RU2409596C1 - Oil-resin composition - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: described is an oil-resin composition for producing drying oils, lacquer and paints, including oxidised sunflower oil, synthetic resin and an organic solvent, characterised by that the synthetic resin used is alkylmethacrylate-modified polymeric petroleum resin which is obtained through polymerisation of unsaturated compounds of fractions of liquid products of pyrolysis of straight-run gasoline with boiling range of 130-190°C and alkylmethacrylate (alkyl, methyl, butyl, hexyl), with the following ratio of components (wt %): oxidised sunflower oil 10-20; modified polymeric petroleum resin 30-40, solvent 50.

EFFECT: low consumption of plant oil, wider raw material base and range of high quality paint materials, preparation of the oil-resin composition under mild conditions.

1 cl, 3 tbl, 1 ex

Description

The invention relates to the field of production of paints and varnishes, in particular to the production of binder paints and varnishes such as drying oils.

Known drying oils of the type "Oxol" obtained by oxidation of vegetable oil followed by the introduction of oil driers and dilution in organic solvents [Drying oil "Oxol". Technical conditions GOST 190-78]. In paints and varnishes synthetic binders for vegetable oils, such as petroleum polymer resins (NPS), are increasingly being used as binders.

Known film-forming obtained by fusion of oxypolymerized semi-drying vegetable oil (30%) and petroleum resin (70%), followed by cooling and the introduction of a solvent and desiccant [USSR AS No. 802 343. M. Cl ³ C09F 7/06. Publ. 02/07/81, Bull No. 5]. The disadvantage of this method is the need for the process at high temperature (260 ° C).

Also known is a method of producing a film-forming by combining vegetable oils (oxidized oil can be used) with NPS in the presence of peroxide type initiators. The combination is carried out in an organic solvent at 70-150 ° C for 1.5-3 hours, then drier and chloroparaffin are introduced [USSR AS No. 704976. M. Cl ² C09F 7/06. Publ. 12/25/79, Bull No. 47]. The synthesis is carried out under relatively mild conditions, but requires the use of explosive peroxide initiators and does not allow to obtain light-colored film-forming.

The closest in technical essence to the proposed one is a film-forming composition obtained by combining oxidized sunflower oil, NF-1 desiccant (lead-manganese naphthenate) with a synthetic resin, for example, oil-polymer resin [USSR AS No. 910 709. M. Cl ³ C09D 3/733 C09D 3/28. Publ. 03/07/82, Bull. No. 9]. Its disadvantage is the need to use a modifying additive, including rosin glycerin ester, zinc or calcium resinate, and allowing to solve the problem of combining oil-polymer resins with oils by cold mixing, as well as the need to use toxic lead-manganese desiccants.

The objective of the invention is to reduce the consumption of edible vegetable oils, expanding the raw material base and the range of paints and varnishes of improved quality, carrying out the process of obtaining an oil-resin composition in mild conditions.

The problem is solved by combining oxidized sunflower oil (OPM) with a modified alkyl methacrylate oil-polymer resin and obtaining at room temperature an oil-resin composition in the following ratio of components (wt.%):

oxidized sunflower oil 10-20 modified petroleum resin 30-40 solvent fifty

The oxidized sunflower oil was obtained by oxidizing sunflower oil in the presence of triethylaluminum at a temperature of 130 ° C to a viscosity of 1600 s according to VZ-4 at 20 ° C [RU 2229492 C1, IPC ⁷ C09F 7/02. Publ. 05/27/04, Bull. No. 15].

The oil-polymer resin modified with alkyl methacrylate was obtained by polymerization of unsaturated compounds of the fraction of liquid products of straight-run gasoline pyrolysis with boiling ranges from 130 to 190 ° C and alkyl methacrylate (alkyl: methyl, butyl, hexyl) taken in an amount of 5 to 20%, titanium tetrachloride catalytic systems - organoaluminum compound (diethylaluminium chloride, triethylaluminum, triisobutylaluminum) at molar ratios of 1: (0.1-3) and TiCl ₄ concentration in the catalytic complex of 1-2%, at a temperature of 60-80 ° C, etc. the duration of the reaction is 60-120 minutes, followed by deactivation of the catalytic complex with propylene oxide. The reaction products of the catalytic complex with propylene oxide remain in the composition of the obtained resin [Decision on the grant of a patent on application 2008 119 764 dated 03/12/09].

Aromatic hydrocarbons, solvent, white spirit, gasoline are used as a solvent.

The use of a modified petroleum polymer resin to obtain an oil-resin composition allows you to:

1) reduce the consumption of vegetable oils to obtain film-forming components in the paint industry;

2) carry out the process at room temperature;

3) eliminate the use of toxic driers that give the composition a dark color;

4) eliminate the use of additional modifying additives,

5) expand the raw material base and the range of paints and varnishes.

Table 1 shows the composition and properties of oil-resin compositions, including oil-polymer resin modified with 10% methyl methacrylate (NPS _10MMA ) and 20% methyl methacrylate (NPS _20MMA ).

Table 2 presents the composition and properties of oil-resin compositions, including oil-polymer resin, modified with 10% butyl methacrylate (NPS _10BA ) and 20% butyl methacrylate (NPS _20BA ).

Table 3 presents the composition and properties of oil-resin compositions, including oil-polymer resin modified with 10% hexyl methacrylate (NPS _10GMA ) and 20% methyl methacrylate (NPS _20GMA ).

Example (table 1, sample 1)

20 g of a 50% solution of oxidized sunflower oil in the solvent and 30 g of a 50% solution of the modified petroleum polymer resin (NPS _10MMA ) in the solvent are mixed at room temperature (20 ... 25 ° C) for 3 ... 5 minutes. The color of the resulting solution is evaluated, then the films are watered and the drying time of the coating, adhesion, flexural strength and impact strength are determined. Additionally, desiccant is not introduced into the composition.

The color of the resulting solution of 280 mg of I _2/100 ml. Drying time to st.3 coating is 24 hours; bending strength - 1 mm; impact strength - 10 cm; adhesion is estimated at 1 point.

All of the following syntheses were performed according to a similar procedure. The color of the resulting solutions and the properties of the coatings are presented in table.1-3.

Thus, the use of a modified oil-polymer resin modified with alkyl methacrylate (alkyl: methyl, butyl, hexyl) as a synthetic resin makes it possible to obtain an oil-resin composition at room temperature that can be used in the paint and varnish industry.

Claims (1)

An oil-resin composition for producing drying oil, varnishes and paints, including oxidized sunflower oil, a synthetic resin and an organic solvent, characterized in that as a synthetic resin, an oil-polymer resin modified by alkyl methacrylate is used, obtained by polymerization of unsaturated fractions of liquid pyrolysis products of straight-run gasoline with boiling limits from 130 to 190 ° C and alkyl methacrylate (alkyl: methyl, butyl, hexyl), in the following ratio, wt.%:
oxidized sunflower oil 10 ÷ 20 modified petroleum resin 30 ÷ 40 solvent fifty