Patent EP0212870A2 successfully refreshed from Google Patents.
EP0212870A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Silicone polymer-coated powder or particulate material
Assignee: Shiseido Co Ltd
•
Filing: 1986-07-28
•
Granted: —
•
Expires: 2006-07-28
Abstract
Abstract A modified powder or particulate material coated on substantially the entire surface thereof with a film of a silicone polymer carrying a pendant group thereon, this powder or particulate material being produced by a process comprising the steps of (a) coating the powder or particulate material with a film of a silicone polymer having at least one Si-H moiety, and (b) carrying out an addition reaction of a compound capable of reacting with an Si-H moiety to the Si-H moiety in the silicone polymer of step (a), whereby the pendant group derived from said compound is bonded to the silicone polymer.
Inventors
- 👤 Hiroshi C/O Shiseido Laboratories Fukui
- 👤 Ryujiro C/O Shiseido Laboratories Namba
- 👤 Tsutomu C/O Shiseido Laboratories Saito
- 👤 Yutaka C/O Shiseido Laboratories Ohtsu
- 👤 Asa C/O Shiseido Laboratories Kimura
- 👤 Motokiyo C/O Shiseido Laboratories Nakano
- 👤 Okitsugu C/O Shiseido Laboratories Nakata
- 👤 Kenichi C/O Shiseido Laboratories Tomita
- 👤 Kazuo C/O Shiseido Laboratories Tokubo
- 👤 Kazuhisa C/O Shiseido Laboratories Ohno
- 👤 Toshio C/O Shiseido Laboratories Yoneyama
- 👤 Takashi C/O Shiseido Laboratories Ogawa
- 👤 Hideo C/O Shiseido Laboratories Morohoshi
- 👤 Junichi C/O Shiseido Laboratories Koyama
- 👤 Taketoshi C/O Shiseido Laboratories Kanda
- 👤 Kunihiro C/O Shiseido Laboratories Kawaguchi
- 👤 Yuzo C/O Shiseido Laboratories Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:15
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: 31
Claim 1
Independent Claim
101 words
A modified powder or particulate material coated on substantially the entire surface thereof with a film of a silicone polymer carrying a pendant group thereon, said powder or particulate material being produced by a process comprising the steps of (a) coating the powder or particulate material with a film of a silicone polymer having at least one Si-H moiety, and (b) carrying out an addition reaction of a compound capable of reacting with an Si-H moiety to the Si-H moiety in the silicone polymer of step (a), whereby the pendant group derived from said compound is bonded to the silicone polymer.
Claim 2
Dependent Claim
101 words
A modified powder or particulate material coated on substantially the entire surface thereof with a film of a silicone polymer carrying a pendant group thereon, said powder or particulate material being produced by a process comprising the steps of (a) coating the powder or particulate material with a film of a silicone polymer having at least one Si-H moiety, and (b) carrying out an addition reaction of a compound capable of reacting with an Si-H moiety to the Si-H moiety in the silicone polymer of step (a), whereby the pendant group derived from said compound is bonded to the silicone polymer.
Claim 3
Dependent Claim
40 words
A modified powder or particulate material as claimed in claim 1, wherein, in step (a), the powder or particulate material is coated with said film of said silicone polymer by using a silicone compound having at least one Si-H moiety.
Claim 4
Dependent Claim
165 words
A modified powder or particulate material as claimed in claim 2, wherein the silicone compound used in step (a) is a silicone compound having a general formula (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 a + b is an integer of 3 or more when c is zero, and the maximum value of a + b + c is 10,000.
Claim 5
Dependent Claim
57 words
A modified powder or particulate material as claimed in claim 2, wherein the silicone compound is brought into contact with the 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 to form said film of silicone polymer.
Claim 6
Dependent Claim
31 words
A modified powder or particulate material as claimed in claim 4, wherein the silicone compound in the form of a vapor is brought into contact with the powder or particulate material.
