MAT AND GYPSUM PANELS SUITABLE FOR WET OR DAMP ZONES Russian patent published in 2019 - IPC B32B13/00 B32B13/14 D21H11/00 D21H13/00 D21H17/33 D21H17/37 D04H1/587 E04C2/04 D04H13/00 

Abstract RU 2689751 C2

FIELD: manufacturing technology.

SUBSTANCE: invention relates to a fibrous facing mat for making a gypsum board, to a gypsum panel containing the said facing mat, and to a system containing the above gypsum board. Fibrous mat contains at least one layer of non-woven material and a binder composition. Binding composition is 10–40 wt% of mat weight. Binding composition contains a copolymer containing a comonomer link of a vinyl ester of an alpha-branched aliphatic monocarboxylic acid, and said copolymer is present in amount of 25–100 wt% of weight of binder composition.

EFFECT: improved characteristics of adhesion between gypsum core and mat, while maintaining mechanical strength.

33 cl, 11 tbl, 9 ex

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RU 2 689 751 C2

Authors

Feno Emmanyuel

Berlioz Mark

Merle Samyuel

Leklerk Klod

Dates

2019-05-28Published

2015-10-06Filed