WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2000025330) BIAXIALLY ORIENTED SHEETING FOR ELECTRICAL INSULATION WITH IMPROVED SHRINKAGE AT ELEVATED TEMPERATURES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/025330    International Application No.:    PCT/EP1999/008090
Publication Date: 04.05.2000 International Filing Date: 26.10.1999
Chapter 2 Demand Filed:    12.05.2000    
IPC:
C08J 5/18 (2006.01), H01G 4/18 (2006.01)
Applicants: HOECHST TRESPAPHAN GMBH [DE/DE]; Bergstrasse D-66539 Neunkirchen (DE) (For All Designated States Except US).
KOCHEM, Karl-Heinz [DE/DE]; (DE) (For US Only).
MÜLLER-NAGEL, Kerstin [DE/DE]; (DE) (For US Only)
Inventors: KOCHEM, Karl-Heinz; (DE).
MÜLLER-NAGEL, Kerstin; (DE)
Agent: LUDERSCHMIDT, Wolfgang; John-F.-Kennedy-Strasse 4 D-65189 Wiesbaden (DE)
Priority Data:
198 49 678.8 28.10.1998 DE
Title (DE) BIAXIAL ORIENTIERTE ELEKTROISOLIERFOLIE MIT VERBESSERTEM SCHRUMPF BEI ERHÖHTEN TEMPERATUREN
(EN) BIAXIALLY ORIENTED SHEETING FOR ELECTRICAL INSULATION WITH IMPROVED SHRINKAGE AT ELEVATED TEMPERATURES
(FR) FILM ISOLANT ELECTRIQUEMENT BIORIENTE PRESENTANT UN MEILLEUR RETRAIT POUR DES TEMPERATURES ACCRUES
Abstract: front page image
(DE)Es wird eine biaxial orientierte Polypropylenfolie beschrieben. Der n-heptanunlösliche Anteil der Folie weist einen Kettenisotaxieindex, gemessen mittels 13C-NMR-Spectroskopie, von mindestens 95 % auf. Insbesondere sollte die Folie bei erhöhten Temperaturen einen möglichst geringen Schrumpf (Querschrumpf und Längsschrumpf) aufweisen. Ausserdem wird ein Verfahren zur Herstellung der Polypropylenfolie sowie deren Verwendung beschrieben.
(EN)The invention relates to a biaxially oriented polypropylene film. The n-heptane insoluble portion of the film has a chain isotactic index of at least 95 %, as measured by 13 C NMR spectroscopy. The inventive film has as small shrinkage (transversal and longitudinal shrinkage) as possible at elevated temperatures. The invention also relates to a method for producing the polypropylene film and its use.
(FR)L'invention concerne un film en polypropylène biorienté. La fraction insoluble dans le n-heptane du film présente un indice d'isotaxie en chaîne, mesuré par spectroscopie RMN au C 13, de 95 % au moins. Le film selon l'invention présente en particulier un retrait transversal et longitudinal aussi faible que possible pour des températures accrues. L'invention concerne également un procédé pour la production de ce film et son utilisation.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: German (DE)
Filing Language: German (DE)