Patent ID: 7205350

Claim:
A process for preparing an aqueous emulsion comprising a) a compound of the formula: wherein one of R 1 and R 2 independently of one another represents hydrogen or C 1 –C 4 alkyl and the other one represents C 3 –C 4 alkyl; x represents zero (direct bond) or a numeral from one to three; and R 3 represents C 8 –C 22 alkyl or a group of the partial formulae wherein one of R 1 ′ and R 2 ′ independently of one another represents hydrogen or C 1 –C 4 alkyl and the other one represents C 3 –C 4 alkyl; x represents zero (direct bond) or a numeral from one to three; and y represents a numeral from two to six; b) polyvinyl alcohol having a degree of polymerisation of about 500–2500 and a degree of hydrolysis of about 70.0–99.9%; and, optionally, further additives; and c) water, which process comprises dispersing a molten phase of component (a) in an aqueous phase, where polyvinyl alcohol of component (b) and optionally further additives are present.