Process for producing shaped articles of crystalline polyolefins having a roughened surface
Abstract
Abstract SHAPED ARTICLES SUCH AS FILM, SHEET, TAPE OR FILAMENTS, OF CRYSTALINES POLYOLEFIN RESINS SUCH AS POLYPROPYLENE OR ETHYLENE, HAVING A UNIFORMLY AND REMARKABLY ROUGHENED SURFACE, AND USEFUL FOR THE PRODUCTION OF SYNTHETIC, PAPER, SYNTHETIC, PULP, STRING, WOVEN FABRIC, KNITTED PRODUCTS, ETC., CAN BE PREPARED BY COOLING AND SOLIDIFYING A CRYSTALLINE POLYOLEFIN RESIN EXTRUDED FROM A DIE WHICH IS IN A MOLTEN BUT PREFORMED STATE, BY CONTACTING WITH A SPECIFIED SOLVENT HAVING A BOILING POINT OF 30*-400*C. AND MAINTAINED AT A TEMPERATURE WHICH IS IN THE RANGE OF 0*-100:C. AND LOWER THAN SAID BOILING POINT AND DOES NOT DISSOLVE SAID CRYSTALINE POLYOLEFIN RESIN, WHICH SOLVENT IS USED ALONE FOR COOLING OR IN THE FORM FLOATING ANOTHER COOLING LIQUID.
Inventors
- 👤 H Haruta
- 👤 S Mukai
- 👤 T Ishibashi
Bibliographic Details
Claims Analysis
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