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1. WO1996031348 - A METHOD TO REDUCE DRAW RESONANCE

Publication Number WO/1996/031348
Publication Date 10.10.1996
International Application No. PCT/EP1996/001503
International Filing Date 04.04.1996
Chapter 2 Demand Filed 07.08.1996
IPC
B29C 55/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
CPC
B29C 55/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55Shaping by stretching, e.g. drawing through a die; Apparatus therefor
Applicants
  • EXXON CHEMICAL PATENTS INC. [US]/[US] (AllExceptUS)
  • CHAMBON, François [FR]/[US] (UsOnly)
  • AGASSANT, Jean-François [FR]/[FR] (UsOnly)
  • DEMAY, Yves [FR]/[FR] (UsOnly)
  • SILAGY, David [FR]/[FR] (UsOnly)
  • OHLSSON, Stefan, Bertil [SE]/[BE] (UsOnly)
Inventors
  • CHAMBON, François
  • AGASSANT, Jean-François
  • DEMAY, Yves
  • SILAGY, David
  • OHLSSON, Stefan, Bertil
Agents
  • VELDHUIZEN, Albert, Dirk, Willem
Priority Data
9507324.307.04.1995GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A METHOD TO REDUCE DRAW RESONANCE
(FR) PROCEDE POUR DIMINUER LA RESONANCE D'ETIRAGE
Abstract
(EN)
This invention relates to a method to reduce draw resonance comprising selecting a polymer having a characteristic time of less than 0.4 seconds at 260 °C and a melt index of 4 g/10 min or less and drawing the polyolefin at a draw ratio of 30 or more and at an aspect ratio of about 0.8 to about 2.5.
(FR)
L'invention concerne un procédé pour diminuer la résonance d'étirage consistant à sélectionner un polymère ayant un temps caractéristique inférieur à 0,4 secondes à 260 °C et un indice de fusion de 4 g/10 min ou moins, en tirant la polyoléfine pour qu'elle ait un rapport d'étirage de 30 ou plus et un rapport d'allongement allant de 0,8 environ à 2,5 environ.
Also published as
Latest bibliographic data on file with the International Bureau