Abstract:
A PROCESS FOR PREPARING A POLYMERIZATE MAINLY COMPOSED OF DIMER HAVING CYCLOHEXANE STRUCTURE BY THE THERMAL POLYMERIZATION OF A CONJUGATED UNSATURATED FATTY ACID OR ITS ESTER, IN WHICH AN ARYL SULFOHALIDE IS ADDED TO THE REACTION SYSTEM AS CATALYST IN ORDER TO INCREASE THE REACTION RATE AND REDUCE THE CONTENT OF TRIMER AND HIGHER POLYMERS IN THE PRODUCT.
Abstract:
NEW POLYAMIDES ARE PREPARED BY REACTING A DIAMINE, A FATTY ACID OF 1-24 CARBON ATOMS AND PHENOLIC, NUCLEUSCROSS-LINKED DIMERIC ACID ESTER OR A DIMERIC ACID WHICH IS A HYDROLYSIS PRODUCT OF SAID ESTER (HEREINAFTER REFERRED TO AS "NUCLEUS-CROSS-LINKED DIMERS") OBTAINED BY ADDITION POLYMERIZATION OF 2 MOLES OF AN UNSATURATED FATTY ACID/ LOWER ALCOHOL ESTER AND 1 MOLE OF PHENOL OR A PHENOL DERIVATIVE (HEREINAFTER REFERRED TO AS "PHENOLS"), WHICH NUCLEUS-CROSS-LINKED DIMER IS COMPOSED OF TWO MOLECULES OF THE UNSATURATED FATTY ACID ESTER LINKED TOGETHER THROUGH AN AROMATIC NUCLEUS OF ONE MOLECULE OF THE PHENOL.