Composition for rheology control

Patent metadata

Field	Value
Publication number	US-10377906-B2
Application number	US-201515304028-A
Country	US
Kind code	B2
Filing date	Feb 11, 2015
Priority date	Apr 15, 2014
Publication date	Aug 13, 2019
Grant date	Aug 13, 2019

Abstract

The invention relates to a rheology control agent containing i) 15-95% by weight of an amide compound (A), ii) 5-75% by weight of a urea compound (B), iii) 0-50% by weight of an ionogenic compound (C) and iv) 0-35% weight of an organic solvent (D).

First claim

The invention claimed is:

1. A composition comprising
i) 15-95 wt % of an amide compound (A),
ii) 5-75 wt % of a urea compound (B),
iii) 0-50 wt % of an ionogenic compound (C), and
iv) 0-35 wt % of an organic solvent (D),
where the amide compound (A) has a molar mass of 70 to 600 g/mol, the amide compound (A) contains not more than one amide group with hydrogen bonded to its nitrogen atom, the amide compound (A) has no urea group, no phosphorus, no silicon, and no halogen, and the amide compound (A) is present in accordance with the general formula (I),

where
Xx is identical or different and is represented by an amide group C(═O)—N which is linked to Rz, Ra, and Rb in accordance with one of the general formulae RzC(═O)—NRaRb (Xx1), RaC(═O)—NRzRb (Xx2), and RbC(═O)—NRzRa (Xx3)
Xy is identical or different and is represented by an amide group C(═O)—N which is linked to Rz, Rc, and Rd in accordance with one of the general formulae RzC(═O)—NRcRd (Xy1), RcC(═O)—NRzRd (Xy2), and RdC(═O)—NRzRc (Xy3)
Rz in each case is identical or different and is represented by a branched or unbranched, saturated or unsaturated hydrocarbon radical which has 1 to 32 carbon atoms and which as heteroatom-containing groups may optionally contain exclusively amino groups, amide groups, or mixtures thereof
Ra, Rb, Rc, and Rd, in each case identically or differently and in each case independently of one another, are represented by hydrogen or a branched or unbranched, saturated or unsaturated organic radical containing 1 to 16 carbon atoms, with the proviso that
Ra, Rb, Re, and Rd in their entirety have at least four carbon atoms,
not more than one of the radicals from the group of Ra, Rb, Rc, and Rd is present in the form of hydrogen,
at least one of i) Ra and Rb, together with the CO—N moiety joining Ra to Rb or ii) Re and Rd, together with the CO—N moiety joining Rc to Rd, may optionally together, in accordance with the general formula (α-1), form a cyclic structure having 4 to 10 ring atoms, and

at least one of iii) Ra and Rb, together with the N atom joining Ra to Rb or iv) Rc and Rd, together with the N atom joining Rc to Rd, may optionally together, in accordance with the general formula (β-1), form a cyclic structure having 4 to 7 ring atoms, or

Rb and Rc together with the N atom bonded to each of Rb and Rc, and also with the radical Rz, may optionally, in accordance with the general formula (γ-1), form a cyclic structure having 5 to 7 ring atoms

Ra, Rb, Re, Rd, and Rz in their entirety have not more than 36 carbon atoms and also not more than 8 heteroatoms from the group of N and O,
the urea compound (B) has a molecular weight of at least 350 g/mol and at least one urea group,
the ionogenic compound (C) contains a cationic component and an anionic component and is different from the amide compound (A) and from the urea compound (B), and
the organic solvent (D) contains no urea group and no ionic group and also has not more than two heteroatoms selected from the group consisting of nitrogen and oxygen.

2. The composition as claimed in claim 1 , comprising
i) 30-90 wt % of the amide compound (A),
ii) 8-55 wt % of the urea compound (B),
iii) 0-15 wt % of the ionogenic compound (C), and
iv) 2-25 wt % of the organic solvent (D).

3. The composition as claimed in claim 1 ,
characterized in that 50-100 wt % of the amide compound (A) has no amide group with hydrogen bonded to its nitrogen atom.

4. The composition as claimed in claim 3 , characterized in that said 50-100 wt % of the amide compound (A) is present in accordance with a general formula (I) in which none of the radicals from the group of Ra, Rb, Rc, and Rd is represented by hydrogen.

5. The composition as claimed in claim 1 , characterized in that 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ia)

6. The composition as claimed in claim 1 , characterized in that 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ia), where at least one of i) Ra and Rb, together with the N atom joining Ra to Rb or ii) Rc and Rd, together with the N atom joining Rc to Rd, in accordance with the general formula (β-1), together form a branched or unbranched, saturated or unsaturated cyclic structure having 4 to 7 ring atoms which has not more than two heteroatoms from the group consisting of O and N.

7. The composition as claimed in claim 1 , characterized in that 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ia), where i) Ra, Rb, Rc or Rd, or ii) Ra, Rb, Rc and Rd, in each case are not present in cyclic structures.

8. The composition as claimed in claim 1 , characterized in that the general formula (I) for 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ib)

9. The composition as claimed in claim 1 , characterized in that the general formula (I) for 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ib), where Rb and Rc together with the N atom bonded to each of Rb and Rc, and also with the radical Rz, in accordance with the general formula (γ-1), form a branched or unbranched, saturated or unsaturated cyclic structure having 5 to 7 ring atoms which has not more than two heteroatoms from the group consisting of O and N.

10. The composition as claimed in claim 1 , characterized in that the general formula (I) for 50-100 wt % of the amide compound (A) is present in accordance with the general formula (Ib), where at least one of i) Ra and Rb, together with the CO—N moiety joining Ra to Rb or ii) Rc and Rd, together with the CO—N moiety joining Rc to Rd, in accordance with the general formula (α-1), together form a branched or unbranched, saturated or unsaturated cyclic structure having 4 to 10 ring atoms which has not more than two heteroatoms from the group consisting of O and N.

11. The composition as claimed in claim 1 , characterized in that 70-100 wt % of the urea compound (B) either has at least two urea groups or has at least one urea group and at least one urethane group.

12. The composition as claimed in claim 1 , characterized in that 50-100 wt % of the urea compound (B) is present in accordance with the general formula (II)
R 31 —[R 33 —Z—R 34 —W—] n R 32    (II)

where
R 31 and R 32 each identically or differently and also each independently of one another are represented by a branched or unbranched, saturated or unsaturated organic radical which contains 1-100 carbon atoms and which has not more than one urea group each and not more than one urethane group each,
R 33 and R 34 each identically or differently and also each independently of one another are represented by branched or unbranched polyester radicals containing 1-300 carbon atoms and optionally containing ether groups, branched or unbranched polyether radicals containing 2-300 carbon atoms, branched or unbranched polyamide radicals containing 1-30

Assignees

• Leutfeld Daniela
• Eberhardt Marc
• Nagelsdiek Rene
• Buehne Sylvia
• Omeis Juergen
• Rudner Jasmin
• Byk Chemie Gmbh

Inventors

• Leutfeld Daniela
• Eberhardt Marc
• Nagelsdiek René
• Bühne Sylvia
• Omeis Jürgen
• Rudner Jasmin

Classifications

• C09D7/63

  organic · CPC title

• C08K5/21

  Urea; Derivatives thereof, e.g. biuret · CPC title

• C09D5/04 Primary

  Thixotropic paints · CPC title

• C08K5/20

  Carboxylic acid amides · CPC title

• C09D7/40 Primary

  Additives · CPC title