| abstract |
PURPOSE: To increase shelf life by prepg. an aq. emulsion contg. cyclocarbonate residue having 2-oxo-1,3-dioxolan-4-yl group as side chain group or terminal group. n CONSTITUTION: The polymer having ≥2 of 2-oxo-1,3-dioxolan-4-yl group of formula I (where, R 1 , R 2 and R 3 are, same or different, hydrogen atom, substd. or unsubstd. methyl group) per one polymer molecule, on an average, as side chain group or terminal group, and contg. or not contg. solvent, is emulsified in water to produce the aq. emulsion. In this case, the solid content of the emulsified polymer contg. cyclocarbonate residue having 2-oxo-1,3-dioxolan-4-yl group as side chain group or terminal group is 5-80%, preferably 25-60%. n COPYRIGHT: (C)1990,JPO&Japio |