Combination of ternary binders with aqueous epoxy resin system

Patent metadata

Field	Value
Publication number	US-10059627-B2
Application number	US-201414905656-A
Country	US
Kind code	B2
Filing date	Jul 14, 2014
Priority date	Jul 16, 2013
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A multi-component composition is described that includes: A) a binder component (A) including at least one epoxy resin, B) a hardener component (B) including at least one amine compound as an amine hardener, and C) a solid component (C) including a hydraulic inorganic binder, wherein the hydraulic inorganic binder is a ternary binder composed of aluminous cement, calcium sulfate, and optionally Portland cement, wherein the solid component (C) includes 2 to 30 wt % aluminous cement, 1 to 16 wt % calcium sulfate, and 0 to 20 wt % Portland cement. The multi-component composition is suitable in particular as a self-leveling floor-leveling compound for a floor covering or as a mortar.

First claim

The invention claimed is:

1. A multicomponent composition comprising:
A) a binder component (A) comprising at least one epoxy resin of formula (I), wherein R′ and R″ independently of one another are each a hydrogen atom or a methyl group, and s is an average value of from 0 to less than 2,

B) a hardener component (B) comprising at least one amine compound as an amine hardener, and
C) a solid component (C) comprising a hydraulic inorganic binder,

wherein the hydraulic inorganic binder is a ternary binder comprised of high-alumina cement, calcium sulfate, and optionally Portland cement, and wherein the solid component (C) comprises 2 to 30 wt % of high-alumina cement, 1 to 16 wt % of calcium sulfate, and 0 to 20 wt % of Portland cement.

2. The multicomponent composition as claimed in claim 1 , wherein the total amount of epoxy resin and amine hardener in the multicomponent composition, based on the total weight of the multicomponent composition, is not more than 4 wt %.

3. The multicomponent composition as claimed in claim 1 , wherein the ternary binder comprises Portland cement, and the solid component (C) comprises 5 to 20 wt % of high-alumina cement, 3 to 13 wt % of calcium sulfate, and 3 to 10 wt % of Portland cement.

4. The multicomponent composition as claimed in claim 1 , wherein the calcium sulfate is selected from the group consisting of anhydrite, dihydrate, hemihydrate, or a mixture thereof.

5. The multicomponent composition as claimed in claim 1 , wherein the binder component (A) and/or the hardener component (B) comprise water.

6. The multicomponent composition as claimed in claim 1 , wherein the solid component (C) comprises one or more fillers, and optionally one or more additives.

7. The multicomponent composition as claimed in claim 1 , wherein the total amount of epoxy resin and amine hardener in the multicomponent composition, based on the total weight of the multicomponent composition, is not less than 0.1 wt %.

8. The multicomponent composition as claimed in claim 1 , wherein the fraction of the ternary binder in the solid component (C) is in the range of 3 to 40 wt %.

9. The multicomponent composition as claimed in claim 1 , wherein the at least one epoxy resin comprises at least one epoxy resin and a reactive diluent.

10. The multicomponent composition as claimed in claim 1 , wherein the at least one amine compound is a polyamine, a polyaminoamide, a polyamine-polyepoxide adduct, a polyaminoamide-polyepoxide adduct, or a mixture of at least two of these compounds.

11. The multicomponent composition as claimed in claim 1 , wherein the multicomponent composition comprises a polymeric binder which is solid at 23° C.

12. A method for coating, joining, sealing, or grouting components with a multicomponent composition as claimed in claim 1 , the method comprising the following method steps:
a) mixing the binder component (A) and the hardener component (B),
b) adding the solid component (C) to the mixture obtained in step a), with stirring, to give a binder mixture,
c) processing the resulting binder mixture by
c1) applying the binder mixture to the surface of one or more components for coating,
c2) applying the binder mixture to the surface of one or more components and placing one or more further components onto the applied binder mixture in order to join the components, or
c3) introducing the binder mixture into the space between two or more components for sealing or grouting,

d) optionally smoothing and/or deaerating the applied or introduced binder mixture, and
e) curing the binder mixture,
wherein water is present in the binder component (A) and/or in the hardener component (B) and/or is added as a separate component before or during the addition of the solid component (C).

13. The method as claimed in claim 12 , wherein in step a) one or more additional liquid components are admixed and/or in step b) one or more additional solid components are admixed.

14. A product comprising one or more components coated, joined, sealed, or grouted with a cured binder mixture, obtained by a method as claimed in claim 12 .

15. A coating composition comprising the multicomponent composition as claimed in claim 1 .

16. The multicomponent composition as claimed in claim 2 , wherein total amount of epoxy resin and amine hardener is not more than 3 wt %.

17. The multicomponent composition as claimed in claim 2 , wherein total amount of epoxy resin and amine hardener is not more than 2 wt %.

18. The multicomponent composition as claimed in claim 4 , wherein the calcium sulfate is the hemihydrate.

19. The multicomponent composition as claimed in claim 5 , wherein the amount of water present in compounds (A) and/or (B) is sufficient to cure the hydraulic inorganic binder.

20. The multicomponent composition as claimed in claim 6 , wherein at least one of the one or more fillers is sand.

21. The multicomponent composition as claimed in claim 6 , wherein the filler content in component (C) is at least 36 wt %.

22. The multicomponent composition as claimed in claim 6 , wherein the filler content in component (C) is at least 57 wt %.

23. The multicomponent composition as claimed in claim 11 , wherein the polymeric binder is an ethylene-vinyl acetate copolymer optionally comprising one or further comonomers.

24. A self-leveling flooring compound for a floor covering, the compound comprising the multicomponent composition as claimed in claim 1 .

25. A mortar compound comprising the multicomponent composition as claimed in claim 1 .

Assignees

• Sika Tech Ag

Inventors

• Würmli Fabio
• Moser Thomas
• Roth Kurt
• Hesselbarth Daniela

Classifications

• C04B7/02

  Portland cement · CPC title

• C04B7/32

  Aluminous cements · CPC title

• C04B24/2623

  Polyvinylalcohols; Polyvinylacetates · CPC title

• C04B28/06

  Aluminous cements (monolithic refractories or refractory mortars C04B35/66) · CPC title

• C04B2111/62

  Self-levelling compositions · CPC title