Patent EP0211298A2 successfully refreshed from Google Patents.
EP0211298A2
Expired / Lapsed
EP
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Free-Flowing dry powder compositions containing oily liquid
Assignee: DeSoto Inc
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Filing: 1986-07-19
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Granted: —
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Expires: 2006-07-19
Abstract
Abstract Vesiculated beads of cross-linked resin containing an average of at least 5 thin-walled foraminous cells to provide communication between the vesicles within the bead and the exterior of the beads to allow liquid to move into and out of the beads have an emollient incorporated therein. The emollient is preferably a long chain ester or a silicon oil, and the beads containing the emollient are incorporated into dry powder cosmetic compositions, preferably together with talc or clay. The free-flowing dry powder characteristic is provided by the presence of from 2% up to about 20% of finely divided silica.
Inventors
- 👤 Wallace H. Brown
- 👤 John T. Vandeberg
- 👤 Maryam L. Dachniwskyj
- 👤 David Garlen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 17:18
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/124; A; A61; A61K; A61K8/00; A61K8/02; A61K8/14; A61K8/18; A61K8/19; A61K8/25; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1635; A61K9/1641; A61K9/1647; A61Q; A61Q1/00; A61Q1/12; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A dry, free-flowing powder composition comprising vesiculated beads of cross-linked resin, said beads containing an average of at least 2 thin-walled foraminous cells to provide communication between the vesicles within said bead and the , exterior of said beads to allow liquid to move into and out of said beads, said beads being substantially dry and containing an oily liquid, and there being present in said composition from 2% up to about 20% of finely divided silica to provide the free-flowing powder characteristic.
Claim 2
Dependent Claim
83 words
A dry, free-flowing powder composition comprising vesiculated beads of cross-linked resin, said beads containing an average of at least 2 thin-walled foraminous cells to provide communication between the vesicles within said bead and the , exterior of said beads to allow liquid to move into and out of said beads, said beads being substantially dry and containing an oily liquid, and there being present in said composition from 2% up to about 20% of finely divided silica to provide the free-flowing powder characteristic.
Claim 3
Dependent Claim
16 words
A dry powder as recited in claim 1 in which said silica is a fumed silica.
Claim 4
Dependent Claim
30 words
A dry powder as recited in claim 1 in which said silica is present in a weight ratio of finely divided silica to oily liquid of from 1:5 to 1:20.
Claim 5
Dependent Claim
37 words
A dry powder as recited in claim 1 in which at least some of said cell walls are discontinuous as determined by electron microscopy, and there are an average of at least 5 thin-walled cells per bead.
Claim 6
Dependent Claim
67 words
S. A dry powder as recited in claim 1 in which said beads are constituted by a carboxyl-functional unsaturated polyester resin cross-linked with an ethylenically unsaturated monomer copolymerizable therewith and have a ratio of granular diameter to mean vesicle diameter of at least 5:1, a vesicle volume of from 5% to 95% of the volume of the granule, and not more than about 60% pigment, by volume.
Claim 7
Dependent Claim
24 words
A dry powder as recited in claim 5 in which said polyester resin contains maleate unsaturation and is cross-linked with styrene or vinyl toluene.
Claim 8
Dependent Claim
48 words
A dry powder as recited in claim 1 in which said beads contain from about 10% up to about 65% of said oily liquid based on the weight of the oil-containing beads, and said oily liquid is selected from long chain esters, mineral oil and methyl-terminated polysiloxane oil.
Claim 9
Dependent Claim
32 words
A dry powder as recited in claim 1 in which said beads contain from about 20% up to about 55% of said oily liquid based on the weight of the oil-containing beads.
Claim 10
Dependent Claim
25 words
A dry powder composition as recited in claim 1 further comprising talc or clay in an amount of at least about 50% of the composition.
Claim 11
Dependent Claim
100 words
A dry, free-flowing powder cosmetic composition comprising vesiculated beads of cross-linked resin, said beads containing an average of at least 2 thin-walled foraminous cells to provide communication between the vesicles within said bead and the exterior of said beads to allow liquid to move into and out of said beads, said beads being substantially dry and containing an oily liquid, and there being present in said composition from 2% up to about 20% of fumed silica to provide the free-flowing powder characteristic, said silica being present in a weight ratio of silica to oily liquid of from 1:5 to 1:20.
Claim 12
Dependent Claim
100 words
A dry, free-flowing powder cosmetic composition comprising vesiculated beads of cross-linked resin, said beads containing an average of at least 2 thin-walled foraminous cells to provide communication between the vesicles within said bead and the exterior of said beads to allow liquid to move into and out of said beads, said beads being substantially dry and containing an oily liquid, and there being present in said composition from 2% up to about 20% of fumed silica to provide the free-flowing powder characteristic, said silica being present in a weight ratio of silica to oily liquid of from 1:5 to 1:20.
References Cited (Backward Citations)
No citation records indexed.
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