发明授权
US3645942A Foundry process using a propoxylated toluene diamine as an extender with a castor oil-aromatic diisocyanate prepolymer
失效
使用丙氧基硅烷二胺作为延长剂与蓖麻油芳族二异氰酸酯预聚物的方法
- 专利标题： Foundry process using a propoxylated toluene diamine as an extender with a castor oil-aromatic diisocyanate prepolymer
- 专利标题（中）： 使用丙氧基硅烷二胺作为延长剂与蓖麻油芳族二异氰酸酯预聚物的方法
-
申请号： US3645942D申请日： 1970-04-29
-
公开(公告)号： US3645942A公开(公告)日： 1972-02-29
- 发明人: BROWN LLOYD H , KLEMM LAURENCE J
- 申请人： QUAKER OATS CO
- 专利权人： Quaker Oats Co
- 当前专利权人： Quaker Oats Co
- 优先权： US3310270 1970-04-29
- 主分类号： B22C1/22
- IPC分类号： B22C1/22 ; B22C1/24 ; C08G18/36 ; C08G18/50 ; C08G18/80 ; C08G22/04
摘要：
A FOUNDRY PROCESS IS DISCLOSED INCLUDING THE USE OF NOVEL CORE BINDERS WHICH ARE PREPARED BY FIRST FORMING A PREPOLYMER FROM AN AROMATIC POLYISOCYANATE AND NONDRYING CASTOR OIL; THEN MIXING THE PREPOLYMER WITH A HIGH MOLECULAR WEIGHT HYDROXY CONTAINING MATERIAL AND AN ACCELERATOR. THE HIGH MOLECULAR WEIGHT HYDROXY CONTAINING MATERIAL CAN BE EITHER AN ALIPHATIC POLYETHER POLYOL OR AN AROMATIC POLYETHER POLYOL. THE ACCELERATOR CAN BE EITHER A METAL NAPHTHENATE, ORGANOTIN COMPOUND, OR TERTIARY AMINE. THE PREPOLYMER MAY ALSO INCLUDE TUNG OIL.