Quest International B.v.

Unilever Patent Holdings B.v.

Quest International Services B.v.

Richard Arthur Birch

John M Behan

Jeremy N Ness

Keith Douglas Perring

Joseph Brain

Stephen D Watkins

Stephen Moreton

Kathleen Mary Tuck

Derek Aldcroft

Maxine Jayne Hills

John Leake

Henk Helweg

Mike Halliday

Anthony Nock

The present invention provides an insect repellent fragrance comprising; (a) at least 10% by weight of the insect repellent fragrance of geraniol; (b) at least 10% by weight of the insect repellent fragrance of diethyl phthalate; and (c) at least one or more of linalol, limonene, citronellal, terpinolene and p-tertiary butyl cyclohexyl acetate; wherein the insect repellent fragrance comprises at least 60% by total weight of the insect repellent fragrance of (a), (b) and (c). The insect repellent fragrance surprisingly demonstrates effective repellency, particularly against cockroaches, and more particularly against both German and American cockroaches.

Insect repellents

Particles suitable for inclusion in a dry product or article, typically a laundry powder, comprise a core of swellable material, e.g. an organic polymer, containing perfume absorbed therein, the core being coated with water-soluble encapsulating material impervious to the perfume. The coating of the particles acts to prevent premature evaporation or dissipation from the particles of the loaded perfume until the coating is dissolved on contact with water in use.

Particles

A granular composition, especially for incorporation in washing powder formulations, comprises at least 40% by weight of an amorphous silica and typically at least 30% by weight of a functional ingredient such as a perfume, the amorphous silica having a surface area of at least 550 m /g, a pore volume from about 1.0 to about 2.5 ml/g and a particle size of no more than 50 microns, the granules of said composition having a particle size from about 200 to about 2000 microns.

Granular compositions

The use of specific perfume ingredients, e.g. tricyclodecenyl allyl ether, to repel insects. The perfume ingredients may be used in a composition comprising from 0.1 to 40 percent by weight of one or more of the perfume ingredients. Preferably at least one of the perfume ingredients has a hydrophobicity such that the common logarithm of the octanol-water partition coefficient, log P, of the perfume ingredient is in the range 1.0 to 6.0.

The use of menthyl 2-pyrrolidone-5-carboxylate as an insect repellent, usually by application to a substrate or into an air space. The menthyl 2-pyrrolidone-5-arboxylate can be used as a composition, which may be perfumed. A useful composition comprises a mixture of menthyl 2-pyrrolidone-5-arboxylate and a known insect repellent or a compound shown to be an effective insect repellent on a test described herein.

Use of menthyl-2 pyrrolidone-5-carboxylate as an insect repellent

Humidity resistant composition

Perfumed laundry detergent powders

The invention concerns perfumed underarm hygiene products containing perfume encapsulated in a film forming encapsulation material showing improved re-encapsulating properties as evidenced by the 'perfume re-encapsulation test. The underarm hygiene products preferably contain 0.05-10% w/w of perfume encapsulates. The perfume encapsulates used contain preferably 15-65% w/w of perfume. The underarm hygiene products may additionally contain a quantity of neat perfume.

Perfumed underarm hygiene products

Growing community of inventors

Kent, United Kingdom

Richard Arthur Birch