公开(公告)号：US20150056397A1

公开(公告)日：2015-02-26

申请号：US14532034

申请日：2014-11-04

Applicant: PRC-DeSoto International, Inc.

Inventor： Juexiao Cai ,  Stephen J. Hobbs ,  Marfi Ito ,  Scott Moravek ,  Renhe Lin

IPC: C08G18/52 ,  C08G18/38 ,  C08G18/77

CPC classification number: C08G18/52 ,  C08G18/10 ,  C08G18/324 ,  C08G18/3868 ,  C08G18/755 ,  C08G18/7621 ,  C08G18/775 ,  C08G2190/00 ,  C09J175/02 ,  Y10T428/20 ,  C08G18/6685

Abstract: Sulfur-containing polyurea compositions comprising a polyisocyanate and a polyamine are disclosed. The polyisocyanate comprises the reaction product of reactants comprising a diisocyanate having isocyanate groups with different reactivities toward thiol groups, and a thiol-terminated sulfur-containing polymer such as a thiol-terminated polythioether polymer and/or a thiol-terminated polyformal polymer. The polyamine can be an aromatic polyamine and/or an aromatic amine-terminated polythioether adduct. The sulfur-containing polyurea compositions are useful as aerospace sealants.

Abstract translation: 公开了含有多异氰酸酯和多胺的含硫聚脲组合物。 多异氰酸酯包括含有具有对硫醇基具有不同反应性的异氰酸酯基的二异氰酸酯的反应物和硫醇封端的含硫聚合物如硫醇封端的聚硫醚聚合物和/或硫醇封端的聚甲醛聚合物的反应产物。 多胺可以是芳族多胺和/或芳族胺封端的聚硫醚加合物。 含硫聚脲组合物可用作航空密封剂。

公开(公告)号：US09725556B2

公开(公告)日：2017-08-08

申请号：US14532034

申请日：2014-11-04

Applicant: PRC-DeSoto International, Inc.

Inventor： Juexiao Cai ,  Stephen J. Hobbs ,  Marfi Ito ,  Scott Moravek ,  Renhe Lin

IPC: C08G18/52 ,  C08G18/77 ,  C08G18/75 ,  C08G18/76 ,  C08G18/10 ,  C08G18/32 ,  C08G18/38 ,  C09J175/02

CPC classification number: C08G18/52 ,  C08G18/10 ,  C08G18/324 ,  C08G18/3868 ,  C08G18/755 ,  C08G18/7621 ,  C08G18/775 ,  C08G2190/00 ,  C09J175/02 ,  Y10T428/20 ,  C08G18/6685

Abstract: Sulfur-containing polyurea compositions comprising a polyisocyanate and a polyamine are disclosed. The polyisocyanate comprises the reaction product of reactants comprising a diisocyanate having isocyanate groups with different reactivities toward thiol groups, and a thiol-terminated sulfur-containing polymer such as a thiol-terminated polythioether polymer and/or a thiol-terminated polyformal polymer. The polyamine can be an aromatic polyamine and/or an aromatic amine-terminated polythioether adduct. The sulfur-containing polyurea compositions are useful as aerospace sealants.