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US 5,470,383 AGranted
Thickener combinations for building products
AssigneeHoechst Aktiengesellschaft
InventorsWalter Schermann, Dennis Miller, Eckhard Hilgenfeldt, Jozef Bohme-Kovac
Life of this patent
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Abstract
The invention relates to thickener combinations for building products of nonionic cellulose ethers soluble in water or aqueous surfactant solutions and selected surfactants or naphthalenesulfonic acid condensation products.
Claims11
A thickener composition for building products comprising:
- a component I), comprising at least one nonionic cellulose ether soluble in water or aqueous surfactant solutions, wherein the cellulose ether is substituted by at least one hydrocarbon radical having from 8 to 36 carbon atoms, and
- a component II), comprising from 0.05 to 10% by weight, based on the total weight of component I and component II, of one of the following surfactant components
- a) at least one nonionic surfactant of the formula
- R--A.sub.n --OH
- in which
- R is C.sub.8 -C.sub.22 -alkyenyl, C.sub.8 -C.sub.22 -alkaryl or C.sub.2 -C.sub.12 -alkaryl,
- A is the group OCH.sub.2 CH.sub.2 or OCH(CH.sub.3)CH.sub.2, and
- N is a number from 1 to 8,
- b) at least one ethersulfate, ethersulfonate, ethercarboxylate, iseothionate, or mixtures thereof of the formula ##STR8## in which R is C.sub.8 -C.sub.22 -alkyl, C.sub.8 -C.sub.22 -alkenyl or C.sub.2 -C.sub.12 -alkaryl,
- Z is a group of the formula OSO.sub.3.sup..crclbar., SO.sub.3.sup..crclbar., or OCO.sub.2.sup..crclbar.,
- M is an alkali metal ion or triethanolammonium ion,
- p is either 0 or 1, and
- q is a number from 1 to 5,
- c) at least one olefinsulfonate sodium salt, a primary or secondary alkanesulfonate, or a primary or secondary alkarylsulfonate,
- d) at least one tauride, methyltauride, or mixtures thereof of the formula ##STR9## in which R.sub.1 is C.sub.8 -C.sub.18 -alkyl or C.sub.8 -C.sub.18 -alkenyl,
- R.sub.2 is hydrogen or methyl, and
- M is an alkali metal ion or triethanolammonium ion,
- d) at least one cationic surfactant of the formula ##STR10## in which R.sub.3 is C.sub.8 -C.sub.20 -alkyl,
- R.sub.4 is hydrogen, methyl, benzyl, or C.sub.8 -C.sub.20 -alkyl, and
- X.sub.1.sup.- is a halide ion, acetate ion, lactate ion, or methylsulfate ion, or
- e) at least one naphthalenesulfonic acid/formaldehyde condensation product.
18 more elements
A thickener composition consisting essentially of:
- a component I), consisting essentially of at least one nonionic cellulose ether soluble in water or aqueous surfactant solutions, wherein the cellulose ether is substituted by at least one hydrocarbon radical having from 8 to 36 carbon atoms, and
- a component II), consisting essentially of from 0.05 to by weight, based on the total weight of component I and component II, of one of the following surfactant components
- a) at least one nonionic surfactant of the formula
- R--A.sub.n --OH
- in which
- R is C.sub.8 -C.sub.22 -alkyl, C.sub.8 -C.sub.22 -alkenyl or C.sub.2 -C.sub.12 -alkaryl,
- A is the group OCH.sub.2 CH.sub.2 or OCH(CH.sub.3)CH.sub.2, and
- N is a number from 1 to 8,
- b) at least one ethersulfate, ethersulfonate, ethercarboxylate, iseothionate, or mixtures thereof of the formula ##STR13## in which R is C.sub.8 -C.sub.22 -alkyl, C.sub.8 -C.sub.22 -alkenyl or C.sub.2 -C.sub.12 -alkaryl,
- Z is a group of the formula OSO.sub.3.sup..crclbar., SO.sub.3.sup..crclbar., or OCO.sub.2.sup..crclbar.,
- M is an alkali metal ion or triethanolammonium ion,
- p is either 0 or 1, and
- q is a number from 1 to 5,
- c) at least one olefinsulfonate sodium salt, a primary or secondary alkanesulfonate, or a primary or secondary alkarylsulfonate,
- d) at least one tauride, methyltauride, or mixtures thereof of the formula ##STR14## in which R.sub.1 is C.sub.8 -C.sub.18 -alkyl or C.sub.8 -C.sub.18 -alkenyl,
- R.sub.2 is hydrogen or methyl, and
- M is an alkali metal ion or triethanolammonium ion,
- d) at least one cationic surfactant of the formula ##STR15## in which R.sub.3 is C.sub.8 -C.sub.20 -alkyl,
- R.sub.4 is hydrogen, methyl, benzyl, or C.sub.8 -C.sub.20 -alkyl, and
- X.sub.8.sup.- is a halide ion, acetate ion, lactate ion, or methylsulfate ion, or
- e) at least one naphthalenesulfonic acid/formaldehyde condensation product.
18 more elements
Dependencies are inferred from the claim text.