Dry composition comprising a binder and a modified vegetable oil

Patent metadata

Field	Value
Publication number	US-8974595-B2
Application number	US-201113218275-A
Country	US
Kind code	B2
Filing date	Aug 25, 2011
Priority date	Feb 26, 2009
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

A dry composition including at least one binder and an oil comprising at least one compound of formula (I) below:

wherein,
Z represents an optionally substituted, linear or branched C 4 to C 28 alkyl radical or an optionally substituted, linear or branched C 4 to C 28 alkenyl radical, and
R, R′ and R″ are identical or different and separately represent an optionally substituted, linear or branched hydrogen atom, hydroxyl radical, C 1 to C 12 alkyl radical, an optionally substituted, linear or branched C 1 to C 12 heteroalkyl radical, an optionally substituted, linear or branched C 5 to C 10 cycloalkyl radical, or an optionally substituted, linear or branched C 6 to C 18 aryl radical.

First claim

What is claimed is:

1. A dry composition comprising at least one binder and a chemically modified vegetable oil, wherein the vegetable oil is chemically modified by transesterification with an alcohol, the chemically modified vegetable oil comprising at least one compound of formula (I) below:

wherein,
Z represents an optionally substituted, linear or branched C 4 to C 28 alkyl radical or an optionally substituted, linear or branched C 4 to C 28 alkenyl radical, and
R is a hydrogen atom, R′ is a hydrogen atom, and R″ is —C 3 H 7 or —CH(C 2 H 5 )—CH 2 ) 3 —CH 3 ,
wherein the at least one binder includes a hydraulic cement,
wherein the oil has a surface tension less than 60 mN/m,
wherein the oil has a dynamic viscosity lower than 0.1 Pa·s at 20° C.

2. The composition according to claim 1 , wherein, in formula (I), Z represents a C 4 to C 28 alkyl radical.

3. The composition according to claim 1 , wherein the composition is in the form of a powder.

4. The composition according to claim 1 , wherein the oil content is from 0.05 to 5% by weight of the composition.

5. The composition according to claim 1 , wherein the binder further comprises one selected from the group consisting of a lime, plaster, clay, synthetic polymer and a mixture thereof.

6. The composition according to claim 1 , wherein the binder further comprises one selected from the group consisting of a lime, synthetic polymer and a mixture thereof.

7. The composition according to claim 1 , wherein the binder content is from 5 to 95% by weight of the composition.

8. The composition according to claim 1 , further comprising at least one aggregate selected from the group consisting of a sand, stone powder, crushed brick, gravel, grit, alumina, bauxite, calcined bauxite, crushed flint, and a natural or synthetic aggregate.

9. The composition according to claim 8 , wherein the aggregate content is from 5 to 95% by weight of the composition.

10. The composition according to claim 8 , wherein the aggregate is a siliceous, limestone, sand-lime, aluminous or alumino-silicate aggregate.

11. The composition according to claim 1 , further comprising an additive selected from the group consisting of a fly ash, water-repellent or waterproofing agent, carboxylic acid salt, resin, retarding agent, accelerating agent, air-entraining agent, defoaming agent and rheology modifying agent.

12. A method for preparing the composition according to claim 1 , the method comprising:
(i) preparing a mixture comprising at least one binder and/or at least one aggregate and/or at least one additive; and
(ii) adding at least one oil comprising at least one compound of formula (I) to the mixture.

13. A method for preparing the composition according to claim 1 , the method comprising mixing at least one compound of formula (I), at least one binder, and optionally at least one agglomerate and/or at least one additive.

14. A method for preparing the composition according to claim 1 , the method comprising:
(i) preparing a first mixture comprising at least one oil comprising at least one compound of formula (I), and at least one binder and/or at least one aggregate and/or at least one additive;
(ii) preparing a second mixture comprising at least one binder and/or at least one aggregate and/or at least one additive; and
(iii) adding the first mixture to the second mixture.

15. A method for preparing a cement grout, mortar, concrete, plaster, parging and/or screed, the method comprising preparing a cement grout, mortar, concrete, plaster, parging and/or screed with the composition according to claim 1 .

16. The composition according to claim 1 , wherein the composition is suitable for use in construction, structures, concrete repair, protection of concrete and steel against inclement weather or external events, waterproofing, anchoring, bonding, sealing, adhering roof tiles or floor tiles, and facing.

17. The composition according to claim 2 , wherein the composition is in the form of a powder.

18. A method for reducing a dust emission of a dry composition, the method comprising:
adding a chemically modified vegetable oil to a dry composition comprising at least one binder, wherein the vegetable oil is chemically modified by transesterification with an alcohol,
wherein the chemically modified vegetable oil comprises at least one compound of formula (I) below:

wherein,
Z represents an optionally substituted, linear or branched C 4 to C 28 alkyl radical or an optionally substituted, linear or branched C 4 to C 28 alkenyl radical, and
R is a hydrogen atom, R′ is a hydrogen atom, and R″ is —C 3 H 7 or —CH(C 2 H 5 )—CH 2 ) 3 —CH 3 ,
wherein the at least one binder includes a hydraulic cement,
wherein the oil has a surface tension less than 60 mN/m,
wherein the oil has a dynamic viscosity lower than 0.1 Pa·s at 20° C.,
wherein the addition of the oil to the dry composition is effective to reduce a dust emission of the dry composition.

Assignees

• Guyot Christophe
• Guillot Laurent
• Sika Technology Ag

Inventors

• Guyot Christophe
• Guillot Laurent

Classifications

• C04B28/02

  containing hydraulic cements other than calcium sulfates · CPC title

• C04B2103/0075

  Anti-dusting agents · CPC title

• C04B26/02 Primary

  Macromolecular compounds · CPC title

• C04B24/08

  Fats; Fatty oils; Ester type waxes; Higher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl group; Oxidised oils or fats · CPC title

• C04B14/28

  of calcium · CPC title