The present invention relates to a macromolecule for delivering protein, polypeptide or peptide drugs and to a production method for the same, as well as to a slow release composition for protein, polypeptide or peptide drugs comprising the same, and more specifically relates to a polylactic acid derivative compound of Chemical formula 1 of which the numerical average molecular weight is no more than 7000 daltons and to a production method for the same, as well as to a slow release composition for protein, polypeptide or peptide drugs using the same and to a production method for the same.

The invention relates to a process to prepare complex oligomeric structures obtained from vegetable oils. The process allows to use a mixture of triglycerides containing dicarboxylic acids produced by the oxidative cleavage of vegetable oils as a starting material, these oils being subjected to a step of heating (condensation) followed by a step of esterification with alcohols at temperatures up to 250 C.

The invention relates to a process to prepare complex oligomeric structures obtained from vegetable oils. The process allows to use a mixture of triglycerides containing dicarboxylic acids produced by the oxidative cleavage of vegetable oils as a starting material, these oils being subjected to a step of heating (condensation) followed by a step of esterification with alcohols at temperatures up to 250 C.

The present invention relates to a process for producing an alkyl acrylate dimer. Furthermore, the present invention relates to a process for producing a hydrogenated alkyl acrylate dimer obtained by the dimerization process according to the present invention. Moreover, the present invention relates to a process of producing a hydrolyzed alkyl acrylate dimer obtained by the dimerization process according to the present invention.

The present invention relates to a process for producing an alkyl acrylate dimer. Furthermore, the present invention relates to a process for producing a hydrogenated alkyl acrylate dimer obtained by the dimerization process according to the present invention. Moreover, the present invention relates to a process of producing a hydrolyzed alkyl acrylate dimer obtained by the dimerization process according to the present invention.