Propene terpolymers with a low extractable portion

US6583253B1 · kind B1 · utility

Assignee

• Basell Polypropylen GmbH · DE

Inventors

• David Fischer · Breunigweiler, DE
• Peter J. Jones · Belmont, US
• Franz Langhauser · Bad Dürkheim, DE
• Wolfgang Bidell · Mutterstadt, DE
• Roland Hingmann · Ladenburg, DE
• Gunther Schweier · Osthofen, DE
• Bernd Lothar Marczinke · Frankfurt, DE
• Meinolf Kersting · Neustadt, DE
• Ulrich Moll · Schnaittach, DE

Key dates

• Filing date: Dec 5, 2000
• Grant date: Jun 24, 2003
• Expiry date: Dec 5, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Propene terpolymers consist of from 80 to 99.5 mol % of structural units derived from propene, from 0.1 to 15 mol % of structural units derived from ethene or a C4-C6-1-olefin (I) and from 0.1 to 15 mol % of structural units derived from a further C4-C12-1-olefin (II) which is different from the C4-C6-1-olefin (I), which propene terpolymers have a proportion of regioregular ′1-2′-inserted propene units corresponding to the formula (1) of more than 0.99, have a melting point (TM), determined from the DSC peak maximum, of less than 135° C. and a weight average molecular weight (MW) of more than 80,000 g/mol and have a xylene-soluble proportion (XS) in % by weight of the propene terpolymer which obeys the following inequality (2)XS≦1411.21 exp(−0.0591 TM[° C.])−0.05  (2).