RU2453362C1 - Emulsifying agent for producing oil-in-water and water-in-oil emulsions - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: present invention relates to emulsifying agents used to prepare water-in-oil or oil-in-water emulsions. Described is an emulsifying agent for producing an oil-in-water emulsion and a water-in-oil emulsion containing a mixture of a sodium salt of a copolymer of acrylic and methacrylic acid, sodium thiosulphate, sodium citrate, stearic acid, benzyl amine, colamine, engine oil, caustic soda and water, with the following ratio of components, wt %: sodium salt of a copolymer of acrylic and methacrylic acid (with 50:50 molar ratio of monomers) 2-4, sodium thiosulphate 3-9, sodium citrate 4-8, stearic acid 12-18, benzyl amine 3-8, colamine 2-6, engine oil 20-25, caustic soda 4-6, water being the balance.

EFFECT: obtaining a highly efficient emulsifying agent for producing roofing tar.

6 ex

Description

The present invention relates to emulsifiers used to create roofing mastics of various compositions using crosslinkable polymeric materials to increase waterproofing and adhesion to surfaces of various materials. The proposed method allows to obtain a highly effective emulsifier for creating roofing mastics.

Known emulsifier to obtain an acidic bitumen emulsion, which is a composition comprising alkylamine derivatives, in particular propylene diamine and colofan. The emulsifier content in bitumen is 0.15-0.2%, intended for road surfaces (EPO No. 0861686, MKI B01F 17/00, C08 193/00, 02.09.1998).

The disadvantage of this emulsifier is the inability to use it to create roofing mastics, because it is impossible to create reliable waterproofing.

Known solid emulsifier, which use finely ground quicklime. A suspension of fine quicklime is obtained in the presence of 10% water, and the mixing of bitumen is carried out for 10-25 minutes (SU No. 1597374, MKI C08I 95/00, 10/07/1990).

The disadvantage of this emulsifier is the difficulty of obtaining a sufficiently mobile emulsion due to the use of asbestos.

Known emulsifier containing aliphatic amines, aminated lignin, imidazolines, anionic polymer dispersants, hydroxycarboxylic acids, saccharides, sugar alcohols and polyhydric alcohols (US No. 5928418, MKI C09D 195/00).

The disadvantage of this emulsifier is the inability to create a waterproofing roofing mastic.

Closest to the invention in technical essence and the achieved result is a method for producing an emulsifier by reacting alkenylene succinic, for example polyisobutylene succinic, anhydride with a molecular weight of 300-3000 with triethanolamine or polyamine in an industrial oil medium (prototype).

Alkenyl succinic anhydride and triethanolamine are used in a molecular ratio of 1: (1.05-2.0), and alkenyl succinic anhydride and polyamine 1: (0.19-0.3) (RU No. 97110243/04, MKI B01F 3/08, C06B 23/00, 05/27/1999 g .).

This oil-soluble polymer emulsifier is designed to create emulsion coolant.

The disadvantage of this emulsifier is the inability to create an emulsion of the type water in oil.

The basis of the present invention is the creation of an emulsifier to obtain an emulsion of the type "water in oil" and "oil in water" for the possibility of their use in construction, in particular for the manufacture of waterproofing mastic.

The problem is solved in that the composition of the proposed emulsifier instead of alkenyl succinic anhydride and polyamine includes a mixture of the sodium salt of a copolymer of acrylic and methacrylic acid, sodium thiosulfate, sodium citrate, stearic acid, benzylamine, colamine, machine oil, caustic and water in the following ratio of components, wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acid (at a molar ratio of monomers of 50:50) 2-4 sodium thiosulfate 3-9 sodium citrate 4-8 stearic acid 12-18 benzylamine 3-8 colamine 2-6 machine oil 20-25 caustic 4-6 water rest.

Working solutions can have the following concentrations, wt.%: 0.15-0.2. The sodium salt of a copolymer of acrylic and methacrylic acids is a polymer of the formula:

C _a H _b O _c S _d K _e Na _f ,

where a from 1215 to 1418; b from 1025 to 1218; s from 804 to 906; d is from 1 to 5; e from 1 to 6; f from 378 to 450, with the content of fragments in K from 0.21 to 1.35 mol%. formulas:

With the content of fragments on Na from 75.62 to 81.43 mol%. formulas:

With a content of residue from 9.08 to 15.03 mol%. formulas:

Sodium thiosulfate

Sodium citrate TU 2499-005-00343227-2002

Stearic acid

Benzylamine

Colamine

Machine oil

Caustic

Drinking water GOST 2874-73

An analysis of the known solutions selected in the search process showed that in science there is no object similar in terms of the claimed combination of features and the presence of the above properties, which allows us to conclude that the claimed object meets the criteria of “novelty” and “inventive step”.

