Polymerizable compounds and use thereof

US6534597B2 · kind B2 · utility

Assignee

• Rhodia, Inc. · US

Inventors

• Herve Adam · Princeton, US
• Hui S. Yang · Plainsboro, US
• Jonathan D. Kiplinger · Bordentown, US
• Eugene J. Anderson · Marlton, US
• Ning Chen · Thousand Oaks, US
• Robert Lee Reierson · Cranbury, US

Key dates

• Filing date: Mar 29, 2001
• Grant date: Mar 18, 2003
• Expiry date: Mar 29, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F230/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymerizable ester surfactant, or a salt thereof, having the formula:R1—C(O)—R2—X wherein:R1 is an optionally substituted vinyl radical,R2 is a divalent polyoxyalkylene radical having at least two oxypropylene units, optional oxyethylene units in a block or random pattern, and a molar ratio oxypropylene units to oxyethylene units of at least about 2:1, preferably at least about 3:1, typically at least about 4:1 and more typically at least about 5:1, andX is a phosphate group, wherein in the ester the mono-phosphate ester to di-phosphate ester weight ratio is greater than 80:20. These polymerizable surfactant compounds are useful as the sole surfactant in producing polymer latices by emulsion polymerization by polymerization of them with another polymerizable monomer.