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1.发明公开VERFAHREN ZUR DEPOLYMERISATION VON MONO- UND/ODER DIESTERN DES POLYTETRAHYDROFURANS ENTHALTENDEN GEMISCHEN 有权MONO的方法解聚和/或含聚四氢呋喃混合物的二酯
公开(公告)号：EP2079776A1
公开(公告)日：2009-07-22
申请号：EP08803272.7
申请日：2008-08-27
Applicant: BASF SE
Inventor： WABNITZ, Tobias , FERRE GIMENEZ, Ricardo , LAUBNER, Robert , STOLLE, Ralf
IPC: C08G65/20
CPC classification number: C08G65/20
Abstract: The invention relates to a method for the depolymerization of mixtures that contain mono- and/or diesters of polytetrahydrofurane in the presence of an acid catalyst and of a C1 to C3 alcohol at temperatures of 80 to 200 °C and a pressure of 0.05 to 0.5 MPa, the molar ratio of the C1 to C3 alcohol to the carboxyl groups contained in the mixture being greater than 1.
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2.发明授权VERFAHREN ZUR DEPOLYMERISATION VON MONO- UND/ODER DIESTERN DES POLYTETRAHYDROFURANS ENTHALTENDEN GEMISCHEN 有权MONO的方法解聚和/或含聚四氢呋喃混合物的二酯
公开(公告)号：EP2079776B1
公开(公告)日：2011-01-12
申请号：EP08803272.7
申请日：2008-08-27
Applicant: BASF SE
Inventor： WABNITZ, Tobias , FERRE GIMENEZ, Ricardo , LAUBNER, Robert , STOLLE, Ralf
IPC: C08G65/20
CPC classification number: C08G65/20
Abstract: The invention relates to a method for the depolymerization of mixtures that contain mono- and/or diesters of polytetrahydrofurane in the presence of an acid catalyst and of a C1 to C3 alcohol at temperatures of 80 to 200 °C and a pressure of 0.05 to 0.5 MPa, the molar ratio of the C1 to C3 alcohol to the carboxyl groups contained in the mixture being greater than 1.
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