FIELD: manufacturing technology.
SUBSTANCE: invention relates to a method for producing flexible flame retardant polyurethane foam, flexible polyurethane foam, a molded product, and the use of propylene oxide-based polyol for producing flexible polyurethane foam. This method involves an interaction of propylene oxide-containing polyol with foaming reagents containing polyisocyanate and a foaming agent. Above polyol is prepared by ring-opening polymerization of alkylene oxide in the presence of a composite metal cyanide complex catalyst, and the polyol either does not contain ethylene oxide residues or contains ethylene oxide residues in an amount of at most 1 % w/w. Further, the polyol polydispersity index is from 1.18 to 1.5.
EFFECT: method for production allows to reduce the cost of produced flexible flame retardant polyurethane foam as well as to reduce the level of flame retardants in it.
11 cl, 4 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING POLYETHER POLYOL WITH A HIGH ETHYLENE OXIDE CONTENT | 2018 |
|
RU2793131C2 |
| POLYETHERPOLYOL PRODUCTION PROCESS | 2002 |
|
RU2298565C2 |
| RIGID POLYURETHANE FOAMS | 2013 |
|
RU2632198C2 |
| POLYETHERPOLYOL PRODUCTION METHOD | 2002 |
|
RU2301815C2 |
| METHOD FOR PRODUCING RIGID POLYURETHANE FOAM | 2010 |
|
RU2553254C2 |
| COMPOSITION, SUITABLE FOR OBTAINING POLYURETHANE SYSTEMS SUITABLE FOR HOT GLUING, APPLICATION THEREOF FOR MANUFACTURING LAMINATED STRUCTURES AND POLYURETHANE SYSTEM BASED THEREON | 2010 |
|
RU2572890C2 |
| FOAMED POLYURETHANE OBTAINED FROM HYDROXYMETHYL-CONTAINING ALKYL ESTERS OF FATTY ACIDS | 2005 |
|
RU2417235C2 |
| PLEX POLYESTERPOLYOLS FOR OBTAINING HARD POLYURETHANES | 2013 |
|
RU2643135C2 |
| METHOD OF MOULDING RIGID FOAMED POLYURETHANES WITH IMPROVED THERMAL CONDUCTIVITY | 2006 |
|
RU2418810C2 |
| POLYMERIC POLYOLS AND POLYMER DISPERSIONS OBTAINED FROM HYDROXYL-CONTAINING MATERIALS BASED ON VEGETABLE OIL | 2005 |
|
RU2412954C2 |
