公开(公告)号：US09624401B2

公开(公告)日：2017-04-18

申请号：US14767121

申请日：2014-02-12

Applicant: BASF SE

Inventor： Stefan Adams ,  Volker Bach ,  Karl Haeberle ,  Reinhard Treiber

IPC: C08G18/08 ,  C09D175/08 ,  C08G18/66 ,  C08G18/76 ,  C09D175/04 ,  C14C11/00 ,  C08K5/17

CPC classification number: C09D175/08 ,  C08G18/0823 ,  C08G18/6692 ,  C08G18/7621 ,  C08K5/17 ,  C09D175/04 ,  C14C11/006 ,  C08G18/12 ,  C08G18/302

Abstract: A process for producing aqueous polyurethane preparations comprises the steps of: A) providing a solution in at least one solvent of at least one polymeric polyurethane bearing ionizable groups, B) using at least one neutralizing agent to partially neutralize the at least one polymeric polyurethane bearing ionizable groups, C) dispersing the at least one polymeric polyurethane bearing ionizable groups in water, D) optionally removing the at least one solvent, E) optionally diluting the mixture after solvent removal with further water, F) admixing neutralizing agent after solvent removal.