| 发明名称 |
POLYUREA PREPOLYMERS MADE FROM PRIMARY AND SECONDARY DIAMINES |
| 摘要 |
Novel polyurea prepolymer and quasi-prepolymers are contemplated, the compositions being the reaction products of various isocyanate components with various polyamine components. Isocyanate components contemplated include uretonimine-modified 4,4′ methylene diphenyl diisocyanate (MDI) 4,4′ MDI, 2,4′ MDI, aliphatic hexamethylene diisocyanate (HDI) trimer, HDI allophanate, and aliphatic HDI biuret. Polyamine components contemplated include primary amine-terminated poly(oxypropylene), secondary isopropylamine-terminated poly(oxypropylene), tetraethyl N,N′-(methylenebis(2-methyl-4,1-cyclohexanediyl)) bisaspartate, and poly[(3-aminopropyl)methylsiloxane-co-diphenylsiloxane]. |
| 申请公布号 |
US2016264709(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201615068853 |
申请日期 |
2016.03.14 |
| 申请人 |
SUPER SKIN SYSTEMS, INC. |
发明人 |
SMITH STUART BRUCE |
| 分类号 |
C08G18/38;C08G18/61 |
主分类号 |
C08G18/38 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A polyurea prepolymer comprising the reaction product of a isocyanate component and a polyamine component;
wherein the isocyanate component is selected from one or more of the group of: uretonimine-modified 4,4′ methylene diphenyl diisocyanate (MDI), 4,4′ MDI, 2,4′ MDI, aliphatic hexamethylene diisocyanate (HDI) trimer, HDI allophanate, aliphatic HDI biuret, and; wherein the polyamine component is selected from one or more of the group of: primary amine-terminated poly(oxypropylene), secondary isopropylamine-terminated poly(oxypropylene), tetraethyl N,N′-(methylenebis(2-methyl-4,1-cyclohexanediyl)) bisaspartate, poly[(3-aminopropyl)methylsiloxane-co-diphenylsiloxane]. |
| 地址 |
LAWRENCEVILLE GA US |
