Process for preparing fragrance chips

• US 4,761,437 A
• Filed: 01/09/1987
• Issued: 08/02/1988
• Est. Priority Date: 01/09/1987
• Status: Expired due to Term

• Current Assignee: Sharon K. Christie
• Original Assignee: Sharon K. Christie
• Inventors: Christie, Sharon K.
• Primary Examiner(s): Lilling, Herbert J.
• Application Number:
  US07/001,684
• Time in Patent Office: 571 Days
• Field of Search: 523/102, 252/174.11
• US Class Current: 523/102
• CPC Class Codes: A61K 2800/56 Compounds, absorbed onto or entrapped into a solid carrier, e.g. encapsulated perfumes, inclusion compounds, sustained release forms
• CPC Class Codes: A61K 8/8135 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers, e.g. vinyl esters (polyvinylacetate)
• CPC Class Codes: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00

Abstract

A fragrance chip which incorporates a substantial quantity of liquid fragrance material is prepared by absorbing liquid fragrance material on ethylene vinyl acetate copolymer, melting and shaping the copolymer to produce a solid fragrance chip having the desired shape. Polyolefins and other polymeric materials may be included to achieve the desired physical and fragrance release characteristics.

Claims

1. A process for producing a fragrance material incorporating solid body comprising:

selecting a liquid fragrance material,

selecting a substantially dry solid phase ethylene vinyl acetate copolymer in particulate form,

combining said copolymer and no more than about 25 weight percent of said fragrance material and admixing the resulting mass at no more than about 100 degrees Fahrenheit until said resulting mass is substantially dry,

allowing the resulting admixture to stand at approximately room temperature for at least 12 hours to produce a seasoned admixture,

heating said seasoned admixture at a temperature not to exceed approximately 325 degrees Fahrenheit to produce a molten admixture,

forming the resultant molten admixture into a desired configuration and cooling said molten admixture while maintaining said configuration to produce said fragrance material incorporating solid body. PG,17

2. A process of claim 1, including melting said admixture in a screw extruder and injection molding said molten admixture to form said fragrance material incorporating solid body.

3. A process of claim 1 including combining no more than approximately 75 percent by weight of the solid body of low density polyolefin.