FIELD: chemical or physical processes.
SUBSTANCE: present invention relates to a method of reducing emission of formaldehyde, acetaldehyde and propionaldehyde from polyurethane foam. Emission reduction is ensured by using a reaction mixture containing at least one isocyanate-reactive component, selected from polyether polyol, isocyanate component and cyanoacetamide, as well as additionally reducing formaldehyde content of agent. Formaldehyde reducing agent contains one or more amine components and an auxiliary reagent. One or more amine components is a mixture, containing triethyltetramines, tetraethylpentamines, pentaethyl hexamines, hexaethylheptamines, heptaethyl octamines and/or octa-ethyl-nonamines. Auxiliary reagent is selected from a group, including a cyclic urea, which is substituted with at least one isocyanate-reactive group, a free radical scavenger, a polymeric acid, containing at least three identical repeating monomers from either unsaturated carboxylic acid or anhydride.
EFFECT: said method enables to reduce the emission of formaldehyde, acetaldehyde and propionaldehyde from polyurethane foam while maintaining its properties.
28 cl, 5 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR REDUCING AMOUNT OF ALDEHYDES RELEASED FROM POLYURETHANE FOAM | 2015 |
|
RU2712184C2 |
| COMPOSITION WITH REDUCED ALDEHYDE EMISSION | 2018 |
|
RU2783442C2 |
| METHOD FOR REDUCTION IN ALDEHYDE RELEASE IN POLYURETHANE-CONTAINING MATERIALS | 2017 |
|
RU2773256C2 |
| METHOD OF PRODUCING RIGID POLYURETHANE OR URETHANE-MODIFIED POLYISOCYANURATE FOAMS | 2018 |
|
RU2767443C2 |
| POLYURETHANES, MANUFACTURED WITH APPLICATION OF COPPER-CONTAINING CATALYSTS | 2011 |
|
RU2575128C2 |
| MICROCELLULAR AND NONCELLULAR LIGHT-RESISTANT POLYURETHANE MATERIAL AND A METHOD OF PREPARING THE SAME | 2003 |
|
RU2315780C2 |
| REACTIVE POLYURETHANE HOT-MELT ADHESIVES WITH LOW CONTENT OF MONOMERIC ISOCYANATES | 2006 |
|
RU2408611C2 |
| MULTILAYER COATING SYSTEM | 2006 |
|
RU2425066C2 |
| POLYURETHANES PRODUCED USING ZINC CATALYSTS | 2011 |
|
RU2571419C2 |
| FOAM POLYURETHANE COMPOSITION, METHOD OF PRODUCING FOAM POLYURETHANE AND CATALYST COMPOSITION USED THEREFOR | 2012 |
|
RU2572626C2 |
