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公开(公告)号:AT527301T
公开(公告)日:2011-10-15
申请号:AT04713883
申请日:2004-02-24
Applicant: BASF SE
Inventor: KREITSCHMANN MIRKO , ROTERMUND UDO , FRITSCH PETER
Abstract: A method for the production of polyesterols with reduced reactivity (I) by polycondensation of dicarboxylic acids or their derivatives with H-functional substances in presence of tin catalysts, involves bringing (I) into contact with oxygen after the end of the esterification reaction. An independent claim is also included for polyesterols obtained by this method.
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公开(公告)号:ES2372753T3
公开(公告)日:2012-01-26
申请号:ES04713883
申请日:2004-02-24
Applicant: BASF SE
Inventor: KREITSCHMANN MIRKO , ROTERMUND UDO , FRITSCH PETER
Abstract: Procedimiento para la obtención de poliesteroles de reactividad reducida mediante policondensación de ácidos dicarboxílicos/derivados de ácidos dicarboxílicos y substancias H-funcionales bajo empleo de catalizadores de estaño, caracterizado porque los poliesteroles se ponen en contacto con oxígeno una vez concluida la reacción de esterificado.
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