An isocyanate-terminated prepolymer having three components. The first component is 30-60 wt % polymerized residues of a first polyol containing a substituent of formula (I) attached via a carbon-carbon single bond to a saturated carbon atom in a fatty acid hydrocarbyl group; wherein R 1 ...
KRASOL(R) ISOCYANATE (MDI)-TERMINATED PREPOLYMER 英文别名: KRASOL(R) ISOCYANATE (MDI)-TERMINATED PREPOLYMER 中文名: 中文别名: CBNumber: CB8351111 分子式: 分子量: 0 MOL File: Mol file 化学性质安全信息用途供应商1 KRASOL(R) ISOCYANATE (MDI)-TERMINATED PREPOLYMER化学性质 ...
An isocyanate-terminated prepolymer having three components. The first component is 30-60 wt % polymerized residues of a first polyol containing a substituent of formula (I) attached via a carbon-carbon single bond to a saturated carbon atom in a fatty acid hydrocarbyl group; wherein R 1 and...
The synthesis and characterization of NCO-terminated urethane prepolymer, as a base material for the process of gluing in medicine have been studied. A polyol system consisting of a polyether/polyester mixture, together with toluene diisocyanate was employed to synthesis the desired urethane-based prepo...
The methods involve preparing an amine-terminated first prepolymer by reacting isocyanate co... B Comeau,M Michalewich,DA Bulpett,... 被引量: 0发表: 2013年 PROCESS FOR PREPARING FINE POWDER POLYUREA AND GREASES THEREFROM Polyurea compounds are prepared by reacting amines and polyisoyanates in ...
专利名称：ISOCYANATE-TERMINATED PREPOLYMERS DERIVED FROM POLYETHER POLYOL MIXTURES HAVING LOW MONOL CONTENT AND THEIR USE IN POLYURETHANES 发明人：NIGEL BARKSBY 申请号：AU3998493 申请日：19930602 公开号：AU3998493A 公开日：19931209 专利内容由知识产权出版社提供 摘要：An isocyanate-terminated prepolymer ...
(a) preparing an OH-terminated prepolymer from(i) a high molecular weight polyol component, and/or(ii) a low molecular weight isocyanate- reactive component, and(iii) a polyisocyanate component comprising 4,4'-diisocyanato-dicyclohexyl- methane at an NCO/OH equivalent ratio of about 0.5:1 to ...
4)isocyanate terminated polyethers端异氰酸酯聚醚 5)isocyanate prepolymer异氰酸酯预聚物 1.Method of lowering content of free TDI in polyisocyanate prepolymeris introduced.介绍了降低多异氰酸酯预聚物中游离TDI含量的方法,以及我国当前的技术状况,并就发展方向提出了建议。
The present invention relates to an isocyanate-terminated prepolymer composition obtained from reaction of a methylene diphenylisocyanate, comprising at least 25 weight percent of the 2,4′- isomer, with a polycaprolactone polyol; and to polyurethane or polyurea elastomers obtained from the said ...
VISCOSITY STABLE ISOCYANATE-TERMINATED PREPOLYMER AND POLYOXYALKYLENE POLYETHER POLYOL HAVING IMPROVED STORAGE STABILITYPROBLEM TO BE SOLVED: To provide polyoxyalkylene polyols having improved storage stability which are prepared using a double metal... BD Lawrey,ブルース ディ ロウレイ,SD Seneker,......