FILM AND FIBER FORMING COPOLYESTERS

• Main Authors: HERBERT FITZ, WALTER SEIFRIED
• Format: Patent
• Language: English
• Published: 21.01.1969
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Polyesters, suitable for the manufacture of films and fibres, are made by reacting together (a) terephthalic acid or an alkyl ester thereof, (b) a polymethylene glycol, preferably containing 2-6 carbon atoms and (c) an ether glycol of formula HOCH2-CH2-X-CH2-CH2OH where X represents a chain of 3-16...