Solid non-aqueous gel air odorizer

Patent metadata

Field	Value
Publication number	US-10918756-B2
Application number	US-201716340236-A
Country	US
Kind code	B2
Filing date	Oct 13, 2017
Priority date	Nov 2, 2016
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A solid non-aqueous gel air odorizer is provided, including: a poly(propylene oxide); an ethyl cellulose polymer; a C 1-5 alkyl monoester of a C 8-22 fatty acid; and a fragrance; wherein the solid non-aqueous gel air odorizer contains <1.5 wt % water.

First claim

I claim:

1. A solid non-aqueous gel air odorizer, comprising:
20 to 75 wt %, based on weight of the solid non-aqueous gel air odorizer, of a poly(propylene oxide); wherein the poly(propylene oxide) has a weight average molecular weight of 300 to 1,000 Daltons;
0.5 to 30 wt %, based on weight of the solid non-aqueous gel air odorizer, of an ethyl cellulose polymer;
20 to 75 wt %, based on weight of the solid non-aqueous gel air odorizer, of a C 1-5 alkyl monoester of a C 8-22 fatty acid; and
4.5 to 50 wt %, based on weight of the solid non-aqueous gel air odorizer, of a fragrance;
wherein the solid non-aqueous gel air odorizer contains <1.5 wt %, based on weight of the solid non-aqueous gel air odorizer, water.

2. The solid non-aqueous gel air odorizer of claim 1 , further comprising an optional additive, wherein the additive is selected from the group consisting of at least one of a preservative, an antioxidant, a viscosity modifier, a solubility modifier, an antimicrobial agent, a binder, a chelating agent, a fungicide, an aesthetics enhancer and a filler.

3. The solid non-aqueous gel air odorizer of claim 2 , wherein the optional additive includes an aesthetics enhancer selected from the group consisting of at least one of flowers, beads, dyes, pigments, photochromic agents, optical brighteners, pearlescent agents, glitters and luminescent agents.

4. The solid non-aqueous gel air odorizer of claim 1 , wherein the C 1-5 alkyl monoester of the C 8-22 fatty acid is selected from the group consisting of at least one of isopropyl palmitate, methyl oleate and butyl stearate.

5. The solid non-aqueous gel air odorizer of claim 1 , wherein the C 1-5 alkyl monoester of the C 8-22 fatty acid is isopropyl palmitate.

6. The solid non-aqueous gel air odorizer of claim 5 , wherein the poly(propylene oxide) has a weight average molecular weight of 400 to 500 Daltons.

7. The solid non-aqueous gel air odorizer of claim 6 , further comprising an optional additive, wherein the optional additive is selected from the group consisting of at least one of a preservative, an antioxidant, a viscosity modifier, a solubility modifier, an antimicrobial agent, a binder, a chelating agent, a fungicide, an aesthetics enhancer and a filler.

8. The solid non-aqueous gel air odorizer of claim 6 , wherein the solid non-aqueous gel air odorizer includes:
33 to 45 wt % of the poly(propylene oxide);
9 to 11 wt % of the ethyl cellulose polymer;
38 to 50 wt % of the isopropyl palmitate;
8 to 20 wt % of the fragrance.

Assignees

• Dow Global Technologies Llc

Inventors

• Ferrieux Severine

Classifications

• A61L9/042 Primary

  with the help of a macromolecular compound as a carrier or diluent (A61L9/048 takes precedence) · CPC title

• A61L9/048 Primary

  air treating gels · CPC title

• A01M29/12

  using odoriferous substances, e.g. aromas, pheromones or chemical agents · CPC title

• A61L9/044

  with the help of an organic compound other than a macromolecular compound · CPC title

• A61L9/012

  characterised by being in a special form, e.g. gels, emulsions {(A61L9/048 takes precedence)} · CPC title