Claim 7
Dependent Claim
28 words
A modified powder or particulate material as claimed in claim 4, wherein the silicone polymer formed in step (a) has a weight-average molecular weight of more than 200,000.
Claim 8
Dependent Claim
52 words
A modified powder or particulate material as claimed in claim 5, wherein the silicone compound used in step (a) is a cyclic silicone compound having the general formula (I) in which a + b is 3 to 7 and c is zero, provided that the compound has at least two Si-H moieties.
Claim 9
Dependent Claim
63 words
A modified powder or particulate material as claimed in claim 5, wherein, in step (a), the silicone compound is brought into contact with the powder or particulate material 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 or particulate material.
Claim 10
Dependent Claim
33 words
A modified powder or particulate material as claimed in claim 8, wherein the silicone compound is brought into contact with the powder or particulate material under a pressure of 200 mmHg or less.
Claim 11
Dependent Claim
41 words
A modified powder or particulate material as claimed in claim 5, wherein, in step (a), the silicone compound is brought into contact with the powder or particulate material by feeding a gas mixture of the silicone compound and a carrier gas.
Claim 12
Dependent Claim
33 words
ll. A modified powder or particulate material as claimed in claim 10, wherein the silicone compound is brought into contact with the powder or particulate material at a temperature of 120°C or less.
Claim 13
Dependent Claim
33 words
A modified powder or particulate material as claimed in claim 2, wherein, in step (a), the silicone compound is dissolved in a solvent and brought into contact with the powder or particulate material.
Claim 14
Dependent Claim
34 words
A modified powder or particulate material as claimed in claim 2, wherein, in step (a), the silicone compound in the form of a liquid is brought into contact with the powder or particulate material.
Claim 15
Dependent Claim
17 words
A modified powder or particulate material as claimed in claim 13, wherein the contact is mechanochemically effected.
Claim 16
Dependent Claim
48 words
A modified powder or particulate material as claimed in claim 1, wherein, in step (a), the powder or particulate material is coated with said film of silicone polymer having Si-H moieties in an amount of 1% or more of the total Si atoms contained in the silicone polymer.
Claim 17
Dependent Claim
33 words
A modified powder or particulate material as claimed in claim 1, wherein said compound used in step (b) is an unsaturated hydrocarbon compound or a compound having an OH group or SH group.
Claim 18
Dependent Claim
92 words
A modified powder or particulate material as claimed in claim 16, wherein the unsaturated hydrocarbon compound is a compound having the general formula (V): wherein R 11 , R , R 13 , and R 14 represent, independently, hydrogen, halogen, hydroxyl, mercapto, acyloxy, alkoxy, amino, nitro, carboxyl, sulfo, or an unsubstituted or substituted hydrocarbon residue having 1 to 30 carbon atoms, or R 11 and R 13 may represent a single bond to thereby from -C=C-, or R 12 and R 14 may form, together with -C= C -, an alicyclic ring.
Claim 19
Dependent Claim
18 words
A modified powder or particulate material as claimed in claim 1, wherein said material is an inorganic pigment.
Claim 20
Dependent Claim
20 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a metallic oxide or hydroxide.
Claim 21
Dependent Claim
17 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a mica.
Claim 22
Dependent Claim
18 words
A modified powder or particulate material as claimed in claim 1, wherein said material is an organic pigment.
Claim 23
Dependent Claim
18 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a pearling pigment.
Claim 24
Dependent Claim
18 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a mineral silicate.
Claim 25
Dependent Claim
18 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a porous material.
Claim 26
Dependent Claim
17 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a carbon.
Claim 27
Dependent Claim
17 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a metal.
Claim 28
Dependent Claim
20 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a composite powder or particulate.
Claim 29
Dependent Claim
17 words
A modified powder or particulate material as claimed in claim 1, wherein said material is a biopolymer.
Claim 30
Dependent Claim
13 words
A cosmetic composition comprising a modified powder or particulate material of claim 1.
Claim 31
Dependent Claim
13 words
A coating composition comprising a modified powder or particulate material of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.