|
2013
|
Invention
|
Method of preparing n1-(2-aminoethyl)-1,2-ethylenediamine. Disclosed is a method of preparing N1-... |
|
2012
|
Invention
|
Polyurethane modifier for pitch, pitch modified by same and use thereof. The present invention re... |
|
|
Invention
|
Method for preparing n-(2-aminoethyl)ethane-1,2-diamine. The present invention relates to a metho... |
|
2011
|
Invention
|
Method for intermittent preparation of low content trans-trans isomer-containing 4,4'-diaminodicy... |
|
|
Invention
|
Catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereof. The ca... |
|
2010
|
Invention
|
Fast mixing reactor and use thereof. A fast mixing reactor comprises: a first feed channel casing... |
|
|
Invention
|
Preparation of isocyanate by interface phosgenation reaction. A preparation method of isocyanate ... |
|
|
Invention
|
Jet reactor with dynamic spray nozzle and method for preparing isocyanates using the same. A jet ... |
|
2008
|
Invention
|
Preparation of liquid isocyanurate-modified polymethylene bis(phenylisocyanate) compositions of c... |
|
2007
|
Invention
|
Thermoplastic polyurethane elastomer with hydrolytic stability and preparing method thereof. A hy... |
