Patent ID: 8541358
Filing Date: 2013-09-24
Classification: A61L

Abstract:
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.