Stable fragrance microcapsule suspension and process for using same

A suspension, stable technology, applied in the formulation of essential oils/fragrances, perfume preparations, chemical instruments and methods, etc., can solve problems such as unclear and unclear technology

Inactive Publication Date: 2005-11-02
INTERNATIONAL FLAVORS & FRAGRANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Techniques for avoiding or overcoming this problem disclosed in the prior art are neither clear nor clear

Method used

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  • Stable fragrance microcapsule suspension and process for using same
  • Stable fragrance microcapsule suspension and process for using same
  • Stable fragrance microcapsule suspension and process for using same

Examples

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Embodiment Construction

[0042] The stable suspensions of the present invention include a suspension that is (i) filled with a fragrance and / or other adjuvant such as deodorant and / or insect repellent (optionally also a compatible solvent) microcapsules suspended in (ii) an aqueous emulsion containing a free fragrance, water and an aqueous emulsion containing HLB values ​​of approximately 6 to 40, provided that:

[0043] (a) when a nonionic emulsifier is used, the HLB value is in the range of about 6 to 20;

[0044] (b) when an anionic emulsifier is used, the HLB value is in the range of about 10 to 40; and

[0045] (c) When a zwitterionic emulsifier is used, the HLB value is in the range of about 6-12.

[0046] Emulsifier

[0047] For the preparation of the suspensions according to the invention, emulsifiers, also called surfactants, are used in a concentration of about 0.5 to 100% by weight, based on the amount of free perfume composition and / or adjuvants; preferably about 1 to 10% by weight, mos...

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Abstract

Described is a stable initial impact and continuous impact fragrance and / or benefit agent-imparting aqueous suspension of microencapsulated fragrance and / or benefit agent, e.g., malodour counteractant suspended in a non-confined fragrance-containing and / or benefit agent-containing liquid phase oil-in-water emulsion. On storage, the viscosity of the suspension undergoes a minimal increase over an extended period of time thereby avoiding undesirable agitation resistance during the blending of the suspension with other materials. The suspension is thus useful for imparting a benefit or an aroma to a consumable material such as a liquid anionic, cationic, non-ionic or zwitterionic detergent, a shampoo, a bodywash, liquid soaps, hair conditioners, skin lotions, anti-perspirants, deodorants or liquid fabric softener and / or conditioner compositions. Also described is a process for preparing such stable suspensions and apparatus for carrying out such process.

Description

field of invention [0001] Substantially stable constant viscosity perfume and / or benefit agent microcapsule suspension suspended in a water composed of free (non-confined) perfume and / or benefit agent-emulsifier-water In oil-in-emulsion. Background of the invention [0002] The prior art generally recognizes the need for controlled and directed delivery of fragrances and adjuvants such as malodour counteractants to fabrics, human epidermis, hair follicles and their immediate surroundings, with at least a small amount of persistence, in many cases, It is also considered desirable to have an initial burst of fragrance and / or adjuvant at the same time. Additionally, the prior art recognizes the need to control the viscosity of aqueous household products, such as liquid fabric softener and / or fabric conditioner compositions, during manufacture and use. [0003] U.S. Patent No. 4,428,869 discloses colognes, aftershave lotions, after-bath preparations (after-bath preparations) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/11A61K8/31A61K8/33A61K8/34A61K8/35A61K8/37A61K8/46A61K8/55A61K8/86A61Q5/02A61Q5/12A61Q13/00A61Q15/00A61Q17/02A61Q19/00A61Q19/10B01J13/00B01J13/14C11D3/00C11D3/50C11D17/00
CPCC11D17/0039B01J13/14A61K8/553A61Q17/02A61K8/11A61K8/463C11D3/505A61K8/86A61K2800/412A61Q13/00
Inventor K·李L·M·波波普莱韦
Owner INTERNATIONAL FLAVORS & FRAGRANCES
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