FIELD: chemistry.
SUBSTANCE: invention relates to two-component composition for soil reinforcement by injection. The composition contains an isocyanate component and a hydroxyl component in equal volumes. The isocyanate component is polyphenylene polymethylene polyisocyanate containing 30-31% NCO groups. The hydroxyl component is a homogeneous mixture of an alkoxylated alkane diol or triol, with molecular weight of 370-600 or a mixture thereof, alkane diol or alkoxylated alkane diol with molecular weight of 60-200 and a urethane-formation catalyst. The urethane-formation catalyst is selected from a group comprising diazabicyclooctane, tin dibutyl dilaurate, dimethyl ethanolamine and methyl diethanolamine.
EFFECT: composition has low viscosity and is not susceptible to demixing, while maintaining a low reaction temperature and limited foaming.
2 tbl, 20 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SOIL REINFORCEMENT COMPOSITION | 2013 |
|
RU2531825C1 |
| POLYURETHANE COMPOSITION FOR DRESSING MATERIAL | 1993 |
|
RU2069219C1 |
| METHOD OF PREPARING ELASTIC POLYURETHANE FOAM FOR MANUFACTURING SOFT FURNITURE MEMBERS | 1996 |
|
RU2128193C1 |
| METHOD OF FORMING MONOCOMPONENT POLYURETHANE HEAT-SEALING SYSTEM | 1999 |
|
RU2171266C2 |
| MOLDING BLEND FOR MANUFACTURING ELASTOMERIC PRODUCTS | 1991 |
|
RU2022973C1 |
| LIQUID HYDROXYLAMINE CURING AGENT FOR ISOCYANATE PREPOLYMERS FOR PRODUCING SPRAYED POLYUREA-URETHANE COATINGS | 2013 |
|
RU2522427C1 |
| POTTING COMPOUND FOR PRODUCING RIGID POLYURETHANE FOR PRE-INSULATED PIPES | 2013 |
|
RU2517755C1 |
| METHOD OF OBTAINING POLYOIL COMPOSITION WITH HYDROXYL NUMBER 400-650 KOH/G | 0 |
|
SU1558929A1 |
| METHOD FOR OBTAINING POLYETHERURETHANETHIOLES WITH ALCOXYSILANE GROUPS | 2018 |
|
RU2669567C1 |
| MEDICINAL BANDAGE | 2002 |
|
RU2245164C2 |
