Low modulus and autoclavable monolayer medical tubing

US6303200A · kind A · utility

Assignee

• Baxter International Inc. · US

Inventors

• Lecon Woo · Wilmington, US
• Michael T. K. Ling · Vernon Hills, US
• Patrick Balteau · Namur, BE
• Ying-Cheng Lo · North Aurora, US
• Ketan N. Shah · Gurnee, US
• Henaut J. Eric · Arquennes, BE
• Yuan-pang Samuel Ding · Vernon Hills, US
• Stanley Westphal · East Dundee, US
• Robert J. Wojnarowski · Zion, US

Key dates

• Filing date: Jan 27, 1998
• Grant date: Oct 16, 2001
• Expiry date: Jan 27, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/139
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A steam sterilizable monolayer medical tubing comprising a blend of a melt strength enhancing agent of a homopolymer or copolymer of polypropylene having free-end long chain branches of propylene units, a melt flow index of greater than 10 and in an amount of 1-10% by weight and a second component selected from the group of (i) a selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene and (ii) a selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene to which has been grafted, an alpha, beta-olenfically unsaturated monocarboxylic or dicarboxylic acid reagent.