Method of manufacturing oriented product of synthetic crystalline polymer
Abstract
Abstract A METHOD OF MANUFACTURING ORIENTED PRODUCT OF SYNTHETIC CRYSTALLINE POLYMER WHICH COMPRISES THE STEPS OF DRAWING UNIAXIALLY ORIENTED MATERIALS OF SYNETHETIC CRYSTALLINE POLYMER TO AN EXTENT OF AT LEAST TWICE THE ORIGINAL SIZE IN THE DIRECTION OF SAID ORIENTATION AXIS AT A TEMPERATURE OF MORE THAN 30* C. BELOW THE MELTING POINT OF SAID UNIAXIALLY ORIENTED MATERIALS; APPLYING TENSILE STRESS TO THE DRAWN MATERIAL IN THE DIRECTION OF DRAW AXIS IN A SOLVENT HEATED TO A TEMPERATURE RANGING BETWEEN A LEVEL 2* C. HIGHER AND A LEVEL 10* C. LOWER THAN THE TEMPERATURE AT WHICH SAID ORIENTED MATERIAL WOULD BE DISSOLVED WITHOUT TENSION; AND UNDER THIS CONDITION EXTRACTING THE SOLUBLE FRACTIONS OF SAID DRAWN MATERIAL.
Inventors
- 👤 H Shii
- 👤 E Oda
Bibliographic Details
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