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US5643864A Expired / Lapsed US ⏱️ 0.0 years remaining

Anionic surfactants having multiple hydrophobic and hydrophilic groups

Assignee: Rhodia Operations SAS
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Filing: 1994-08-19
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Granted: 1997-07-01
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Expires: 2014-08-19
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Abstract

Abstract According to the invention, an improved class of anionic surfactants having improved surfactant properties characterized as mild and environmentally safe have been provided comprising compounds of the formula: <IMAGE> I. The anionic surfactants of the invention have at least two hydrophobic chains and at least two hydrophilic groups per molecule and are useful as emulsifiers, detergents, dispersant and solubilizing agents.

Inventors

  • 👤 Ji Li
  • 👤 Manilal Dahanayake
  • 👤 Robert Lee Reierson
  • 👤 David James Tracy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:34
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/02; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61K8/44; A61K8/46; A61K8/466; A61Q; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02; C09; C09K; C09K23/00; C09K23/14; C09K23/22; C11D1/004; C11D1/04; C11D1/10; C11D1/12; C11D1/28; C11D1/34; C11D1/342; C11D1/345

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 323 words
Anionic surfactants comprising compounds of the formula: ##STR7## wherein R 1 represents R 4 --B--R 5 wherein R 4 can be alkyl or hydroxy substituted or perfluorinated alkyl of from 1 to about 22 carbon atoms and the hydroxy-substituted derivative thereof; B represents an amide group, wherein R 6 independently represents lower alkyl or hydroxy-substituted alkyl from 1 to about 6 carbons or hydrogen; R 2 can independently represent C 1 to about C 10 alkylene and the hydroxy-substituted derivatives thereof, an amide group, a polyether group or R 8 --D 1 --R 8 wherein R 6 has been hereinbefore defined and R 7 independently represents about C 2 to about C 4 alkyl with x being a number between 1 and 20 and R 8 can independently be C 1 to about C 6 alkylene and the hydroxy-substituted derivatives thereof and D 1 represents --O--, --S--, an amide group or --N(R 9 )-- wherein R 9 independently represents C 1 to about C 12 alkyl and the hydroxy-substituted derivatives thereof or hydrogen; R 3 can independently be alkylene or alkylaryl of 1 to about 10 carbon atoms and the hydroxy-substituted derivatives thereof or R 10 --D 2 --R 10 wherein R 10 can independently be alkylene of from 1 to about 6 carbon atoms and the hydroxy-substituted derivatives thereof as well as aryl, and D 2 represents --O--, --S--, --SO 2 --, a carbonyl group, a polyether group, or aryl wherein R 11 represents a carbon chain of from 1 to about 12 carbon atoms and the hydroxy-substituted derivatives thereof or hydrogen, R 7 being as defined hereinabove with x being a number between 1 and 20 and z is a number from 1 to about 4; "A" independently represents --N═ and Y independently represents hydrogen, --SO 3 H, --OSO 3 H, --OP(O)(OH) 2 , --P(O)(OH) 2 , --COOH, --CO 2 --C 6 H 4 --SO 3 H and the salts thereof.
Claim 2
Dependent Claim 323 words
Anionic surfactants comprising compounds of the formula: ##STR7## wherein R 1 represents R 4 --B--R 5 wherein R 4 can be alkyl or hydroxy substituted or perfluorinated alkyl of from 1 to about 22 carbon atoms and the hydroxy-substituted derivative thereof; B represents an amide group, wherein R 6 independently represents lower alkyl or hydroxy-substituted alkyl from 1 to about 6 carbons or hydrogen; R 2 can independently represent C 1 to about C 10 alkylene and the hydroxy-substituted derivatives thereof, an amide group, a polyether group or R 8 --D 1 --R 8 wherein R 6 has been hereinbefore defined and R 7 independently represents about C 2 to about C 4 alkyl with x being a number between 1 and 20 and R 8 can independently be C 1 to about C 6 alkylene and the hydroxy-substituted derivatives thereof and D 1 represents --O--, --S--, an amide group or --N(R 9 )-- wherein R 9 independently represents C 1 to about C 12 alkyl and the hydroxy-substituted derivatives thereof or hydrogen; R 3 can independently be alkylene or alkylaryl of 1 to about 10 carbon atoms and the hydroxy-substituted derivatives thereof or R 10 --D 2 --R 10 wherein R 10 can independently be alkylene of from 1 to about 6 carbon atoms and the hydroxy-substituted derivatives thereof as well as aryl, and D 2 represents --O--, --S--, --SO 2 --, a carbonyl group, a polyether group, or aryl wherein R 11 represents a carbon chain of from 1 to about 12 carbon atoms and the hydroxy-substituted derivatives thereof or hydrogen, R 7 being as defined hereinabove with x being a number between 1 and 20 and z is a number from 1 to about 4; "A" independently represents --N═ and Y independently represents hydrogen, --SO 3 H, --OSO 3 H, --OP(O)(OH) 2 , --P(O)(OH) 2 , --COOH, --CO 2 --C 6 H 4 --SO 3 H and the salts thereof.
