公开(公告)号：US20190270841A1

公开(公告)日：2019-09-05

申请号：US16347011

申请日：2017-11-14

Applicant: BASF SE

Inventor： Johannes POPPENBERG ,  Waldemar MEIER ,  Christina TEPPER ,  Markus SUSOFF ,  Dejan PETROVIC ,  Steffen RICHTER

IPC: C08G18/76 ,  C08G18/12 ,  C08G18/42 ,  C08G18/48 ,  C08J9/12 ,  B29C44/02

Abstract: The present invention relates to a method of preparing a polyurethane elastomer. The method includes a step of reacting at least one isocyanate composition and one polyol composition containing a poly-ε-caprolactone polyol obtained by reacting ε caprolactone and a diol having a number average molecular weight of from 80 to 1500 g/mol to obtain an isocyanate-functional prepolymer; and a step of reacting the prepolymer with at least one chain extender. The polyol composition contains α-hydro-ω-hydroxypoly(oxytetramethylene) polyols in an amount ranging from 0 to 1 wt % based on the entire polyol composition. The present invention further relates to a polyurethane elastomer prepared by such a method and also to the use of the polyurethane elastomer in the manufacture of a shaped article, especially a damping element, a shock absorber, a stop buffer, or a part of a shoe, such as a shoe sole, in particular, an insert sole or a midsole.

公开(公告)号：US20190276582A1

公开(公告)日：2019-09-12

申请号：US16346715

申请日：2017-11-14

Applicant: BASF SE

Inventor： Johannes POPPENBERG ,  Waldemar MEIER ,  Christina TEPPER ,  Markus SUSOFF ,  Dejan PETROVIC ,  Steffen RICHTER

IPC: C08G18/12 ,  C08G18/76 ,  C08G18/42 ,  C08G18/48 ,  C08G18/40 ,  C08G18/32 ,  C08J9/12

Abstract: The present invention relates to a method of preparing a polyurethane elastomer, said method comprising the step of reacting at least one isocyanate composition (ZI) and one polyol composition (ZP) comprising a poly-ε-caprolactone polyol and an α-hydro-ω-hydroxy-poly(oxytetramethylene) polyol to obtain an isocyanate-functional prepolymer and the step of reacting the prepolymer obtained as per step (i) with at least one chain extender (KV). The present invention further relates to a polyurethane elastomer obtained or obtainable according to a method of the invention and also to the method of using a polyurethane elastomer according to the invention or a polyurethane elastomer obtained or obtainable according to a method of the invention in the manufacture of a shaped article, especially a damping element, a shock absorber or a stop buffer or part of a shoe or of a shoe sole, for example part of an insert sole or of a midsole.

公开(公告)号：US20200048396A1

公开(公告)日：2020-02-13

申请号：US16484658

申请日：2018-03-20

Applicant: BASF SE

Inventor： Sebastian RICHTER ,  Frank SCHAEFER ,  Johannes POPPENBERG ,  Hendrik WAGNER

IPC: C08G18/10 ,  C08G18/42 ,  C08G18/76 ,  C08G18/75 ,  C08G18/73 ,  C08G18/32

Abstract: The present invention relates to a process for producing a polyurethane, comprising the reaction of a polyol composition (PZ) comprising a polyol (P1) with a polyisocyanate composition (PIZ-1) comprising a polyisocyanate (I1) to obtain a hydroxyl-terminated prepolymer (PP1) and the reaction of the prepolymer (PP1) obtained with a polyisocyanate composition (PIZ-2) comprising a polyisocyanate (I2) and at least one chain extender (K1) to obtain a polyurethane (PU1), wherein the molar ratio of the OH groups in the components of the polyol composition (PZ) to the isocyanate groups in the components of the polyisocyanate composition (PIZ-1) in the reaction in step (i) is in the range from 1.3:1 to 10:1. The present invention further relates to polyurethanes obtainable or obtained by such a process, and to the use of the polyurethanes for production of shaped bodies, adhesives, coatings, hoses, films, nonwoven articles or fibers.