SU1493645A1 - Coating composition - Google Patents

Abstract

The invention relates to epoxy compositions for applying protective anti-corrosion coatings used in enterprises producing household chemical goods. The aim of the invention is to improve ductility and processability. The coating composition comprises (parts by weight) epoxy resin 23.0-27.0

polyethylenepolyamine 2.6-3.1

dibutyl phthalate 2.7-5.6

barium 31.2-45.3

titanium dioxide 2.4-4.9

iron minium 0.4-0.45

Kaolin 17.0-23.4

aerosil 1,2-1,6

polycondensation product of cyclohexylidenecyclohexanone and cyclic carboxylic acids in an alkaline medium with a nominal viscosity at 20 ° C not less than 150 with 2.5-5.7. The resulting protective composition is characterized by a drying time at 20 ± 2 ° C for 12 hours, a durability of the coating at an impact of 45-50 cm, an elasticity of the filler layer at a bend of 10 mm. 4 tab.

Description

The invention relates to epoxy compositions for applying protective anti-corrosion coatings used in enterprises producing household chemical goods.

The purpose of the invention is to improve ductility and processability.

The proposed coating composition is two-component, consisting of filler and curing

pastes.

The compositions of the coating compositions are shown in Table. one.

Putty paste is prepared by mixing the components in a Z-blended mixer. Stirring is carried out at 20-30 ° C for 2 hours.

Mixed until a homogeneous composition of the paste is Packed in a sealed one,

RU.

The compositions of putty paste are given in table. 2

The curing paste is also prepared by mixing the ingredients listed in Table. 3, in a mixer with mixing bodies. The resulting paste is packaged in an airtight container. Before using putty, the prepared pastes (pulping and hardening) are mixed until a homogeneous composition (for convenience, pigment is added to the curing paste). The resulting composition is used on the day of application as a leveling agent.

four:

WITH.

CO O5 4

ate

metal and other coatings | surface. Apply the composition manually or mechanically.

The prepared samples of the coating composition j are subjected to tests to determine the flowability, drying time, strength of the coating upon impact, and the elasticity of the putty layer during bending. The results of tests 10 are presented in table. four.,

Formula for invention

A coating composition comprising an epoxy resin, polyethylene polyamine, dibutyl phthalate and a mineral filler,

different with

the fact that, in order to improve the plasticity and processability, it additionally contains the polycondensation product of cyclohexylidenecyclohexanone and

cyclic esters of carboxylic acids in an alkaline medium with a conditional viscosity at not less than 150 s, and as a filler barium, titanium dioxide, red iron, kaolin and aerosla in the following ratio of components, wt.

Epoxy resin 23.0-27.0

Polyethylenepolyamine2,6-3,1

Libutyl phthalate2,7-5,6

Barium 31.2-45.3

Titanium dioxide2.4-4.9

Iron Surik0,4-0,45

Kaolin17.0-23.4

AerosipI, 2-1,6

The product of polycondensation of cyclohexylidenecyclohexa with anone and cyclic carboxylic acid esters of 2.5-5.7

Table 1

Epoxy resin Polyethylenepolyamine Dibutyl phthalate Barium

Titanium dioxide Iron Minium Kaolin Aerosil

The condensation product of cyclohexylidenecyclohexanone and cyclic carboxylic esters

3.0 24.5

4.9

9.8

2.4

9.0 1.2

3.0

34.7

3.8

11.8 1.5

27.0

0.9

27.4

4.9

14.7 1.6

0.9

2.3

3.7

Epoxy resin

Polyethylenepolyamine

Dibutyl phthalate

Barium

Titanium dioxide.

Iron Minium

Kaolin

Aerosil

The condensation product of cyclohexylidecyclohexanone and

carboxylic acid cyclic esters

Stack composition deposited on a vertical surface of a metallic substrate

Stacking composition when applied to the ceiling surface

Drying time at 20t2 ° C, h, not more

Coating strength at impact, cm, not less

Bending layer elasticity, mm, not more than

Does not trickle down when not stacked; no stack stacks;

Flows down

24 40

15

Not a stack - Not a stack - Not a stack

et et kaet

12

50

ten

12

45

ten

12

45

ten

Compiled by G. Sanin Editor A. Ogar Tehred M. Didyk Proofreader V, Bugrenkova

Order 4062/27

Circulation 411

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5

1.6

2.0

2.0

Table 4

Not a stack - Not a stack - Not a stack

et et kaet

12

12

12

50

45

45

ten

ten

ten

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Claims (1)

Claim Coating composition comprising 15 epoxy resin, polyethylene polyamine, dibutyl phthalate and mineral filler, characterized in that, in order to improve ductility and processability, it additionally contains a polycondensation product of cyclohexylidene cyclohexanone and cyclic carboxylic acid esters in alkaline medium with conditional viscosity at 20 ^u С for at least 150 s, and as filler - barium, titanium dioxide, iron minium, kaolin and aerosil with the following ratio of components, ma.ch .: Epoxy resin 23.0-27.0 Full Ethylene Polamine 2.6-3.1 Dibutyl phthalate 2.7-5.6 Barium 31.2-45.3 Titanium dioxide 2.4-4.9 Iron Meerk 0.4-0.45 Kaolin 17.0-23.4 Aerosip 1.2-1.6 Polycondens product cyclohexation Leidencyclohex with ano- on and cyclic carbonic esters acids 2.5-5.7 Table 1 Component Content , parts by weight, in the composition ' one ² I 3 Epoxy resin 23.0 24.5 27.0 Polyethylene polyamine 2.6 2.7 3, 1 Dibutyl phthalate 5,6 3,7 2.7 Barium 45.3 39.3 31,2 Titanium dioxide 2,4 3.8 4.9 Iron Meerk 0.4 0.4 0.45 Kaolin 17.0 20.3 23,4 Aerosil 1,2 1,5 1,6 The condensation product of cyclohex or dedecyclohexanone and cyclic ethers carboxylic acids • 2,5 4.3 5.7 Table and c. 2 Component Content, parts by weight composed one ² 3 Epoxy resin 23.0 24.5 27.0 Polyethylene polyamine - - - Dibutyl phthalate 4.9 3.0 0.9 Barium 39.8 34.7 27.4 Titanium dioxide 2,4 3.8 4.9 Iron Meerk - - - Kaolin 9.0 11.8 14.7 Aerosip 1,2 1,5 1,6 The condensation product is cyclo- hexylidenecyclohexanone and cyclic esters of carbo- new acids 0.9 2,3 3,7 Component Epoxy resin Polyethylene Polyamine Dibutyl Phthalate Barium Titanium dioxide Iron Meerk Kaolin Aerosil The condensation product of cyclohexylidenecyclohexanone and cyclic esters of carboxylic acids Table.a 3 Content, May “* • hours ”in the composition one eleven eleven Midrange | one eleven 1 ³ _______ 2.6 2.7 3,1 0.7 0.7 1.8 5,6 4.6 3.8 0.4 0.4 0.45 8.0 8.5 8.47 1,6 2.0 2.0 Table 4 Indicator Composition Famous Proposed one 1 ' ² 3 The flow rate of the composition, Does not drain when Not stack - Not a stack - Not ste plotted on a vertical adding em em repents calcareous surface acetone metal substrate Composition Flow Is flowing down Not stack - Not a stack - Not ste when applied to sweat ef em repents surface Drying time at 20t2 ° C, h, no more 24 12 12 12 Coating Strength shock, cm, not less 40 fifty 45 45 Elasticity putty layer during bending, mm, no more fifteen 10 10 10