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INVENTION
Russian Federation Patent RU2238290

PAINT

Name of the inventor: Kemalov RA (RU); Kemalov AF (RU); Ganiev TF (RU); Diyarov IN (RU); Nuriyev IM (RU); Fakhrutdinov RZ
The name of the patentee: Kemalov Ruslan Alimovich (RU); Kemalov Alim Feyzrahmanovich (RU); Ganiev Tamilla Fathievna (RU); Diyarov Irik Nurmuhametovich (RU); Nuriyev Ildar Muhamatnurovich (RU); Fakhrutdinov Revo Ziganshinovich
Address for correspondence: 420140, Kazan, st. Chishmyale, 13, kv.86, AF Kemalova
Starting date of the patent: 2003.05.05

The invention relates to a paint materials, especially for paints based on bituminous materials, and may find application in areas where materials are needed with improved moisture resistance, resistance to cracking and peeling. The objective is to create a paint with improved properties - less drying time, high values ​​of brightness and water resistance, corrosion resistance. The problem is solved by the ink composition in wt%: bitumen - 26-29;. 5-9 petroleum resin; elemental sulfur - 0.5-3.5; dicyclopentadiene or polypropylene, or ethylene-vinyl acetate copolymer or thermoplastic divinilstirolny - 0.5-4.0; solvent - rest.

DESCRIPTION OF THE INVENTION

The invention relates to the manufacture of paints, in particular paints based on bituminous materials, and can be used in various fields of national economy, which require materials with increased moisture resistance, resistance to flaking and cracking.

Known paint (OST 6-10-426-79 "Paint BT-177." The technical requirements), including bitumen, film-forming component (oxidized vegetable oil), pigment (aluminum powder) and a solvent. Paint characterized insufficiently high water resistance and weathering performance, leading to coating delamination after prolonged exposure to water (more than 24 hours).

The closest to the invention is a paint, comprising bitumen, petroleum resin, filler, pigment - Steel powder MP-1 (waste dedusting of metallurgical production) and the solvent in the following ratio, wt%: bitumen - 5-20, petroleum resin - 9. 28, filler - 8-15, pigment - 8-20, the solvent - the rest (RF patent №2124032, 6 C 09 D 195/00 // (C 09 D 195/00, 157: 02, 1998).

The disadvantages of this ink are relatively long drying time, low value of gloss and insufficient corrosion resistance.

The object of the invention is to provide a paint with improved properties, namely, with less drying time, higher gloss values ​​and water resistance, but also high corrosion resistance, while ensuring high values ​​of other physical and mechanical properties.

The problem is solved developing ink comprising bitumen, petroleum resin, a filler and an organic solvent, characterized in that it additionally comprises elemental sulfur and a filler or polypropylene, or dicyclopentadiene or a copolymer of ethylene with vinyl acetate or divinilstirolny TPE with the following ratio of components, . wt%:

Bitumen 26-29

Petroleum resin 5-9

Elemental sulfur 0.5-3.5

Polypropylene or dicyclopentadiene;

or a copolymer of ethylene with vinyl acetate,

or thermoplastic divinilstirolny 0.5-4.0

Other solvent

Bitumen is used as a refractory bitumen with a softening point 110-125ºS.

The use or toluene (GOST 5789-78), solvent or oil for paint industry (GOST 10214-78), or white spirit (GOST 3134-78) as a solvent.

Petroleum resin (NPC) - TU 2451-089-05766801-99 (softening temperature below 85-100ºS mass fraction of volatile substances - no more than 0.3-1.0%, the solubility in a double volume of xylene and white spirit, in the ratio 1: 1 - complete).

Elemental sulfur gas according to GOST 126-79.

ethylene-vinyl acetate copolymers (EVA) with a vinyl acetate content of 35-50%, is prepared by solution polymerization at 10-50 MPa and 60-80ºS (TU 6-11-00203335-68-84).

Divinilstirolny thermoplastic DST-30 TU 38.103267-88.

Dicyclopentadiene (DCPD) at TU 2416-024-05766801-94 (content by weight%: DCPD - endo - not less than 92,0-94,0; exo-DCPD - not more than 0.8, benzene - not more than 0. 2, water - less than 0,018, polymers and resins produced - not more than 0.5).

Polypropylene (PP) for MRTU-6-0,5-1105-67.

Example of preparation of paint.

PP or DCPD, or EVA, or together with DST NPC and sulfur dissolved in half of the calculated amount of the solvent (solvent, toluene, mineral spirit), and then the solution at a temperature 80-100ºS administered sequentially with continuous mixing the bitumen and the other half of the solvent. Stirred until the resulting composition fineness 30 .mu.m.

Example 1 0.5 g of PP, PS 9 g and 0.5 g of sulfur dissolved in 30.5 g of solvent and then introduced into the solution under continuous stirring at 80 ° C successively 29 g of bitumen and 30.5 g solvent. Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 29 PS - 9, sulfur - 0.5 PP - 0.5, solvent - 61..

Example 2 0.5 g of DCPD, 9 g of PS, 0.5 g of sulfur dissolved in 30.5 g of solvent and then introduced into the solution under continuous stirring at 100 ° C successively 29 g of bitumen and 30.5 g solvent. Stirred until the resulting composition fineness 30 .mu.m. paint composition, wt%: bitumen - 29, PS - 9, sulfur - 0.5 DCPD - 0.5, solvent - 61..

Example 3 0.5 g of DST, 9 g of PS, 0.5 g of sulfur dissolved in 30.5 g of solvent and then introduced into the solution under continuous stirring at 90 ° C successively 29 g of bitumen and 30.5 g solvent. Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 29 PS - 9, Sulfur - 0.5, DST - 0.5, solvent - 61..

