COATED FIBER CEMENT PRODUCTS AND THEIR MANUFACTURE METHODS Russian patent published in 2021 - IPC C04B41/71 E04F13/77 

Abstract RU 2762053 C2

FIELD: building materials.

SUBSTANCE: group of inventions relates to coated fiber cement products and methods for manufacturing such products. The method for manufacturing coated fiber cement products includes following stages: providing a cured fiber cement product having at least one surface; applying the first layer of primer containing at least a binder and a pigment to at least one surface of the cured fiber cement product, where the binder is obtained by emulsion polymerization in an aqueous medium; applying at least one layer of a radiation-cured composition in the form of wet coating on top of the first layer, wherein the radiation-cured composition contains at least one pigment, the first polymer (A) having ethylene-unsaturated double bonds, which is polyurethane acrylate, and the second polymer (B), which is cross-linked chemically and under the influence of radiation; curing of a layer of the radiation-cured composition by exposure to radiation.

EFFECT: restriction and prevention of the movement of pigments through coating layers, the prevention of chemical destabilization and destruction of pigments.

17 cl

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RU 2 762 053 C2

Authors

Schmidt, Gerhard

Hoque-Chowdhury, Heidi

Dates

2021-12-15Published

2017-12-18Filed