Denture cleaning concentrate

• US 4,016,089 A
• Filed: 11/11/1974
• Issued: 04/05/1977
• Est. Priority Date: 11/11/1974
• Status: Expired due to Term

• Current Assignee: Barrier F. Regan, Glen B. Regan
• Original Assignee: Barrier F. Regan, Glen B. Regan
• Inventors: Regan, Glen B., Regan, Barrier F.
• Primary Examiner(s): Willis, Jr., P. E.
• Application Number:
  US05/522,328
• Time in Patent Office: 876 Days
• Field of Search: 252/106, 252/136, 252/142, 252/408, 252/547, 252/108, 252/102
• US Class Current: 510/100
• CPC Class Codes: A61K 2800/45 Colour indicators, e.g. pH- or Redox indicators
• CPC Class Codes: A61K 8/24 Phosphorous; Compounds thereof
• CPC Class Codes: A61K 8/39 Derivatives containing from 2 to 10 oxyalkylene groups
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61Q 11/02 Preparations for deodorising, bleaching or disinfecting dentures
• CPC Class Codes: C11D 1/62 Quaternary ammonium compounds
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/835 Mixtures of non-ionic with cationic compounds
• CPC Class Codes: C11D 3/40 Dyes ; Pigments
• CPC Class Codes: C11D 7/08 Acids

Abstract

A denture cleaning concentrate containing orthophosphoric acid, nonionic detergent, a quaternary ammonium germicide and an indicator which undergoes a color change in the pH range 4 to 4.6 is described.

Claims

1. A denture cleaning concentrate consisting essentially of an aqueous solution containing 4 to 10 percent by weight of orthophosphoric acid, 3.5 to 5 percent by weight of a water soluble alkyl phenyl polyglycolether, 0.5 to 1.0 percent by weight of a quaternary ammonium germicide containing one alkyl group of 10 to 20 carbon atoms and three lower organic radicals selected from the group consisting of methyl, ethyl and benzyl and 0.003 to 0.01 percent by weight of a chemical indicator for pH which undergoes a color change at pH about 4.5.

2. Concentrate as defined in claim 1 wherein the chemical indicator is brom phenol blue.