公开(公告)号：US10435499B2

公开(公告)日：2019-10-08

申请号：US15548358

申请日：2016-02-01

申请人： BASF SE

发明人： Rajesh Kumar ,  Hai Sheng Wu ,  Nikolay Lebedinski ,  Sunitha Grandhee

IPC分类号： C08G18/08 ,  C08G18/09 ,  C08G18/16 ,  C08G18/28 ,  C08G18/32 ,  C08G18/34 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/62 ,  C08G18/66 ,  C08G18/72 ,  C08G18/75 ,  C08G18/76 ,  C08G18/79 ,  C09D7/20 ,  C09D175/02 ,  C09D175/04

摘要： This disclosure provides a solvent-borne system for forming an n-acyl urea coating on a substrate. In one embodiment, the solvent-borne system comprises a polycarbodiimide-polyurethane hybrid. The solvent-borne system also comprises an acid functional polymer and an organic solvent, and comprises less than or equal to 10 weight percent of water based on a total weight of said solvent-borne system. The solvent-borne system also comprises less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the solvent-borne system.

公开(公告)号：US10815383B2

公开(公告)日：2020-10-27

申请号：US15748363

申请日：2016-07-29

申请人： BASF SE

发明人： Rajesh Kumar ,  Vincent Goldman ,  Sunitha Grandhee

IPC分类号： C09D5/08 ,  C09D175/04 ,  C09D7/61 ,  C08G18/28 ,  C09D7/00 ,  C08G18/34 ,  C08G18/79 ,  C08G18/76 ,  C08G18/65

摘要： This disclosure provides a pigmented primer composition for forming an n-acyl urea coating on a substrate. The pigmented primer composition includes a polycarbodiimide-polyurethane hybrid. The pigmented primer composition also includes an acid functional polymer and an organic solvent, and includes less than or equal to 10 weight percent of water based on a total weight of the pigmented primer composition. The pigmented primer composition also includes a pigment, an inorganic filler, and less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the pigmented primer composition. The n-acyl urea coating exhibits corrosion resistance of 2 to 10 as determined using ASTM B117 and ASTM D-1654-08 on a substrate that is unpolished cold rolled steel, aluminum, or galvanized steel.

公开(公告)号：US20200239623A1

公开(公告)日：2020-07-30

申请号：US16637005

申请日：2018-08-31

申请人： THE UNIVERSITY OF MASSACHUSETTS ,  BASF SE

发明人： Madhu Sheri ,  Umesh Choudhary ,  Todd Emrick ,  Sunitha Grandhee

IPC分类号： C08G18/80 ,  C08G18/28 ,  C08G18/73 ,  C08G18/76 ,  C09D175/04

摘要： A method for deblocking a blocked isocyanate is described herein. The method includes contacting a blocked isocyanate and a halide ion source under conditions effective to provide a deblocked isocyanate. A method of making a polyurethane is also disclosed. The method of making a polyurethane includes combining a blocked isocyanate, a polyol, and a halide ion source in the presence of solvent and under conditions effective to provide the polyurethane.

公开(公告)号：US11254784B2

公开(公告)日：2022-02-22

申请号：US16637005

申请日：2018-08-31

申请人： THE UNIVERSITY OF MASSACHUSETTS ,  BASF SE

发明人： Madhu Sheri ,  Umesh Choudhary ,  Todd Emrick ,  Sunitha Grandhee

IPC分类号： C08G18/28 ,  C08G18/80 ,  C08G18/73 ,  C08G18/76 ,  C09D175/04

摘要： A method for deblocking a blocked isocyanate is described herein. The method includes contacting a blocked isocyanate and a halide ion source under conditions effective to provide a deblocked isocyanate. A method of making a polyurethane is also disclosed. The method of making a polyurethane includes combining a blocked isocyanate, a polyol, and a halide ion source in the presence of solvent and under conditions effective to provide the polyurethane.