FIELD: process engineering.
SUBSTANCE: invention relates to application of coating on pipeline surface. Note here that this process comprises the steps that follow. Coating composition is made containing first component including at least one polyisocyanate and second component including at least 20 wt % of aliphatic cyclic secondary diamine with secondary amine substitutes not including ether groups. Note here that said aliphatic cyclic secondary diamine contains two hexyl rings bonded by bridge, or one hexyl ring. Note that said composition contains approx 15-45 vol % of inorganic filler particles. First and second components are combined to get a fluid mix. The latter is applied on pipeline inner surface and cured to make hardened coating. Besides, invention relates to two-component coating compositions containing aliphatic cyclic secondary diamine and to process of its application on the surfaces of pipeline (for example, for drinking water).
EFFECT: impermeable composition suitable for contact with drinking water.
22 cl, 9 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SILANE-CONTAINING POLYUREA COATINGS | 2012 |
|
RU2571136C2 |
| COATING | 2010 |
|
RU2529862C2 |
| CURABLE COMPOSITIONS CONTAINING COMPOUNDS WITH REACTIVE FUNCTIONAL GROUPS AND POLYSILOXANE RESINS, INDUSTRIAL PRODUCTS AND PRODUCTS CONTAINING COATINGS DERIVED FROM COMPOSITIONS, AND A METHOD FOR REDUCING THE ACCUMULATION OF CONTAMINANTS ON THE SUBSTRATE | 2019 |
|
RU2764133C1 |
| ASYMMETRIC DIALDIMINE-CONTAINING POLYURETHANE COMPOSITION | 2008 |
|
RU2485143C2 |
| SUBSTRATES COATED WITH POLYUREA COATINGS AND COMPOSITION | 2007 |
|
RU2453571C2 |
| TWO-COMPONENT POLYURETHANE COMPOSITION FOR COATING BASED ON ORGANIC SOLVENTS | 2011 |
|
RU2554864C2 |
| COATING COMPOSITIONS CONTAINING POLYUREA AND PHOSPHORUS-CONTAINING POLYOL | 2009 |
|
RU2478658C2 |
| ALDIMINES AND ALDIMINE-CONTAINING COMPOSITIONS | 2008 |
|
RU2489421C2 |
| JOINTLY REACTING MATERIALS AND THREE-DIMENSIONAL PRINTING METHODS | 2015 |
|
RU2767029C2 |
| TRIAMINE/ASPARTATE BASED HARDENERS AND COATINGS CONTAINING SAID HARDENERS | 2007 |
|
RU2452726C2 |
