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公开(公告)号:MX2008012988A
公开(公告)日:2008-10-17
申请号:MX2008012988
申请日:2007-04-03
Applicant: BASF SE
Inventor: FRITZ RALF , MURRAR IMBRIDT , REESE HANS-JUERGEN , CABRERA ANDRES , MAGG BIRGIT
IPC: C08G18/76 , C07C263/20 , C08G18/12
Abstract: La invención provee un proceso para preparar poliuretanos al hacer reaccionar poliisocianatos a) con compuestos que tienen por lo menos dos átomos de hidrógeno reactivos con grupos isocianato b), caracterizado porque el poliisocianato a) usado es al menos un poliisocianato ai) con una funcionalidad promedio de más de 2, un contenido de diisocianatos de no más de 2% en peso y un contenido de uretoniminas de no más de 4% en peso, basado en cada caso en el peso del poliisocianato ai).
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公开(公告)号:CA2716792C
公开(公告)日:2017-04-18
申请号:CA2716792
申请日:2009-03-13
Applicant: BASF SE
Inventor: MOHMEYER NILS , FRITZ RALF , HABICHT ANNIKA , TEPE DANIELA , PRISSOK FRANK , HARMS MICHAEL , BRUCHMANN BERND , SCHONFELDER DANIEL , FREIDANK DANIEL , EMGE ANDREAS , EISENHARDT ANDREA
Abstract: The invention relates to an open-cell polyurethane foam containing polyester and polyether structures with a density of 70 to 300 g/L, 1 to 20 cells/cm, an impact resilience of more than 30%, a strain at break of more than 200%, a tear propagation strength of more than 1.2 N/mm and a tensile strength of more than 200 kPa. The invention further relates to a method for producing open-cell polyurethane sponges and to their use as pipe cleaning sponges.
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公开(公告)号:AU2011257432B2
公开(公告)日:2015-02-26
申请号:AU2011257432
申请日:2011-05-18
Applicant: BASF SE
Inventor: MOHMEYER NILS , FRITZ RALF , BRUCHMANN BERND , CRISTADORO ANNA , LEBERFINGER MARCUS , VAN DER NET ANTJE
Abstract: The invention relates to a method for the adsorption and/or absorption of oil, according to which a polyurethane sponge with excellent mechanical properties is brought into contact with oil.
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公开(公告)号:MX2012013514A
公开(公告)日:2013-01-24
申请号:MX2012013514
申请日:2011-05-18
Applicant: BASF SE
Inventor: BRUCHMANN BERND , FRITZ RALF , LEBERFINGER MARCUS , MOHMEYER NILS , CRISTADORO ANNA , NET ANTJE VAN DER
Abstract: La presente invención se refiere a un método para adsorber yio absorber aceite, al llevar aceite en contacto con una esponja de poliuretano con excelentes propiedades mecánicas.
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公开(公告)号:AT478907T
公开(公告)日:2010-09-15
申请号:AT07727687
申请日:2007-04-03
Applicant: BASF SE
Inventor: REESE HANS-JUERGEN , MURRAR IMBRIDT , FRITZ RALF , CABRERA ANDRES , MAGG BIRGIT
IPC: C08G18/76 , C07C263/20 , C08G18/12
Abstract: The invention relates to a process for the preparation of polyurethanes by reacting polyisocyanates a) with compounds having at least two hydrogen atoms reactive with isocyanate groups b), wherein a polyisocyanate a) used is at least one polyisocyanate ai) having an average functionality of greater than 2, a content of diisocyanates of not more than 2% by weight and a content of uretonimines of not more than 4% by weight, based in each case on the weight of the polyisocyanate ai).
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公开(公告)号:DE502006001574D1
公开(公告)日:2008-10-30
申请号:DE502006001574
申请日:2006-03-22
Applicant: BASF SE
Inventor: REESE HANS-JUERGEN , POHL WOLFGANG , LUKAT GUNTHER , FRITZ RALF
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