Copolyester tape

US11673996B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Bander Al-Farhood · Riyadh, SA
• Zahir Bashir · Riyadh, SA
• Satishkumar Mahanth · Savanuru, IN
• Roshan Kumar Jha · Savanuru, IN
• Kummetha Raghunatha Reddy · Geleen, NL

Key dates

• Filing date: Sep 7, 2018
• Grant date: Jun 13, 2023
• Expiry date: Nov 10, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2367/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Provided is a tape including a composition having a copolyester including polymeric units derived from ethylene glycol and terephthalic acid or a diester thereof and >0.50 and <5.00 wt % of polymeric units with regard to the total weight of the polyester derived from an oligomeric dihydroxy compound having a number average molecular weight of >500 g/mol and <5000 g/mol. Such tape has an improved tensile-impact strength and a reduced proneness to splitting during weaving.