Perfume polymeric particles
AssigneeThe Procter & Gamble Company
InventorsGlenn Thomas Jordan IV, Bernard William Kluesener, Mark Robert Sivik, Vicente Santamarina, Robert Richard Dykstra, Natalia N.L. Lebedev, Lois Sara Gallon, Ellen Schmidt Baker, Patrick Amrhein, Dieter Boeckh, Stefan Frenzel, Ekkehard Jahns, Volker Schwendemann
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Abstract
Perfume polymeric particles, polymeric particles having affinities for certain perfume raw materials, compositions containing them and methods for making the same are provided.
Claims34
A perfume polymeric particle comprising:
- a) a polymer;
- and
- b) a perfume comprising a perfume raw material having a Kovats Index value of from about 1000 to about 1400 and optionally one or more of the following characteristics:
- a molecular weight of less than about 200;
- a boiling point of less than about 250° C.;
- or
- a ClogP of less than about 3;
- wherein a Response Factor (RF) of the perfume polymeric material is at least about 1.5, as measured by Longevity Test Protocols I or II.
A perfume polymeric particle comprising:
- a) a polymer;
- and
- b) a perfume comprising
- one or more LKI perfume raw materials, each having a Kovats Index value of from about 1000 to about 1400, and the LKI perfume raw materials collectively provide a first Average Response Factor (ARFLKI);
- and
- one or more HKI perfume raw materials, each having a Kovats Index value of greater than about 1700, and the HKI perfume raw materials collectively provide a second Average Response Factor (ARFHKI);
- wherein the perfume polymeric particle has a ratio of ARFLKI/ARFHKI of at least about 1.2, as measured by Longevity Test Protocols I or II.
A method for making two or more perfume polymeric particles having improved delivery of perfume raw materials, the method comprising the steps of:
- adding a first polymeric particle to a liquid medium;
- adding a perfume comprising a first perfume raw material and a second, different perfume raw material to the liquid medium, the first polymeric particle having a higher affinity for the first perfume raw material than for the second perfume raw material;
- and
- optionally, adding a second polymeric particle to the aqueous medium, the first and the second polymeric particles comprising at least one different monomer and the second polymeric particle having a higher affinity for the second perfume raw material than for the first perfume raw material;
- wherein the first and the second perfume raw materials have one or more of the following characteristics:
- a molecular weight of less than about 200;
- a boiling point of less than about 250° C.;
- a ClogP of less than about 3;
- or
- a Kovats Index value of less than about 1700.
A polymeric particle comprising a polymer which, when mixed with perfume raw materials, exhibits at least about 1.2 times greater affinity for perfume raw materials having a Kovats Index value of from about 1000 to about 1400 than for perfume raw materials having a Kovats Index value of at least about 1700, as measured by the Polymeric Particle Affinity Test.
Dependencies are inferred from the claim text.