To prove compliance of the claimed invention with the criterion of "industrial applicability" we give examples of specific performance.

Example 1 (prototype)

An oil-soluble polymer emulsifier is obtained by mixing polyisobutylene succinic anhydride with triethanolamine or polyamine in an industrial oil medium and heating in an inert gas stream to isolate the resulting water and filter it from impurities.

Working solutions with a mass concentration of 0.15-0.2 were prepared from the polymer thus obtained.

Working solutions were used for the manufacture of roofing mastic composition (h):

bitumen one hundred sodium thiosulfate 1.5 emulsifier 2.4 industrial oil 65 sodium citrate 6 stearic acid fifteen colamine 9 water 82.

Adhesion to the roofing material and waterproofing are unsatisfactory.

Example 2 (proposed)

In the conditions of example 1, but when used to prepare the emulsifier of the following components in wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acids (when the mass ratio of monomers 50:50) one sodium thiosulfate 3 sodium citrate four stearic acid 12 benzylamine 3 colamine 2 machine oil twenty caustic four water rest.

An emulsifier is prepared by dissolving stearic acid in engine oil, and sodium thiosulfate, sodium citrate, benzylamine, colamine, sodium salt of a copolymer of acrylic and methacrylic acids and caustic in water and mix the hot solutions in a special mixer with a high-performance mixer.

A working solution with a concentration of 0.15 wt.% Is prepared from the emulsion obtained.

Adhesion to the roofing material and waterproofing are satisfactory.

Example 3

In the conditions of example 2, but when used to prepare the emulsifier of the following components in wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acids (with a mass ratio of 50:50) 1.1 sodium thiosulfate 4.5 sodium citrate 5.8 stearic acid 13.5 benzylamine 4.9 colamine 3 5 machine oil 22.5 caustic 4.5 water rest.

A working solution with a concentration of 0.15 wt.% Is prepared from the emulsion obtained. Adhesion to the roofing material and waterproofing are satisfactory.

Example 4

In the conditions of example 2, but when used to prepare the emulsifier of the following components in wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acid (when the mass ratio of monomers 50:50) 1.5 sodium thiosulfate 5.5 sodium citrate 6.2 stearic acid 14.2 benzylamine 5.2 colamine 4.2 machine oil 23.5 caustic 5.2 water rest.

A working solution with a concentration of 0.15 wt.% Is prepared from the emulsion obtained. Adhesion to the roofing material and waterproofing are satisfactory.

Example 5

In the conditions of example 2, but when used to prepare the emulsifier of the following components in wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acid (when the mass ratio of monomers 50:50) 1.8 sodium thiosulfate 8.5 sodium citrate 7.5 stearic acid 17.5 benzylamine 7.5 colamine 5.5 machine oil 24.5 caustic 5.5 water rest.

A working solution with a concentration of 0.2 wt.% Was prepared from the obtained emulsion. Adhesion to the roofing material and waterproofing are good.

Example 6

In the conditions of example 2, but when used to prepare the emulsifier of the following components in wt.%:

Sodium salt of a copolymer of acrylic and methacrylic acid (when the mass ratio of monomers 50:50) 2.0 sodium thiosulfate 9.0 sodium citrate 8.0 stearic acid 18.0 benzylamine 8.0 colamine 6.0 machine oil 25.0 caustic 6.0 water rest.

A working solution with a concentration of 0.2 wt.% Was prepared from the obtained emulsion.

Adhesion to the roofing material and waterproofing are good.

Claims (1)

An emulsifier for producing an oil-in-water and water-in-oil emulsion comprising a mixture of the sodium salt of a copolymer of acrylic and methacrylic acid, sodium thiosulfate, sodium citrate, stearic acid, benzylamine, colamine, machine oil, caustic and water in the following ratio of components , wt.%:
sodium salt of a copolymer of acrylic and methacrylic acid (at a molar ratio of monomers (50:50) 2-4 sodium thiosulfate 3-9 sodium citrate 4-8 stearic acid 12-18 benzylamine 3-8 colamine 2-6 machine oil 20-25 caustic 4-6 water rest