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US 10,993,466 B2Granted
Delivery systems and methods of preparing the same
AssigneeInternational Flavors & Fragrances Inc.
InventorsLewis Michael Popplewell, Franklin Pringgosusanto, Lulu Henson
Life of this patent
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Abstract
Methods of preparing a delivery system are described. Each method uses a first and second printing materials. The second printing material contains an active material such as a fragrance, flavor, malodor counteracting agent, and mixture thereof.
Claims8
A method of preparing a delivery system, the method comprising:
- (a) providing a first and second printing materials,
- (b) depositing the first printing material, the second printing material, or both to form a first thin layer,
- (c) repeating step (b) a predetermined number of times so that a new thin layer is formed on top of a previously formed thin layer and a solid or semisolid layer-by-layer construction is thus prepared, and
- (d) curing the construction, thereby preparing a delivery system,
- wherein each of the first and second printing materials contains a polymeric material having a melting point or glass transition point of 75 to 165° C., and the second printing material contains a fragranced polymer.
2 more elements
A method of preparing a delivery system, the method comprising:
- (a) providing a first and second printing materials,
- (b) depositing the first printing material, the second printing material, or both to form a first thin layer,
- (c) repeating step (b) a predetermined number of times so that a new thin layer is formed on top of a previously formed thin layer and a solid or semisolid layer-by-layer construction is thus prepared, and
- (d) curing the construction, thereby preparing the delivery system,
- wherein the first printing material contains a polymer having a melting point of 45° C. to 300° C., and the second printing material is a mixture of a fragranced polymer and polylactic acid at a ratio of 10:90 to 90:10.
2 more elements
Dependencies are inferred from the claim text.