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Machine translation
1. (WO2000029470) INCREASING THE MELT VISCOSITIES OF A POLYESTER RESIN
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/029470    International Application No.:    PCT/CH1999/000536
Publication Date: 25.05.2000 International Filing Date: 12.11.1999
Chapter 2 Demand Filed:    17.04.2000    
IPC:
C08K 5/1515 (2006.01)
Applicants: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE [CH/CH]; DPR - Ecublens, CH-1015 Lausanne (CH) (For All Designated States Except US).
MANSON, Jan-Anders, E. [SE/CH]; (CH) (For US Only).
LETERRIER, Yves [FR/CH]; (CH) (For US Only).
JAPON, Sonia [CH/CH]; (CH) (For US Only)
Inventors: MANSON, Jan-Anders, E.; (CH).
LETERRIER, Yves; (CH).
JAPON, Sonia; (CH)
Agent: GANGUILLET, Cyril; Abrema Agence Brevets et Marques Ganguillet & Humphrey, Avenue du Théâtre 16, P.O. Box 2065, CH-1002 Lausanne (CH)
Priority Data:
98811135.7 13.11.1998 EP
Title (EN) INCREASING THE MELT VISCOSITIES OF A POLYESTER RESIN
(FR) AUGMENTATION DES VISCOSITES DE FUSION D'UNE RESINE POLYESTER
Abstract: front page image
(EN)The invention relates to a process for increasing the melt viscosities of polyester resins. This process comprises a step of heating the polyester resin in the temperature range comprised between the melting temperature of the polyester resin and the degradation temperature of the polyester resin with the addition of at least one modifier compound which has at least three glycidyl side chains. The improved polyester resins, having such improved properties, are used for the production of polyester foamed materials.
(FR)L'invention concerne un procédé pour augmenter les viscosités de fusion de résines polyester. Ce procédé consiste à chauffer la résine polyester dans la plage de températures comprise entre la température de fusion de la résine polyester et la température de dégradation de la résine polyester, tout en ajoutant au moins un composé modificateur comportant au moins trois chaînes latérales glycidyle. Les résines polyester améliorées, présentant de telles propriétés améliorées, s'utilisent pour la production de matériaux en mousse de polyester.
Designated States: CA, JP, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)