COATING MADE OF CRUSHED FOAM Russian patent published in 2021 - IPC C08J7/04 D06N3/00 

FIELD: coatings.

SUBSTANCE: invention relates to a method for producing coating on woven material. A method for producing coating made of crushed dried foam on woven material is proposed. The method includes the introduction of gas to an aqueous composition for coating to obtain wet foam, application of a layer of wet foam to woven material, drying of the layer of wet foam to a water content from 2% to 20% by weight to obtain a layer of dried foam, and one or more stages of crushing the layer of dried foam to obtain coating made of crushed dried foam. The specified aqueous composition for coating contains one or more binding polymers and a set of multilayer copolymer particles having a core and a shell with average weighted diameter from 2 to 20 mcm. The specified multilayer copolymer particles are multilayer copolymer particles with a gradually changing refractive index (GRIN) containing a core, a glass transition temperature (Tg) of which is 20°C or less.

EFFECT: obtaining more compact and homogenous coatings of greater thickness and greater weight per a unit of surface area of substrate, while maintaining soft drapery and “tactile sensations” of initial fabric, as well as having high strength at washing and dry cleaning and elasticity at low temperature.

6 cl, 2 tbl