Patent ID: 7393465

Claim:
A process for preparing hydrophobic polyols comprising reacting A) a mixture comprising from 5 to 20% by weight of cardanol (3-pentadecadienylphenol), from 5 to 10% by weight of cardol (3-pentadecadienylrecorcinol) and from 1 to 5% by weight of 6-methylcardol (2-methyl 3 pentadecadienylrecorcinal), the mixture having an OH content of from 180 to 300 mg KOH/g, a viscosity at 23° C. of from 5000 to 20 000 mPas and an average OH functionality of from 28 to 4.5, with B) one or more alkylene oxides (AO) with addition of the AO monomers onto the AO-reactive groups of component A), the ratio of the amounts of A) to B) being from 1:9 to 9:1; wherein the hydrophobic polyols have an OH number of from 140 to 220 mg KOH/g and a viscosity at 23° C. of from 1000 to 4000 mPas.