Henkel Corporation

Cognis Corporation

Setsuo Sato

Ramiro Carielo Bueno

Wanderson Bueno De Almeida

Joerg Schwarzer

C William Blewett

Tracy K Hunt

Roger A Lovald

Michael Sublett

Hercules Peloggia

Carlos Alberto De Moura

Process for the preparation of dimeric fatty acid C1-4 alkyl esters

Dimer and trimer acid esters from epoxidized compounds and methods for their preparation

Polyamides and process for their preparation comprising either

Polyamides from dimer and trimer acid esters and methods for their

Process for the preparation of polyamides comprising the steps of A) reacting a soybean oil condensate obtained from the deodorization of refined soybean oil and which contains less than 30% by weight of free and esterified oleic acid based on the total weight of free and esterified fatty acids in said condensate, with a C.sub.1-4 alkanol in the presence of a zinc oxide catalyst to convert free fatty acids and fatty acid glyceride esters to fatty acid C.sub.1-4 alkyl esters; B) removing excess C.sub.1-4 alkanol, volatile reaction by-products, water, and the zinc oxide catalyst from the resulting reaction mixture; C) heating the reaction mixture from step B) under vacuum to obtain a distillate of fatty acid C.sub.1-4 alkyl esters; D) separating the distillate from step C) into a fraction containing mostly C.sub.16-18 saturated fatty acid C.sub.1-4 alkyl esters and a second fraction containing mostly C.sub.16-18 unsaturated fatty acid C.sub.1-4 alkyl esters wherein the oleic acid C.sub.1-4 alkyl ester content is less than about 35% by weight thereof; E) dimerizing said second fraction in the presence of montmorillonite clay; and F) reacting the dimerized second fraction with a polyamine.

Process for the preparation of polyamides

Growing community of inventors

Jacarei-SP, Brazil

Setsuo Sato