Numerophobia material to slow the hardening of concrete

 

(57) Abstract:

1. Numerophobia material to slow the hardening of concrete, made of a substrate and a deposited slow down the hardening of the coating containing the concentrate sulfite-alcohol stillage, a water-soluble polymer and antiseptic, characterized in that the coating as an antiseptic contains dimethyl sulfoxide in the following ratio, wt.%:

The concentrate of sulfide-spirit bards - 93,50 - 99,49

Water-soluble polymer - 0,5 - 6,0

Dimethyl sulfoxide - 0,01 - 0,50

as the substrate used paper with a degree of sizing of 0.5 - 2.0 mm and surface water absorbency 5 - 20 g or synthetic film.

2. The material under item 1, characterized in that as the water-soluble polymer coating contains sodium carboxymethyl cellulose, or modified acetylcellulose, or polyvinyl alcohol.

 

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34 cl, 9 tbl, 2 ex

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13 cl, 4 ex, 3 tbl, 4 dwg

FIELD: fibrous materials.

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2 tbl, 25 ex

FIELD: fungicides.

SUBSTANCE: invention proposes use of strobilurines as fungicidal agents designed to be applied in the form of dispersions in industrial process water and in the form of pulp both used in paper industry. Application areas include preservation of wet sheet, protection against mildew, in particular protection of paper products, or other areas wherein fungicidal or mildew-controlling agents are required. Water systems, which can be treated with strobilurines include papermaking machine systems, fibrous intermediate and paper systems, cooling towers, and heat-exchangers.

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38 cl, 2 tbl, 4 ex

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3 cl, 5 ex, 4 tbl

FIELD: textile fabrics, paper.

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4 cl, 5 ex

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8 cl, 1 ex

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20 cl, 9 dwg, 7 ex

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14 cl

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5 cl, 1 tbl

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2 dwg, 3 tbl, 2 ex

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FIELD: chemistry.

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24 cl, 8 ex, 1 dwg

FIELD: technological processes; chemistry.

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11 cl, 3 dwg

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14 cl, 3 dwg

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FIELD: chemistry.

SUBSTANCE: coating is a matrix material into which a mixture of high-strength particles having an irregular shape and spherical solid particles essentially without cutting edges are added. The high-strength particles have Mohs hardness of at least 6, and the solid particles have Mohs hardness of at least 3, where the average diametre of the solid particles is equal to or less than the average diametre of the high-strength particles. The matrix material is a synthetic resin based on melamine, acrylate, epoxide, polyurethane, polyamide, polyester, polyimide, caoutchouc, rubber or mixtures thereof. Said wear-proof coating can be used to make wear-resistant surfaces on wooden materials, decorative paper or wood-fibre boards having a decorative print, in making parquet floors, laminated floors, furniture surfaces and working surfaces, as well as for making wear-resistant surfaces of layers on substrates made from metal, glass, ceramic, plastic, concrete or other materials.

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16 cl, 2 dwg, 6 tbl

FIELD: construction.

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EFFECT: improved physical properties of ground paper and expanded assortment of paper tapes to cover joints.

22 cl, 1 dwg, 1 ex

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