Aerosol germicide and dye

• US 4,678,658 A
• Filed: 11/26/1986
• Issued: 07/07/1987
• Est. Priority Date: 05/24/1985
• Status: Expired due to Fees

• Current Assignee: Irene Casey, Larry J. Casey
• Original Assignee: Irene Casey, Larry Casey
• Inventors: Tuse, Daniel, Casey, Irene
• Primary Examiner(s): Rose, Shep K.
• Application Number:
  US06/935,236
• Time in Patent Office: 223 Days
• Field of Search: 424/7.1, 424/43, 424/45, 252/106, 252/408.1, 252/522
• US Class Current: 424/10.3
• CPC Class Codes: A01N 25/06 Aerosols
• CPC Class Codes: A61L 2/22 Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
• CPC Class Codes: A61L 9/14 using sprayed or atomised substances including air-liquid contact processes
• CPC Class Codes: C11D 3/40 Dyes ; Pigments
• CPC Class Codes: C11D 9/444 Dyes; Pigments

Abstract

An aerosol spray for use in disinfecting a surface for personal use, such as a public restroom facility or telephone. The composition and delivery of the composition provides for the placement of a spray of disinfectant which includes a dye. The dye disappears as the spray effects the germicidal activity of the disinfectant. The composition is also rapidly drying, so that the dye disappears as well as the disinfecting composition leaving the surface dry.

Claims

1. A biocide aerosol spray dispensing unit for disinfecting a surface with a fine spray consisting essentially of

a fluid biocide;

a sufficiently airtight container for said fluid biocide;

said fluid biocide including a lower alkyl alcohol having 1 to 4 carbon atoms, an effective amount of a disinfecting surfactant, a pH sensitive dye, and alkali means for adjusting the pH of the fluid to produce a color in the liquid in the dye so that upon neutralization the dye loses color; and

a propellant system to disperse a fine spray of said biocide on the surface to be disinfected.

2. A biocide aerosol of claim 1 wherein said pH sensitive dye is an indicator which is colored in the alkali state and loses color when dispersed as a fine spray upon oxidation in the atmosphere.

3. A biocide aerosol of claim 1 wherein said alcohol is mixed with water up to about 30% of water.

4. A biocide aerosol of claim 1 wherein said alcohol is isopropanol.

5. A biocide aerosol of claim 1 wherein said disinfecting surfactant is selected from the group of sodium dodecyl sulfate, octyl phenoxy polyethoxyethanol, triethanol amine lauryl sulfate and mixtures thereof.

6. A biocide aerosol of claim 1 wherein said propellant is selected from a fluorocarbon or hydrocarbon propellant.

7. A biocide aerosol of claim 1 with a fragrance additive.