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US4801445A Expired / Lapsed US ⏱️ 0.0 years remaining

Cosmetic compositions containing modified powder or particulate material

Assignee: Sheiseido Co Ltd
•
Filing: 1986-06-17
•
Granted: 1989-01-31
•
Expires: 2006-06-17
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Abstract

Abstract A modified powder or particulate material having a silicone polymer film coated on substantially the entire surface thereof, this powder or particulate material being produced by bringing at least one silicone compound, in the form of a vapor, having the general formula (I): (R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO 1/2 ) c (I) wherein R 1 , R 2 , and R 3 represent, independently, hydrogen or a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, provided that R 1 , R 2 , and R 3 are not hydrogen at the same time, R 4 , R 5 , and R 6 represent, independently, hydrogen or a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, a is zero or an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that c is 2 when a and b are simultaneously zero and a+b is an integer of 3 or more when c is zero, into contact with a powder or particulate material having an active site on the surface thereof, whereby the silicone compound is polymerized on substantially the entire surface of the powder or particulate material.

Inventors

  • 👤 Hiroshi Fukui
  • 👤 Ryujiro Namba
  • 👤 Tsutomu Saito
  • 👤 Yutaka Ohtsu
  • 👤 Asa Kimura
  • 👤 Motokiyo Nakano
  • 👤 Okitsugu Nakata
  • 👤 Kenichi Tomita
  • 👤 Kazuo Tokubo
  • 👤 Kazuhisa Ohno
  • 👤 Toshio Yoneyama
  • 👤 Takashi Ogawa
  • 👤 Hideo Morohoshi
  • 👤 Junichi Koyama
  • 👤 Taketoshi Kanda
  • 👤 Kunihiro Kawaguchi
  • 👤 Yuzo Shimizu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 11:23
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61K8/18; A61K8/19; A61K8/25; A61K8/26; A61K8/29; A61K8/30; A61K8/58; A61K8/585; A61K8/72; A61K8/84; A61K8/89; A61K8/891; A61Q; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q1/10; A61Q1/12; A61Q17/00; A61Q17/04; A61Q3/00; A61Q3/02; C; C01; C01B; C01B13/00; C01B13/14; C01B13/145; C01B32/00; C01B32/30; C01B32/354; C01B32/372; C01B39/00; C01B39/02; C01B39/026; C09; C09B; C09B67/00; C09B67/0001; C09B67/0004; C09B67/0008; C09B67/0013; C09C; C09C3/00; C09C3/12; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/712; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2002/80; C01P2002/82; C01P2002/87; C01P2004/00; C01P2004/01; C01P2004/03; C01P2006/00; C01P2006/60; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/2998

