Moldable polyester compositions, processes of manufacture, and articles thereof

US8168707B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Parminder Agarwal · Evansville, US
• Donald Howard Ellington · Evansville, US
• Robert R. Gallucci · Greenwood, US
• Josephus Gerardus M. van Gisbergen · Bergen op Zoom, NL
• Vishvajit Chandrakant Juikar · Savanuru, IN
• Ihab N. Odeh · Evansville, US
• Sathish Kumar Ranganathan · Avon, US
• Kenneth F. Miller · Mount Vernon, US
• Veeraraghavan Srinivasan · Bengaluru, IN

Key dates

• Filing date: Aug 7, 2008
• Grant date: May 1, 2012
• Expiry date: Feb 6, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1386
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic composition comprises, based on the total weight of the composition: 51-90 wt % of a polyester, 10-49 wt % of an ABS impact modifier; 0 to 20 wt % of a multifunctional epoxy compound; 0-40 wt % of a filler; 0-2 wt % of a fibrillated fluoropolymer; and from more than 0 to 5 wt % of a stabilizer composition. An article blow molded or injection molded from the composition has a multi-axial impact total energy from 40-100 Joules at −30° C.; a ductility of more than 90%, a permeability of more than 0 to less than or equal to 1.5 g/m2-day, measured after exposure Fuel C vapor for 20 weeks at 40° C.; an MVR of 1-20 cc/10 min; a flexural modulus of greater than 1300 MPa; and retains at least 75% of its initial tensile elongation at break after exposure to Fuel E85 for 28 days at 70° C.