Claim 3
Dependent Claim 20 words
The surfactant of claim 1, wherein R 2 independently are lower alkylene of from 1 to about 4 carbon atoms.
Claim 4
Dependent Claim 19 words
The surfactant of claim 2 wherein R 4 is alkyl of from about 6 to about 18 carbon atoms.
Claim 5
Dependent Claim 19 words
The surfactant of claim 1, wherein R 5 is independently alkylene of from 2 to about 6 carbon atoms.
Claim 6
Dependent Claim 14 words
The surfactant of claim 1, wherein Y is sulfate, phosphate, carboxylate and salts thereof.
Claim 7
Dependent Claim 35 words
The surfactant of claim 1, wherein said salt in Formula I is selected from the group consisting of an alkali metal salt, an alkaline earth metal salt, an ammonium salt, and an organic base salt.
Claim 8
Dependent Claim 25 words
The surfactant of claim 1, wherein said organic base salt is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, triethylamine, trimethylamine and N-hydroxyethyl morpholine.
Claim 9
Dependent Claim 16 words
The surfactant of claim 1, wherein said salt in Formula I is an alkali metal salt.
Claim 10
Dependent Claim 22 words
The surfactant of claim 1, further comprising a surfactant selected from the group consisting of an anionic, nonionic, cationic, and amphoteric surfactant.
Claim 11
Dependent Claim 125 words
The blend of surfactants of claim 9, wherein said nonionic surfactant is selected from the group consisting of a fatty acid glycerine ester, a sorbitan fatty acid ester, a sucrose fatty acid ester, a polyglycerine fatty acid ester, a higher alcohol ethylene oxide adduct, a single long chain polyoxyethylene alkyl ether, a polyoxyethylene alkyl allyl ether, a polyoxethylene lanolin alcohol, a polyoxyethylene fatty acid ester, a polyoxyethylene glycerine fatty acid, a polyoxyethylene propylene glycol fatty acid ester, a polyoxyethylene sorbitol fatty acid ester, a polyoxyethylene castor oil or hardened castor oil derivative, a polyoxyethylene lanolin derivative, a polyoxethylene fatty acid amide, a polyoxyethylene alkyl amine, an alkyl pyrrolidone, glucamides, alkylpolyglucosides, a mono or dialkanol amide, a polyoxyethylene alcohol mono or diamide, and an alkylamine oxide.
Claim 12
Dependent Claim 84 words
The blend of surfactants of claim 9, wherein said anionic surfactant is selected from the group consisting of a fatty acid soap, an ether carboxylic acid and salt thereof, an alkane sulfonate salt, an α-olefin sulfonate salt, a sulfonate salt of a higher fatty acid ester, a higher alcohol sulfate ester salt, fatty alcohol ether sulfate salts, a higher alcohol phosphate ester salt, a fatty alcohol ether phosphate ester salt, a condensate of higher fatty acids and amino acids, and a collagen hydrolysate derivative.
Claim 13
Dependent Claim 42 words
The blend of surfactants of claim 9, wherein said cationic surfactant is selected from the group consisting of an alkyltrimethylammonium salt, a dialkyldimethylammonium salt, an alkyldimethylbenzylammonium salt, an alkylpyridinium salt, an alkylisoquinolinium salt, benzethonium chloride, and an acylamino acid type cationic surfactant.
Claim 14
Dependent Claim 34 words
The blend of surfactants of claim 9, wherein said amphoteric surfactant is selected from the group consisting of an amino acid, betaine, sultaine, phosphobetaine, an imidazoline type amphoteric surfactant, soybean phospholipid, and yolk lecithin.
Claim 15
Dependent Claim 45 words
The surfactant of claim 1, wherein said compound of Formula I is selected from the group consisting of: ##STR8## wherein R 2 , R 3 , R 4 and Y are as defined hereinabove, and m represents a number between about 2 and about 10.

References Cited (Backward Citations)

GB1502280A Cited
US4728337A Cited
US4906413A Cited
US4721512A Cited
JPS62175453A Cited
US5160450A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-06-30 2000-12-30 2001-07-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-06-30 2004-12-30 2005-07-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-06-30 2008-12-30 2009-07-01 $7700.00 Window Closed / Lapsed

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