COMPOSITIONS POLYOLEFINIQUES STERILISABLES A LA CHALEUR ET ARTICLES FABRIQUES A PARTIR DE CES COMPOSITIONS

• Main Author: KIYOSHI HATTORI ET JOHN H. MYERS
• Format: Patent
• Language: French
• Published: 22.06.1984
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

L'INVENTION A TRAIT A LA CHIMIE DES POLYMERES.ELLE CONCERNE DES FILMS STERILISABLES A LA CHALEUR FORMES D'UN MELANGE POLYMERIQUE D'ENVIRON 10 A ENVIRON 60 EN POIDS D'UN COPOLYMERE PROPYLENE-ETHYLENE STATISTIQUE RENFERMANT ENVIRON 1 A ENVIRON 6 EN POIDS DE MOTIFS DERIVES D'ETHYLENE ET D'ENVIRON 40 A ENVIRON 90 EN POIDS DE POLYETHYLENE LINEAIRE BASSE DENSITE.LES FILMS SONT PARTICULIEREMENT UTILES A LA REALISATION DE SACS A SOLUTION PARENTERALE ET DE LEURS ENVELOPPES POUVANT SE DEFORMER PAR AFFAISSEMENT. Heat-sterilizable films are made from a polymer blend of 10 to 60 wt % of a random propylene-ethylene copolymer containing from 1 to 6 wt % ethylene-derived units and 40 to 90 wt % of a linear low density polyethylene. The films are especially useful in the manufacture of collapsible parenteral solution bags and overwraps. A parenteral solution bag assembly comprises an inner sealed plastic film bag containing a parenteral solution, an outer sealed bag enclosing the inner bag and in the space between the outer and inner bags a quantity of a substance sufficient to control removal of a component from or to control the addition of a component to the parental solution through the inner bag film wall.