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 256 words
In a cosmetic composition comprising a cosmetic base and a powder, the improvement wherein such powder comprises a modified powder having a silicone polymer film coated on substantailly the entire surface thereof, said powder being produced by bringing at least one silicone compound, in the form of vapor, having the general formula (I): (R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I) wherein R 1 , R 2 , and R 3 represent, independently, hydrogen, a hydrocarbon residue having 1 to 10 carbon atoms or a hydrocarbon residue having 1 to 10 carbon atoms and substituted with at least one halogen atom, provided that R 1 , R 2 , R 3 are not hydrogen at the same time, R 4 , R 5 , and R 6 represent, independently, hydrogen, a hydrocarbon residue having 1 to 10 carbon atoms or a hydrocarbon residue having 1 to 10 carbon atoms and substituted with at least one halogen atom, a is zero or an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that c is 2 when a and b are simultaneously zero and a +b is an integer of 3 or more when c is zero, into contact with the powder having on the usrface thereof an active site capable of catalytically polymerizing a silicone compound having a siloxane bond (Si-O-Si) or a hydrosilyl group (Si H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
Claim 2
Dependent Claim 256 words
In a cosmetic composition comprising a cosmetic base and a powder, the improvement wherein such powder comprises a modified powder having a silicone polymer film coated on substantailly the entire surface thereof, said powder being produced by bringing at least one silicone compound, in the form of vapor, having the general formula (I): (R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I) wherein R 1 , R 2 , and R 3 represent, independently, hydrogen, a hydrocarbon residue having 1 to 10 carbon atoms or a hydrocarbon residue having 1 to 10 carbon atoms and substituted with at least one halogen atom, provided that R 1 , R 2 , R 3 are not hydrogen at the same time, R 4 , R 5 , and R 6 represent, independently, hydrogen, a hydrocarbon residue having 1 to 10 carbon atoms or a hydrocarbon residue having 1 to 10 carbon atoms and substituted with at least one halogen atom, a is zero or an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that c is 2 when a and b are simultaneously zero and a +b is an integer of 3 or more when c is zero, into contact with the powder having on the usrface thereof an active site capable of catalytically polymerizing a silicone compound having a siloxane bond (Si-O-Si) or a hydrosilyl group (Si H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
Claim 3
Dependent Claim 21 words
A composition as claimed in claim 1, wherein the silicone polymer film has a weight-average molecular weight of more than 200,000.
Claim 4
Dependent Claim 43 words
A composition as claimed in claim 1, wherein the silicone polymer film has a network structure having a ##STR15## unit derived from the polymerization of Si-H moieties in amount of 20% or more of the total Si atoms contained in the polymer film.
Claim 5
Dependent Claim 32 words
A composition as claimed in claim 1, the silicone compound is a cyclic silicone compound having the general formula in which a is 3 to 7 and b and c are zero.
Claim 6
Dependent Claim 19 words
A composition as claimed in claim 1, wherein the thickness of the silicone polymer film is 3 to 20Å.
Claim 7
Dependent Claim 59 words
A composition as claimed in claim 1, wherein the silicone compound is brought into contact with the powder having the active sites on the surface thereof at a temperature of 120° C. or less in a closed chamber in such a manner that the vaporized silicone compound is deposited under a molecular state on the surface of the powder.
Claim 8
Dependent Claim 25 words
A composition as claimed in claim 6, wherein the silicone compound is brought into contact with the powder under a of 200 mmHg or less.
Claim 9
Dependent Claim 40 words
A composition as claimed in claim 1, wherein the silicone compound is brought into contact with the powder having the active sites on the surface thereof by feeding a gas mixture of the silicone compound (I) and a carrier gas.
Claim 10
Dependent Claim 26 words
A composition as claimed in claim 8, wherein the silicone compound is brought into contact with the powder at a temperature of 120° C. or less.
Claim 11
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is an inorganic pigment.
Claim 12
Dependent Claim 15 words
A compostion as claimed in claim 1, said powder is a metallic oxide or hydroxide.
Claim 13
Dependent Claim 13 words
A composition as claimed in claim 1, wherein said powder is a mica.
Claim 14
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is an organic pigment.
Claim 15
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is a pearlescent pigment.
Claim 16
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is a mineral silicate.
Claim 17
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is a porous material.
Claim 18
Dependent Claim 13 words
a composition as claimed in claim 1, werein said powder is a carbon.
Claim 19
Dependent Claim 13 words
A composition as claimed in claim 1, wherein said powder is a metal.
Claim 20
Dependent Claim 14 words
A composition as claimed in claim 1, wherein said powder is a composite powder.
Claim 21
Dependent Claim 27 words
A composition according to claim 1, wherein silicone polymer film has a weight-average molecular weight of more than 200,000 and its thickness is 3 to 20 Å.
Claim 22
Dependent Claim 36 words
A composition according to claim 1, wherein the powder is an inorganic pigment, metallic oxide or hydroxide, a mica, an organic pigment, a pearlescent pigment, a mineral silicate, a carbon, a metal or a composite powder.

References Cited (Backward Citations)

US3649321A Cited
US3920865A Cited
US3849152A Cited
US4034139A Cited
US4062693A Cited
US4151154A Cited
US4191587A Cited
US4394469A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-01-31 1992-08-01 1993-01-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-01-31 1996-08-01 1997-01-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-01-31 2000-08-01 2001-01-31 $7700.00 Window Closed / Lapsed

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