NEW ANTI-AGGLOMERATES FOR RUBBER INDUSTRY Russian patent published in 2020 - IPC C08L23/22 C08J3/03 C08J3/24 C08K3/10 C08K5/00 C08L9/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing an aqueous suspension containing elastomeric particles of any shape suspended therein and having a weight-average particle size of 0.3–10.00 mm. Organic medium contains at least one elastomer and an organic diluent. Organic medium is in contact with an aqueous medium containing at least one compound with a Lower Critical Dissolution Temperature (LCDT) having a turbidity point of 0–100 °C, selected from Lutensol, methylcellulose, hydroxypropyl cellulose, PolyNIPAAM, hydroxyethyl cellulose, hydroxyethyl methylcellulose, hydroxypropyl methylcellulose. Then, an organic diluent is at least partially removed to obtain an aqueous suspension containing elastomer particles. Compound with a lower critical dissolution temperature is a compound which is soluble in the liquid medium at a lower temperature but is deposited from the liquid medium at a temperature higher than the critical dissolution temperature, also called the deposition threshold.

EFFECT: technical result is obtaining elastomeric particles in an aqueous medium with low or low tendency to agglomeration.

39 cl, 13 tbl, 60 ex