FIELD: polymer production.
SUBSTANCE: invention relates to production of polyurethane molded products having dense periphery and cellular core using a mixture of foaming agents, particularly containing 50-99% 1,1,1,3,3-pentafluorobutane (HPC 365 mfc) and 1-50% 1,1,1,2,3,3,3-heptafluoropropane (HPC 227 ea). Polyurethane molded products according to invention are characterized by density values varying between 300 and 600 kg/m3 and can be used as wood simulation.
EFFECT: expanded polyurethane foams production possibilities.
3 cl, 2 tbl
Title | Year | Author | Number |
---|---|---|---|
FOAMING AGENT MIXTURE, COMPONENT, INCOMBUSTIBLE MIXTURE PRECURSOR FOR PREPARING FOAMED PLASTICS, AND FOAMED PLASTICS | 2002 |
|
RU2298020C2 |
METHOD OF PRODUCING SOFT TO SEMI-RIGID POLYURETHANE INTEGRAL FOAMED PLASTICS | 2000 |
|
RU2263687C2 |
FLUORO-HYDROCARBON COMPOSITIONS | 2004 |
|
RU2395539C2 |
STABLE IN STORAGE POLYOL COMPOSITIONS FOR OBTAINING RIGID POLYISOCYANURATE FOAM | 2010 |
|
RU2527956C2 |
LOW-LOSS FOAM COMPOSITION WITH AND LOW-LOSS FOAM-LAYERED CABLE | 2003 |
|
RU2334768C2 |
AMINE-INITIATED POLYOLS AND RIGID POLYURETHANE FOAM MADE THEREFROM | 2007 |
|
RU2452742C2 |
HYDROFLUOROLEFIN/WATER-BLOWN SYSTEMS FOR RIGID FOAM MATERIALS | 2012 |
|
RU2611493C2 |
HYBRID POLYESTER-POLYETHER POLYOLS FOR IMPROVED DEMOLD EXPANSION IN POLYURETHANE RIGID FOAMS | 2012 |
|
RU2609019C2 |
POLYURATHANE OR POLYISOCYANURATE FOAMS, FOAMED BY HYDROFLUOROCARBONS AND CARBON DIOXIDE | 2003 |
|
RU2342405C2 |
COMPOSITION CONTAINING FLUORO-SUBSTITUTED OLEFINS AND METHOD OF ITS APPLICATION | 2005 |
|
RU2620423C2 |
Authors
Dates
2006-09-27—Published
2001-12-05—Filed