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US3649543A Expired / Lapsed US ⏱️ 0.0 years remaining

Combinations of hydroxyalkyl-n-methyl taurines and anionic surfactants as synergistic emulsifiers

Assignee: Lever Brothers Co
•
Filing: 1969-05-26
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Granted: 1972-03-14
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Expires: 1989-05-26
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Abstract

Abstract EMULSIFYING AGENTS CHARACTERIZED BY UNUSUAL MILDNESS TOWARD THE SKIN ARE DESCRIBED WHICH CONSIST ESSENTIALLY OF A SYNERGISTIC COMBINATION OF A WATER SOLUBLE TAURINE SALT OF THE GENERAL FORMULA: R1-CH(OH)-CH2-N(CH3)-CH2-CH2-SO3M WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND OXAALKYL RADICALS HAVING FROM 10 TO 18 CARBON ATOMS AND M IS A WATER-SOLUBILIZING CATION AND A SURFACE ACTIVE ORGANIC SULFATE OR SULFONATE DETERGENT, THE ORGANIC PORTION OF WHICH CONSISTS OF THE ATOMS C, H, OR AMIDO NITROGEN AND HAVING FROM 8 TO 20 CARBON ATOMS. THE TAURINE SALT IS PREFERBALY PRESENT IN A WEIGHT RATIO OF APPROXIMATELY 1:3 TO 3:1 WITH THE SULFATE OR SULFONATE DETERGENT INGREDIENT.

Inventors

  • 👤 Arno Cahn
  • 👤 Joseph Anthony Ackilli
  • 👤 Frank Emery Carroll

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 17:45
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/126; C11D1/88; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/05; Y10S516/07

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1975-03-14 1975-09-13 1976-03-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-14 1979-09-13 1980-03-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-14 1983-09-13 1984-03-14 $7700.00 Window Closed / Lapsed

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