ACID-MODIFIED PROPYLENE POLYMER, PROCESS FOR PRODUCING THE SAME, COMPOSITE COMPOSITION COMPRISING THE POLYMER AND OTHER POLYMER, AND MULTILAYERED SHEET COMPRISING THE POLYMER

• Main Authors: TSUNORI, RYOICHI, KANZAWA, MITSUGU, SUGITA, YASUHISA, ONISHI, RIKUO, TATSUMI, TOMIO
• Format: Patent
• Language: English; French; Japanese
• Published: 01.05.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

An acid−modified propylene polymer satisfying the following (1) to (3). The intrinsic viscosity [ ] (as measured in decalin at 135°C): 1 dL g or higher. The ratio of acid content to the number of polymer chains (ß value): from 0.5 to 3.0. The content of components having molecular weight Mw of 10,000 or lower (LP content): 0.5 wt.% or lower. The content of unreacted acid (compound containing ethylenic double bond and polar group in the same molecule): 2 wt.% or lower. The polymer has a high molecular weight and retains properties of the raw propylene polymer. It is hence usable as a film or molding. An acid-modified propylene polymer satisfying the following 1 to 3. The intrinsic viscosity [eta] as measured in decalin at 135°C: 1 dL/g or higher. The ratio of acid content to the number of polymer chains ß value: from 0.5 to 3.0. The content of components having molecular weight Mw of 10,000 or lower LP content: 0.5 wt.% or lower. The content of unreacted acid compound containing ethylenic double bond and polar group in the same molecule: 2 wt.% or lower. The polymer has a high molecular weight and retains properties of the raw propylene polymer. It is hence usable as a film or molding. L'invention concerne un polymère de propylène modifié par acide satisfaisant les conditions suivantes (1) à (3). (1) La viscosité intrinsèque [ eta ] (mesurée dans la décaline à 135 DEG C): 1 dL/g ou supérieur. (2) Le rapport entre la teneur en acide et le nombre de chaînes polymères (valeur beta ): de 0,5 à 3,0. (3) La teneur en constituant ayant une masse moléculaire Mw de 10000 ou moins (contenu LP): 0,5 % en poids ou moins. (4) La teneur en acide non réagi (composé contenant une double liaison éthylénique et un groupe polaire dans la même molécule): 2 % en poids au moins. Le polymère présente une masse moléculaire élevée et conserve les propriétés du polymère propylénique brut. Il est par conséquent utilisable en tant que film ou moulage.