Sulfonated substantially random interpolymers, blends therewith and articles made therefrom

US6479594B1 · kind B1 · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• Yunwa W. Cheung · Fryeburg, US
• Stephen F. Hahn · Midland, US
• James C. Stevens · Richmond, US
• Francis J. Timmers · Midland, US
• Gregory F. Schmidt · Midland, US
• Thoi H. Ho · Lake Jackson, US
• Robert H. Terbrueggen · South Pasadena, US

Key dates

• Filing date: Apr 20, 2000
• Grant date: Nov 12, 2002
• Expiry date: Apr 20, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Sulfonated substantially random interpolymers made from monomer components comprise from 1 to 65 mole percent of (a) at least one vinyl or vinylidene aromatic monomer, or (b) at least one hindered aliphatic or cycloaliphatic vinylidene monomer, or (c) a combination of at least one vinyl or vinylidene aromatic monomer and at least one hindered aliphatic or cycloaliphatic vinylidene monomer, and from 35 to 99 mole percent of at least one aliphatic &agr;-olefin having from 2 to 20 carbon atoms; and optionally, from 0 to 20 mole percent of a diene containing from 4 to 20 carbon atoms; wherein the sulfonated interpolymer contains at least one mer (or moiety) of a group represented by the formula —SO3−M where M is hydrogen or a group 1, 7 or 12 metal in ionic form or combination thereof. Blends of these polymers with polyamides and polyolefins are made.