# US 8,541,358 B2 · Fragrant gel polymer with water

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- Number: US 8,541,358 B2
- Document ID: US8541358B2
- Status: Granted
- Kind: B2
- Application number: 13/135,373
- Filed: 2011-07-01
- Published: 2012-12-20
- Granted: 2013-09-24
- Earliest claimed: 2010-07-08
- Assignees: Orlandi, Inc.
- Applicants: Sven Dobler; Long Tran
- Inventors: Sven Dobler; Long Tran
- Web page: https://patentgrep.com/patent/US8541358B2

## CPC

- A61L 9/048: {air treating gels}
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

The fragrant gel polymer system is a process where a fragrance formulation is divided and blended with a polymer and a cross-linking agent. The polymer is then liquefied and made homogenous with a solvent, including esters. The solvent modifies viscosity and later eases the mixing of the polymer with the cross-linking agent. The cross linking agent is then liquefied and blended with water and aliphatic alcohol reducing steric hindrance. Mixing of the fragrance carrying polymer and the cross linking agent results in a gel that sets in less time and with less syneresis than existing processes. The resulting gel achieves a near transparent form and receives dyes while attaining various molded shapes.

## Claims

### Claim 1

A process for preparing a fragrant gel with reduced steric hindrance comprising the steps of:
blending a mixture A including a major portion of a fragrance oil included in an amount at about 0.0001 to about 30% by weight of the composition, a polymer, and an optional solvent of about 1% to 10% by weight of the composition, said polymer is derived from one of maleinized butadiene having a molecular weight of at least 5,000, maleinized polyisoprene of a molecular weight of at least 200,000, or chloroprene, and wherein said solvent solely modifies the viscosity of said mixture A;
blending a liquid mixture B including a cross linking agent and said solvent, wherein said cross linking agent included in the composition in an amount of about 1% to about 10% by weight, and said cross linking agent derived from one of amine or polyetheramine, said polyetheramine being included in the composition in an amount of 1% to 5% by weight, and wherein said solvent solely modifies the viscosity of the mixture B;
blending a mixture C including said mixture B, water, and a short chain linear alcohol, included in an amount of about 1% to about 8% by weight of the composition;
blending a mixture D including said mixture C and a minor portion of said fragrance oil;
blending mixture A with mixture D;
forming a gel carrying the fragrance following said blending of mixture A with mixture D with a minimum of syneresis and steric hindrance;
the process further comprising blending said mixture D including an accelerator included in an amount of about 0.05% to about 2% by weight of the composition;
wherein said short chain linear alcohol is no longer than pentyl alcohol, and said short chain linear alcohol is one of pentyl alcohol, isopropyl alcohol, ethyl alcohol, and methyl alcohol;
wherein said process reduces premature reaction of said polymer and said cross-linking agent with said fragrance oil;
and wherein said process produces a fragrance carrying gel being generally transparent and that remains together as a whole.

### Claim 2 (depends on 1)

The fragrant gel preparing process of claim 1 further comprising:
providing a substrate having at least one recess; and,
said forming a gel occurring in a recess of a substrate.