MANUFACTURE AND USE OF COMPOSITE STRUCTURE CONTAINING PRECIPITATED CARBONATE Russian patent published in 2017 - IPC D21H17/69 D21H17/24 D21H17/28 C01F11/18 

Abstract RU 2606433 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a composite structure and a method of producing a composite structure having a polysaccharide body on which is a carbonate is deposited, characterised by that it comprises preparing a solution of carbonate ions; mixing polysaccharide in a form, having free hydroxyl groups on its surface, with solution of carbonate ions to produce carbonate-polysaccharide suspension; and depositing carbonate salt from suspension onto polysaccharide.

EFFECT: precipitated carbonate-polysaccharide structure, which, when it is used as filler, improves structural strength of paper or cardboard, gypsum board, plastic or rubber, inter alia, as well as level of rigidity and optical properties (whiteness and opacity) of paper or cardboard together with other fillers or separately from them, in particular with carbonates; furthermore, invention improves hardening of printing ink on surface of paper or cardboard.

21 cl, 7 dwg, 7 tbl

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RU 2 606 433 C2

Authors

Saastamojnen Sakari

Grenblom Teemu

Grenroos Lars

Dates

2017-01-10Published

2013-05-28Filed