FIELD: chemical or physical processes.
SUBSTANCE: present invention relates to use of polyester polyol in production of elastic polyurethane foam to change residual deformation at compression of finished foam. Said polyester polyol contains at least 50 ppm latent aldehyde and/or said polyether polyol can be obtained by ring opening polymerisation of alkylene oxide containing at least 200 ppm free aldehyde.
EFFECT: elastic polyurethane foams produced using said polyester polyol exhibit mainly low residual deformation at compression in wet and/or dry conditions.
1 cl, 9 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING POLYURETHANE FOAM | 2016 |
|
RU2734761C2 |
| ELASTIC POLYURETHANE FOAM MANUFACTURE PROCESS | 2000 |
|
RU2222552C2 |
| METHOD FOR PRODUCING POLYETHER POLYOL WITH A HIGH ETHYLENE OXIDE CONTENT | 2018 |
|
RU2793131C2 |
| METHOD OF PRODUCING RIGID POLYURETHANE OR URETHANE-MODIFIED POLYISOCYANURATE FOAMS | 2018 |
|
RU2767443C2 |
| METHOD OF PRODUCING VISCOELASTIC POLYURETHANE PLASTICISED FOAM PLASTIC WITH OPEN CELLS | 2007 |
|
RU2435795C2 |
| DEVICES WITH SOUND AND HEAT INSULATION BASED ON VISCOELASTIC POLYURETHANE | 2016 |
|
RU2699998C2 |
| FOAMED POLYURETHANE, SYNTHESIS METHOD THEREOF AND CONTINUOUS METHOD FOR SYNTHESIS OF ALKOXYLATED HYDROXYLATE OF PLANT OIL | 2006 |
|
RU2423391C2 |
| FOAMED POLYURETHANE OBTAINED FROM HYDROXYMETHYL-CONTAINING ALKYL ESTERS OF FATTY ACIDS | 2005 |
|
RU2417235C2 |
| POLYURETHANE FOAM PRODUCTION PROCESS AND POLYURETHANE FOAM THUS OBTAINED | 2002 |
|
RU2314321C2 |
| POLYURETHANE TYRES WITH IMPROVED OPERATING CHARACTERISTICS | 2014 |
|
RU2651447C2 |
