Starch acrylamides and the method for preparing the same

Details Starch acrylamides and the method for preparing the same Starch acrylamides and the method for preparing the same

1976-04-27

1977-11-29

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 173, 260 174ST, 260 174UC, 536 50, 536111, C08L 300

Patent

active

040605060

ABSTRACT:
The invention relates to starch acrylamides containing polymerizable pendant acrylamide groups. The hydrophilic or hydrophobic properties of the starch can be altered or modified by the acrylamide groups or the type of starch chain. The starch acrylamides can be homopolymerized or copolymerized with other ethylenically unsaturated monomers as well as other cross-linking reagents to provide water-resistant, clear, flexible coatings or shaped articles. The hydrophilic starch acrylamide hydrolyzates herein readily disperse into water at a high solids level to provide low-viscosity pastes which may be used as a vehicle to prepare flexible, water-insoluble starch-based coatings. The starch acrylamides may be prepared by etherifying a starch with N-methylol acrylamides in the presence of an acid catalyst and a polymerization inhibitor.

REFERENCES:
patent: 2668156 (1954-02-01), Caldwell et al.
patent: 2928827 (1960-03-01), Paschall
patent: 3033852 (1962-05-01), Paschall
patent: 3135738 (1964-06-01), Cushing

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