Cellulose copolymers that modify fibers and surfaces and methods of making same

US6596809B2 · kind B2 · utility

Assignee

• Symyx Technologies, Inc. · US

Inventors

• Dominique Charmot · Campbell, US
• Manikandan Jayaraman · San Jose, US
• Han-Ting Chang · Livermore, US
• Paul Mansky · San Francisco, US
• Wilfried Blokzijl · Bebington, GB

Key dates

• Filing date: Jul 20, 2001
• Grant date: Jul 22, 2003
• Expiry date: Jul 20, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6484
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Cellulosic polymers, copolymers and grafts, are disclosed that adhere to fibers and surfaces during an aqueous treatment process. The cellulosic polymers having grafts and/or co-blocks are prepared using living-type free radical polymerization techniques, which provides control over the degree of substitution and graft/co-block composition and structure. These cellulosic polymers allow for the modification of fibers and surfaces to provide a desired effect.