Example 4 0.5 g of EVA, PS 9 g, 0.5 g of sulfur dissolved in 30.5 g of solvent and then introduced into the solution under continuous stirring at 80 ° C successively 29 g of bitumen and 30.5 g solvent. Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 29 PS - 9, Sulfur - 0.5, EVA - 0.5, solvent - 61..

Example 5 2.0 g of PP, 7.0 g of PS, 2.0 g of sulfur dissolved in 31.0 g of solvent and then introduced into the solution under continuous stirring at 80 ° C sequentially 27.0 g of bitumen and 31.0 g solvent . Stirred until the resulting composition fineness 30 .mu.m. Composition of paint: Weight% bitumen - 27.0, NPS - 7.0, sulfur - 2.0 PP - 2.0, solvent - 62.0..

Example 6 2.0 g of the DST, 7.0 g of PS, 2.0 g of sulfur dissolved in 31.0 g of solvent and then introduced into the solution under continuous stirring at 90 ° C sequentially 27.0 g of bitumen and 31.0 g solvent . Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 27.0, NPS - 7.0, sulfur - 2.0 DST - 2,0, solvent - 62.0..

Example 7 2.0 g of EVA, PS, 7.0 g, 2.0 g of sulfur dissolved in 31.0 g of solvent and then introduced into the solution under continuous stirring at 100C and successively 27.0 g 31.0 g solvent. Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 27.0, NPS - 7.0, sulfur - 2.0 EVA - 2,0, solvent - 62.0..

Example 8 2.0 g of DCPD, 7.0 g of PS, 2.0 g of sulfur dissolved in 31.0 g of solvent and then introduced into the solution under continuous stirring at 90 ° C sequentially 27.0 g of bitumen and 31.0 g solvent . Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 27.0, NPS - 7.0, sulfur - 2.0 DCPD - 2,0, solvent - 62.0..

Example 9 4.0 g of PP, 5.0 g of PS, 3.5 g of sulfur dissolved in 30.75 g solvent, and then introduced into the solution under continuous stirring at 80 ° C sequentially 26.0 g of bitumen and 30.75 g solvent . Stirred until the resulting composition fineness 30 .mu.m. Composition of paint: Weight% bitumen - 26.0, NPS - 5.0, sulfur - 3.5 PP - 4.0, solvent - 61.5..

Example 10 4.0 g of DST, 5.0 g of PS, 3.5 g of sulfur dissolved in 30.75 g solvent, and then introduced into the solution under continuous stirring at 80 ° C sequentially 26.0 g of bitumen and 30.75 g solvent . Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 26.0, NPS - 5.0, sulfur - 3.5 DST - 4.0, solvent - 61.5..

Example 11 EVA 4.0 g, 5.0 g of PS, 3.5 g of sulfur dissolved in 30.75 g solvent, and then introduced into the solution under continuous stirring at 80 ° C sequentially 26.0 g of bitumen and 30.75 g solvent . Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 26.0, NPS - 5.0, sulfur - 3.5 EVA - solvent 4.0 - 61.5..

Example 12 4.0 g of DCPD, 5.0 g of PS, 3.5 g of sulfur dissolved in 30.75 g solvent, and then introduced into the solution under continuous stirring at 100C sequentially 26.0 g of bitumen and 30.75 g solvent . Stirred until the resulting composition fineness 30 .mu.m. paint composition, in weight%: bitumen - 26.0, NPS - 5.0, sulfur - 3.5 DCPD - 4.0, solvent - 61.5..

To determine the properties of the coatings studied samples of paint is applied in layers to the prepared metal surface paint sprayer or brush, and define the following properties:

- Drying time at a temperature of 20 + 2ºC to grade 3 (GOST 19007-73);

- Film adhesion, points (GOST 15140-78);

- Film pendulum hardness M-3, cond. u (GOST 5233-77);

- Flexural elastic film mm (GOST 6806-73);

- Film impact strength, see (GOST 4765-73);

- Water resistance and weather resistance by the method of accelerated tests (GOST 9042-75);

- Shine measured on the FB-2 device according to GOST 896-69;

- Corrosion resistance according to GOST 9403-80.

Due to the fact that the prototype is no data on the values ​​of brightness and corrosion resistance, that were prepared selectively three samples according to the formulation of the prototype (characterized by the highest values ​​of other indicators), and assigned to them the values ​​of brightness and corrosion resistance.

As the table shows, the proposed composition of the paint reduces the time it dries (up to 2.0-3.0 hours vs. 4-8 hours for the prototype), increases the gloss value (up to 66-75% compared to 23-28% for the prototype), increases corrosion resistance (up to 7-9 hours against prototype for 2.5-3.0 h), while providing high values ​​of other parameters (adhesion, film elasticity in bending, impact strength, film hardness, water resistance and weather resistance. in addition, the claimed paint is characterized by high stability, it does not separate upon storage does not form sag when painting vertical surfaces.

CLAIM

Paint comprising bitumen, petroleum resin, a filler and an organic solvent, characterized in that it additionally comprises elemental sulfur and a filler or polypropylene, or dicyclopentadiene, or ethylene vinyl acetate copolymer or butadiene-styrene thermoplastic elastomer with the following ratio of components, wt. %:

Bitumen 26-29

Petroleum resin 5-9

Elemental sulfur 0.5-3.5

Polypropylene or dicyclopentadiene;

or a copolymer of ethylene with vinyl acetate,

or butadiene-styrene thermoplastic 0.5-4.0

Other solvent

print version
Publication date 18.01.2007gg