US4882225A
Expired / Lapsed
US
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Modified powder or particulate material
Assignee: Shiseido Co Ltd
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Filing: 1988-04-26
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Granted: 1989-11-21
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Expires: 2008-04-26
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, p rovided 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 Tommita
- 👤 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
2026-10-24 20:44
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/712; A; A61; A61K; A61K8/00; A61K8/02; A61K8/0241; 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; A61Q19/00; 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; A61K2800/00; A61K2800/10; A61K2800/40; A61K2800/41; A61K2800/412; A61K2800/60; A61K2800/61; A61K2800/62; A61K2800/624; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q1/10; A61Q1/12; A61Q17/00; A61Q17/04; A61Q3/00; A61Q3/02; 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
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
219 words
A modified powder having a silicone polymer film coated on substantially 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 an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that a+b is an integer of 3 or more when c is zero, into contact with a powder having on the surface thereof an active site capable of catalytically polymerizing a silicone compound having a hydrosilyl group (Si--H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
Claim 2
Dependent Claim
219 words
A modified powder having a silicone polymer film coated on substantially 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 an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that a+b is an integer of 3 or more when c is zero, into contact with a powder having on the surface thereof an active site capable of catalytically polymerizing a silicone compound having a hydrosilyl group (Si--H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
Claim 3
Dependent Claim
22 words
A modified powder 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
45 words
A modified powder 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 an amount of 20% or more of the total Si atoms contained in the polymer film.
Claim 5
Dependent Claim
34 words
A modified powder as claimed in claim 1, wherein the silicone compound is a cyclic silicone compound and wherein a is 3 to 7 and b and c are zero in general Formula (I).
Claim 6
Dependent Claim
21 words
A modified powder as claimed in claim 1, wherein the thickness of the silicone polymer film is 3 to 20 Å.
Claim 7
Dependent Claim
60 words
A modified powder 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
27 words
A modified powder as claimed in claim 6, wherein the silicone compound is brought into contact with the powder under a pressure of 200 mmHg or less.
Claim 9
Dependent Claim
41 words
A modified powder 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
27 words
A modified powder 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
15 words
A modified powder as claimed in claim 1, wherein said powder is an inorganic pigment.
Claim 12
Dependent Claim
17 words
A modified powder as claimed in claim 1, wherein said powder is a metallic oxide or hydroxide.
Claim 13
Dependent Claim
14 words
A modified powder as claimed in claim 1, wherein said powder is a mica.
Claim 14
Dependent Claim
15 words
A modified powder as claimed in claim 1, wherein said powder is an organic pigment.
Claim 15
Dependent Claim
15 words
A modified powder as claimed in claim 1, wherein said powder is a pearlescent pigment.
Claim 16
Dependent Claim
15 words
A modified powder as claimed in claim 1, wherein said powder is a mineral silicate.
Claim 17
Dependent Claim
15 words
A modified powder as claimed in claim 1, wherein said powder is a porous material.
Claim 18
Dependent Claim
14 words
A modified powder as claimed in claim 1, wherein said powder is a carbon.
Claim 19
Dependent Claim
14 words
A modified powder as claimed in claim 1, wherein said powder is a metal.
Claim 20
Dependent Claim
15 words
A modified powder as claimed in claim 1, wherein said powder is a composite powder.
Claim 21
Independent Claim
219 words
A method of making a modified powder having a silicone polymer film coated on substantially the entire surface thereof, comprising 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 an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that a+b is an integer of 3 or more when c is zero, into contact with a powder having on the surface thereof an active site capable of catalytically polymerizing a silicone compound having a hydrosilyl group (Si--H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
Claim 22
Independent Claim
219 words
A method of making a modified powder having a silicone polymer film coated on substantially the entire surface thereof, comprising 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 an integer of 1 or more, b is zero or an integer of 1 or more, and c is zero or 2, provided that a+b is an integer of 3 or more when c is zero, into contact with a powder having on the surface thereof an active site capable of catalytically polymerizing a silicone compound having a hydrosilyl group (Si--H), whereby the silicone compound is polymerized on substantially the entire surface of the powder.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |