FIELD: chemistry.
SUBSTANCE: method involves binding alkylene oxides to N-functional starting materials in a back-mixing reactor. The starting components are continuously fed into the reactor. One of said N-functional substances is solid at room temperature. Paste is prepared from the solid starting substance and also continuously fed into the back-mixing reactor. The mixture for producing polyether alcohols is in form of a paste and consists of at least one N-functional compound which is solid at room temperature and at least one N-functional compound which is liquid at room temperature.
EFFECT: simple and safe method of producing polyether alcohols, which enables to obtain products with narrow molecular weight distribution and where starting materials can be continuously fed.
22 cl, 4 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF PRODUCING POLYETHER POLYOLS | 2011 |
|
RU2566295C2 |
METHOD OF PRODUCING POLYETHER-ESTER POLYOLS AND USE THEREOF TO PRODUCE HARD OR FOAMED POLYURETHANE MATERIALS | 2009 |
|
RU2517702C2 |
METHOD OF PRODUCING SOLID POLYURETHANE FOAM MATERIALS | 2012 |
|
RU2585290C2 |
METHOD OF PRODUCING POLYESTER ALCOHOLS | 2011 |
|
RU2591208C2 |
METHOD FOR PRODUCING RIGID POLYURETHANE FOAM | 2010 |
|
RU2553254C2 |
METHOD OF MAKING COMPOSITE ELEMENTS USING ISOCYANATE-BASED FOAM PLASTICS | 2008 |
|
RU2466019C2 |
METHOD OF OBTAINING POLYESTER ALCOHOLS FOR MAKING POLYURETHANES | 2005 |
|
RU2342407C2 |
POLYETHERPOLYOL PRODUCTION PROCESS | 2002 |
|
RU2298565C2 |
POLYETHERPOLYOL PRODUCTION METHOD | 2002 |
|
RU2301815C2 |
METHOD FOR PRODUCING RIGID POLYURETHANE FOAM MATERIALS | 2012 |
|
RU2597931C2 |
Authors
Dates
2012-04-20—Published
2008-12-16—Filed