METHOD FOR PRODUCING LIGNOCELLULOSE MATERIALS IN PRESENCE OF CAPROLACTAM AND ITS OLIGOMERS Russian patent published in 2022 - IPC B27N3/00 B32B21/04 C08L97/00 

FIELD: building materials.

SUBSTANCE: group of inventions relates to a method for producing single- or multilayer lignocellulose materials consisting of one or several layers, as well as to lignocellulose materials produced by this method, and to the use of such lignocellulose materials in the manufacture of furniture, house construction, interior decoration and construction of exhibition stands. Method for producing single- or multilayer lignocellulose materials includes following stages: (I) mixing of components into one or more mixtures, (II) distribution of mixtures obtained at the stage (I) of the method with carpet formation, (III) pre-compaction of the distributed carpet, (IV) heating and pressing of the pre-compacted carpet, wherein mixtures used at the stage (I) of the method for one or several layers contain lignocellulose particles as component L, component A including caprolactam, caprolactam oligomers or mixtures thereof, isocyanate-based binders containing multinucleated diphenylmethanediisocyanate as component B, water as component C.

EFFECT: ensuring high initial bondability (stickiness in the uncured state) of the distributed carpet, as well as providing a shorter pressing time in the method for producing single- or multilayer lignocellulose materials.

17 cl, 2 tbl