Solid air freshener

Patent metadata

Field	Value
Publication number	US-2019125913-A1
Application number	US-201816233298-A
Country	US
Kind code	A1
Filing date	Dec 27, 2018
Priority date	Nov 22, 2011
Publication date	May 2, 2019
Grant date	—

Abstract

The present invention relates to a solid pressed air freshener and odor neutralizer composition which can include greater than 10% fragrance. The air freshener comprises a fragrance; preferably the fragrance is impregnated within a water soluble substrate made from a foamed vegetable starch, a surfactant and a solidifier. The solid formulations break down easily in the presence of water and may be sprayed, within the area to be freshened.

First claim

What is claimed is:

1 - 20 . (canceled)

21 . A method of making a solid air freshener comprising the steps of:
combining a starch based fragrance component, a solidifier and a surfactant, wherein said surfactant and solidifier are in a ratio of greater than 1:1 on a percent weight basis; and compressing said components to form a solid, wherein said fragrance and said surfactant are not melted during combining.

22 . The method of claim 21 wherein said air freshener comprises greater than 10% fragrance.

23 . The method of claim 21 further comprising a disintegration aid.

24 . The method of claim 21 wherein the surfactant is a polyethylene oxide surfactant.

25 . The method of claim 24 wherein said polyethylene oxide surfactant is has a melting point greater than 30° C.

26 . The method of claim 25 wherein said surfactant is a C8 to C24 alcohol with from about 20-40 moles of ethoxylate.

27 . The method of claim 26 wherein the surfactant is sodium lauryl sulfate.

28 . The method of claim 21 wherein said solidifier is polyethylene glycol having an average molecular weight of 4000.

29 . The method of claim 21 wherein said starch fragrance composition is present in an amount of from about 35-60 wt. %.

30 . The method of claim 21 wherein said surfactant is present in an amount of from about 20-50 wt. %.

31 . The method of claim 21 wherein said solidifier is present in an amount of from about 15-40 wt. %.

32 . The method of claim 21 wherein said compression produces a stable solid with reduced leaching of fragrance.

33 . The method of claim 21 wherein said solid is created without employing a melt as in conventional casting.

34 . The method of claim 21 wherein said solid is formed from binding through compression.

35 . The method of claim 21 wherein said air freshener is stable under a range of temperatures, formed a clear use solution upon disintegration, and did not have significant fragrance weep.

36 . A method of deodorizing/freshening a surface, bounded volume of air, or environment, comprising:
obtaining a pressed solid air freshener composition comprising a fragrance component of from about 40-80 wt. %, a surfactant of from about 20-50 wt. %, and a solidifier of from about 15-40 wt. % wherein, said fragrance component comprises up to about 30% by weight of fragrance, and wherein said fragrance and said surfactant were not melted during mixing; dissolving the solid pressed air freshener to form a liquid composition; and applying the liquid solution to the surface, bounded volume of air, or environment to eliminate or attenuate odors.

37 . The method of claim 27 further comprising the applying a predetermined concentration of a deodorizing solution for eliminating or attenuating odors.

38 . The method of claim 27 wherein said dissolving is by:
applying water to the solid pressed air freshener so that the air freshener becomes dissolved to form a liquid composition.

39 . The method of claim 29 wherein said dissolving occurs within a spray

40 . The method of claim 30 further comprising:
directing a spray trigger nozzle generally at a surface, bounded volume of air, or
environment, and spraying solution from the article.

Assignees

• Ecolab Usa Inc

Inventors

• Blattner Amanda Ruth
• Hodge Charles Allen
• Kohnke Timothy John
• Levitt Mark Dennis
• Marquardt Julie E

Classifications

• B05B11/1011

  without substantial movement of the nozzle in the direction of the pressure stroke · CPC title

• A61L9/12

  Apparatus, e.g. holders, therefor · CPC title

• A61L9/048

  air treating gels · CPC title

• B05B11/3011

  Operations & Transport · mapped topic

• A61L9/01 Primary

  Deodorant compositions {(compositions released by contact with a liquid A61L9/05)} · CPC title