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US4620976A
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Pearlescent dispersion with good flow properties and a low surfactant content
Assignee: Hoechst AG
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Filing: 1985-06-05
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Granted: 1986-11-04
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Expires: 2005-06-05
Abstract
Abstract Pearlescent dispersions consisting of a fatty acid glycol ester, a fatty acid alkanolamide, one or more surfactants of the formulae ##STR1## in which the individual symbols of these formulae have the meanings given in the description, salts and water in the amount to make up to 100%. Pearlescent dispersions based on these surfactants have the advantage that they already have good flow properties at temperatures below 20° C.
Inventors
- 👤 Jochen M. Quack
- 👤 Alwin Reng
- 👤 Werner Skrypzak
- 👤 Walter Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:44
CPC Classifications
C; C11; C11D; C11D17/00; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/40; A61K8/42; A61K8/46; A61K8/466; A61Q; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02; C11D1/00; C11D1/38; C11D1/52; C11D1/523; C11D1/86; C11D3/00; C11D3/0005; C11D3/0089; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/596; C11D1/02; C11D1/12; C11D1/28; C11D1/66; C11D1/667; C11D1/75
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
298 words
A pearlescent dispersion with good flow properties, which consists essentially of 5-30% by weight of a fatty acid glycol ester of the formula I ##STR9## in which R 1 denotes a saturated or unsaturated hydrocarbon chain with 13-21 carbon atoms, A denotes a group of the formula --C 2 H 4 -- or --C 3 H 6 --, X denotes a hydrogen atom or a group of the formula ##STR10## and m denotes a number from 1 to 10, 2-20% by weight of a fatty acid alkanolamide of the general formula II ##STR11## in which R 2 denotes a saturated or unsaturated hydrocarbon chain with 7-29 carbon atoms and R 3 and R 4 independently of one another denote a hydrogen atom or a group of the formula --C 2 H 4 OH or --C 3 H 6 OH, 0.1-10% by weight of one or more surfactants of the formulae III-VI given below ##STR12## in which R 5 denotes a linear or branched, saturated or unsaturated hydrocarbon group with 8-20 carbon atoms, n denotes a number from 0 to 10, and Y denotes an alkali metal, alkaline earth metal or ammonium ion, ##STR13## in which R 6 denotes a linear or branched, saturated or unsaturated hydrocarbon chain with 7-29 carbon atoms and n and Y have the same meaning as in formula III, ##STR14## in which R 5 and R 6 have the same meaning as in the formulae III and IV, and ##STR15## in which R 5 , R 6 and n have the same meanings as in the formulae III and IV and Z denotes a hydrogen atom or an alkyl group with 1-5 carbon atoms, 0.1 to 3% of a monovalent or divalent metal salt, and water in the amount to make up to 100%.
Claim 2
Dependent Claim
298 words
A pearlescent dispersion with good flow properties, which consists essentially of 5-30% by weight of a fatty acid glycol ester of the formula I ##STR9## in which R 1 denotes a saturated or unsaturated hydrocarbon chain with 13-21 carbon atoms, A denotes a group of the formula --C 2 H 4 -- or --C 3 H 6 --, X denotes a hydrogen atom or a group of the formula ##STR10## and m denotes a number from 1 to 10, 2-20% by weight of a fatty acid alkanolamide of the general formula II ##STR11## in which R 2 denotes a saturated or unsaturated hydrocarbon chain with 7-29 carbon atoms and R 3 and R 4 independently of one another denote a hydrogen atom or a group of the formula --C 2 H 4 OH or --C 3 H 6 OH, 0.1-10% by weight of one or more surfactants of the formulae III-VI given below ##STR12## in which R 5 denotes a linear or branched, saturated or unsaturated hydrocarbon group with 8-20 carbon atoms, n denotes a number from 0 to 10, and Y denotes an alkali metal, alkaline earth metal or ammonium ion, ##STR13## in which R 6 denotes a linear or branched, saturated or unsaturated hydrocarbon chain with 7-29 carbon atoms and n and Y have the same meaning as in formula III, ##STR14## in which R 5 and R 6 have the same meaning as in the formulae III and IV, and ##STR15## in which R 5 , R 6 and n have the same meanings as in the formulae III and IV and Z denotes a hydrogen atom or an alkyl group with 1-5 carbon atoms, 0.1 to 3% of a monovalent or divalent metal salt, and water in the amount to make up to 100%.
Claim 3
Dependent Claim
20 words
A dispersion as claimed in claim 1, wherein A denotes a group of the formula --C 2 H 4 --.
Claim 4
Dependent Claim
16 words
A dispersion as claimed in claim 1, wherein m denotes a number from 1 to 3.
Claim 5
Dependent Claim
16 words
A dispersion as claimed in claim 1, wherein n denotes a number from 2 to 5.
Claim 6
Dependent Claim
21 words
A dispersion as claimed in claim 1, wherein said dispersion contains 0.5 to 1% of a monovalent or divlent metal salt.
Claim 7
Dependent Claim
18 words
A dispersion as claimed in claim 5, wherein said metal salt is an alkali metal chloride or sulfate.
Claim 8
Dependent Claim
43 words
A dispersion as claimed in 1, wherein: A denotes --C 2 H 4 --; m is 1 to 3; n is 2 to 5; and the dispersion contains 0.5 to 1% of an alkali metal chloride or sulfate as the monovalent metal salt.
Claim 9
Dependent Claim
68 words
A dispersion as claimed in claim 1, wherein the pearlescent effect has been provided by crystals of said fatty acid glycol ester of formula I and said fatty acid alkanolamide of formula II, said crystals being dispersed in an aqueous medium containing a surfactant component which is free of alkyl sulfates and alkyl ether-sulfates, said surfactant component consisting essentially of at least one surfactant of the formulae III-VI.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |