Multicomponent coatings, containing polyurea coating layers, method of producing said coatings and method of making coated articles

FIELD: chemistry.

SUBSTANCE: polyurea coating composition is obtained from a reaction mixture which contains an isocyanate functional component and an amino functional component, where the ratio of equivalents of isocyanate groups to equivalents of amino groups is greater than 1, volume ratio in the mixture of the isocyanate functional component to the amino functional component is 1:1, in which at least one polyisocyanate monomer constitutes at least 1 wt % of the isocyanate functional component, where the isocyanate functional component contains the reaction product of polyisocyanate and at least two polyols, and the amino component contains an aspartate-based amino functional reactive resin. The multicomponent composite coating contains a first polyurea layer which is deposited from the first composition, and a second polyurea layer which is deposited from the second composition, in which at least one composition, chosen from the first composition and second composition, includes a polyurea coating composition.

EFFECT: obtaining compositions which improve adhesion to earlier deposited coatings or to a substrate, characterised by low viscosity, which improves fluidity of the coating composition for a long period of time.

24 cl, 3 dwg, 1 tbl, 1 ex

 

The text descriptions are given in facsimile form.

1. Composition primecasino coatings produced from the reaction mixtures containing Izolan Funktsionalnyi component and amidofunctional component, where the ratio of equivalents of isocyanate groups and the equivalents of amine groups is greater than 1, while the volume ratio in the mixture between isocyanatobenzyl component and amidofunctional component is 1:1, in which at least one polyisocyanate monomer is at least 1 wt.% from isocyanatobenzene component, and isocyanatobenzyl component includes the reaction product of MDI and at least two polyols and amine component contains amidofunctional reactive resin based on a complex ester of aspartic acid.

2. The coating composition according to claim 1, in which the ratio of equivalents of isocyanate groups and the equivalents of amine groups is in the range from 1.01 to 1,10:1,0.

3. The coating composition according to claim 1, in which isocyanatobenzyl component includes isophorondiisocyanate.

4. The coating composition according to claim 1, in which amidofunctional component contains a primary amine and/or secondary amine.

5. The coating composition according to claim 4, in which amidofunctional component contains a secondary amine, including acrylamidophenylboronic amine and/or methacrylamidoethylene Amin.

6. The coating composition according to claim 1, in which amidofunctional component contains 20-80 wt.% the primary amine and the OS is the real number is a secondary amine.

7. The coating composition according to claim 1, in which the reaction mixture further comprises clay and optional silicon dioxide.

8. The coating composition according to claim 7 in which the amine component contains clay and optional silicon dioxide.

9. The coating composition according to claim 7, in which the clay comprises montmorillonite clay, kaolin clay, attapulgite clay and/or sepiolite clay.

10. Multi-component composite coating comprising a first primatively layer deposited from the first composition and the second primatively layer deposited from the second composition applied on at least part of the first primecasino layer, in which at least one composition selected from the first composition and the second composition comprises a coating composition according to claim 1.

11. The and coated product comprising a substrate and a composition primecasino coating according to claim 1, besieged, at least part of the substrate.

12. The product is coated in claim 11, in which the substrate is a substrate of the vehicle.

13. The product is coated in claim 11, in which the substrate includes a glass substrate.

14. The method of obtaining primecasino coating on a substrate, including:
(a) selecting isocyanatobenzene composition and amidofunctional compositions such education is, to the ratio of equivalents of isocyanate groups and the equivalents of amine groups would exceed 1, while the volumetric ratio of the applied mixture between isocyanatobenzyl component and amidofunctional component is 1:1, in which at least one polyisocyanate monomer is at least 1 wt.% from isocyanatobenzene composition, and isocyanatobenzyl component includes the reaction product of MDI and at least two polyols and amine component contains amidofunctional reactive resin based on a complex ester of aspartic acid,
(b) mixing isocyanatobenzene composition and amidofunctional composition in a volume ratio providing the reaction mixture; and
(c) applying the reaction mixture onto a substrate to obtain the substrate primecasino coverage.

15. The method according to 14, in which the mixing is carried out in the collision, and the application is carried out in the spray.

16. The method according to item 15, in which the reaction mixture, at sulphur, partially utverjdayut obtaining primecasino layer essentially does not give tack-free, put the second primatively layer on the at least partially cured primatively layer, where the partially cured of Polym chevinay layer has a resistance in relation to the second floor.

17. The method according to clause 16, in which the second layer being utverzhdennym, largely characterized by the presence of surface texture in comparison with the first floor.

18. The method according to 14, in which the substrate is a substrate of the vehicle.

19. A method of obtaining a product with the coating, including:
providing the substrate; and
the deposition of a multilayer composite coating on at least part of the substrate receiving the products with the coating, with the multi-layer composite coating includes a first primatively layer deposited from the first composition and the second primatively layer deposited from the second composition applied on at least part of the first primecasino layer, and at least one composition selected from the first composition and the second composition obtained from the reaction mixture, containing:
isocyanate component; and
amine component,
where the ratio of equivalents of isocyanate groups and the equivalents of amine groups in the reaction mixture exceeds 1, while the volumetric ratio applied to the substrate mixture between isocyanatobenzyl component and amidofunctional component is 1:1, in which at least one polyisocyanate monomer is at least 1 wt.% from from inattentional composition, and isocyanatobenzyl component includes the reaction product of MDI and at least two polyols and amine component contains amidofunctional reactive resin based on a complex ester of aspartic acid.

20. Multi-component composite coating comprising:
at least one first coating obtained from the first composition coating at least a portion of at least one main surface of the substrate, where the first coating composition contains,
at least one staple; and,
at least one film-forming resin having a functional group having reactivity with respect to the stapler;
the second composition of the coating applied in the form of at least one layer, at least a portion of the first coating with getting on top of the second coating, where the second coating composition includes primecasino composition according to claim 1; and
composition for improving adhesion, which include at least one composition selected from the first and second coating compositions, and/or applied as a separate layer, at least a portion of the first coating before applying the second composition of the coating, and where the document ASTMD1876 second floor is characterized by the adhesion resistance odlaw the tion at an angle of 90°, equal to at least 5 ft-lb (6,779 n-m).

21. Multi-component composite coating according to claim 20, in which the composition for improving adhesion, contains tertiary amine, melamine, urethaneacrylate, chelate complex of a metal, a polymer containing many moving hydrogen atoms and/or tin-containing compound.

22. Multi-component composite coating according to claim 20, in which the composition for improving adhesion, contains a tertiary amine, including 1,5-diazabicyclo[4.3.0]non-5-ene, 1,8-diazabicyclo[5.4.0]undec-7-ene and/or 1,4-diazabicyclo[2.2.2]octane.

23. Multi-component composite coating according to claim 20, in which the substrate is a substrate of the vehicle.

24. Multi-component composite coating according to item 23, in which the second composition is obtained from the reaction mixture, optionally containing one or more pigments, such that at least part of the substrate of the vehicle with the coating has a color, which essentially corresponds to the color of at least part of the conjugated body of the vehicle.



 

Same patents:

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1 cl, 6 tbl, 9 ex

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22 cl, 12 ex, 4 tbl, 8 dwg

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14 cl, 1 tbl, 4 ex

FIELD: technological processes.

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21 cl, 4 dwg

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28 cl, 10 dwg, 10 tbl, 69 ex

FIELD: food products.

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19 cl, 1 tbl, 3 ex

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36 cl, 7 dwg, 6 tbl, 9 ex

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4 cl, 2 dwg, 2 ex

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34 cl, 7 tbl, 8 ex

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15 cl, 2 tbl, 9 ex

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18 cl, 2 dwg, 1 tbl, 2 ex

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24 cl, 2 tbl, 3 dwg

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2 tbl

Composite structure // 2344041

FIELD: technological processes.

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20 cl, 6 ex,1 dwg

FIELD: chemistry.

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14 cl, 2 dwg

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2 cl, 1 dwg, 1 tbl

FIELD: rocketry; aircraft industry; method of manufacture of the multilayer product used at the cryogenic temperatures and/or in the condition of the aerodynamic heating.

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EFFECT: the invention ensures that the manufactured multilayer product is successfully working at the cryogenic temperatures and-or in the conditions of the aerodynamic heating.

4 cl, 2 dwg, 2 tbl, 2 ex

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EFFECT: elimination of iron oxides formation in micro-plasma coating of steel and cast-iron parts, enlarged assortment of parts with micro-plasma coating operating in condition of high temperature and gas corrosion.

1 dwg

The invention relates to the field of protecting the surface of a hard, highly reactive metals and alloys before hot deformation and can be used for the manufacture of composite billets for hot-rolled sheets of titanium alloys
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