RU2512964C1 - Composition of mulching covering (versions) - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: composition of mulching covering contains lignosulfonate, carbamide, Na-carboxymethylcellulose, potassium chloride, and as natural additives moss of species Takakiopsida and needles of larch Larix lariciana, water wt %: lignosulfonate 0.1-0.4, Carbamide 0.2-0.6, Na-carboxymethylcellulose 0.3-0.4, potassium chloride 1-3, moss of species Takakiopsida 10-15, needles of larch Larix lariciana 8-9, water - the remaining part. Also claimed are other versions of compositions of polymeric-natural mulching covering.

EFFECT: extension of arsenal of compositions for soil mulching.

3 cl, 1 tbl

Description

The invention relates to the chemistry of synthetic substances - polymeric mixed with organic and natural substances, for example, for urban and agricultural purposes, or - to compositions for mulching various types of soils, lawns, park areas.

Previously known was the composition of the mulching coating, in which polyacrylamide, urea, lignosulfonate, potassium chloride and water were used, in the following mass% ratio: polyacrylamide 0.25-0.75, lignosulfonate 0.5-1.5, carbamide 0.4 -0.8, potassium chloride 1-3, water the rest (Russian patent No. 2034899 C1.1995, class of international classification of patents, C09K 17/00).

But such a patent did not use natural materials - this is a significant drawback. In nature, there are many materials suitable for this - many mosses, various types of wood waste, bark, shavings, wood chips. Moreover, different types of wood can be combined with different types of synthetic materials - polymers, their waste - if they are harmless to the environment.

In my invention, the technical result is the use of numerous types of natural materials, that is, expanding the arsenal of compositions for mulching soils.

This result is achieved in that the composition of the mulching coating according to the invention contains lignosulfonate, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Takakiopsida and needles of larch Larix lariciana, water in the wake. wt.%:

lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss species Takakiopsida 10-15 Larch needles Larix lariciana 8-9 water rest.

As options, the following compositions were invented, in which important ratios for moss and needles were changed (selected):

moss species Takakiopsida 10-15 Larch needles Larix lariciana 9.1-9.5

or

moss species Takakiopsida 10-15 Larch needles Larix lariciana 9.8-11

The composition is prepared as follows.

These ingredients are individually milled and then mixed in an aqueous medium.

The table shows various examples for the variants of the invention:

Table Ingredients Wt% one 2 3 Lignosulfonate, wt.% 0.1 0.25 0.4 carbamide wt.% 0.2 0.4 0.6 Na-carboxymethyl cellulose, wt.% 0.3 0.35 0.4 potassium chloride, wt.% one 2 3 moss of the species Takakiopsida, wt.% 10 13 fifteen Needles of larch Larix lariciana, wt.% 8 9.5 10

Claims (3)

1. The composition of the mulching coating, characterized in that it contains lignosulfonate, urea, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Takakiopsida and needles of larch Larix lariciana, water in wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss species Takakiopsida 10-15 Larch needles Larix lariciana 8-9 water rest 2. The composition of the mulching coating, characterized in that it contains lignosulfonate, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Takakiopsida and needles of larch Larix lariciana, water in wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss species Takakiopsida 10-15 Larch needles Larix lariciana 9.1-9.5 water rest 3. The composition of the mulch coating, characterized in that it contains lignosulfonate, carbamide, Na-carboxymethyl cellulose, potassium chloride, and as natural additives moss of the species Takakiopsida and needles of larch Larix lariciana, water in wt.%:
lignosulfonate 0.1-0.4 urea 0.2-0.6 Na-carboxymethyl cellulose 0.3-0.4 potassium chloride 1-3 moss species Takakiopsida 10-15 Larch needles Larix lariciana 9.8-11 water rest