SHEET OF PLASTIC MATERIAL IN A STRETCHING APPLIANCE - Google Patents

PROCESS AND APPARATUS FOR THE BIAXIAL STRETCHING OF A FLAT FILM SHEET OF PLASTIC MATERIAL IN A STRETCHING APPLIANCE

Info

Publication number
BR7908945A
BR7908945A BR7908945A BR7908945A BR7908945A BR 7908945 A BR7908945 A BR 7908945A BR 7908945 A BR7908945 A BR 7908945A BR 7908945 A BR7908945 A BR 7908945A BR 7908945 A BR7908945 A BR 7908945A
Authority
BR
Brazil
Prior art keywords
stretching
plastic material
film sheet
flat film
appliance
Prior art date
Application number
BR7908945A
Other languages
Portuguese (pt)
Inventor
H Pohl
F Aufsess
W Sasse
G Huxhorn
Original Assignee
Unilever Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2853398A external-priority patent/DE2853398C3/en
Application filed by Unilever Nv filed Critical Unilever Nv
Publication of BR7908945A publication Critical patent/BR7908945A/en

Links

BR7908945A 1978-12-11 1979-12-11 PROCESS AND APPARATUS FOR THE BIAXIAL STRETCHING OF A FLAT FILM SHEET OF PLASTIC MATERIAL IN A STRETCHING APPLIANCE BR7908945A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2853398A DE2853398C3 (en) 1978-12-11 1978-12-11 Method and device for simultaneous biaxial stretching of a plastic film web
PCT/EP1979/000098 WO1980001149A1 (en) 1978-12-11 1979-12-11 Method for simultaneous biaxial drawing of a synthetic sheet material and machine therefor

Publications (1)

Publication Number Publication Date
BR7908945A true BR7908945A (en) 1981-06-30

Family

ID=25776783

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7908945A BR7908945A (en) 1978-12-11 1979-12-11 PROCESS AND APPARATUS FOR THE BIAXIAL STRETCHING OF A FLAT FILM SHEET OF PLASTIC MATERIAL IN A STRETCHING APPLIANCE

Country Status (1)

Country Link
BR (1) BR7908945A (en)

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19941211

B15K Others concerning applications: alteration of classification

Ipc: B29D 7/00 (2006.01)