US5968652A
Expired / Lapsed
US
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Silane coated particle
Assignee: 3M Innovative Properties Co
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Filing: 1998-11-10
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Granted: 1999-10-19
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Expires: 2018-11-10
Abstract
Abstract The present invention encompasses novel coated particles that are well suited for use as absorption media in chromatographic processes. The coated particles comprise a substrate, such as aluminum, silicon, titanium or zirconium oxide particles, containing polymerized silane moieties on a surface of the substrate. The silane moieties include two or three olefinic groups as well as at least on useful ligand. Methods of preparing these coated particles are also described.
Inventors
- 👤 Douglas A. Hanggi
- 👤 Gaddam N. Babu
- 👤 Terry L. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/286; B01J20/282; B01J20/283; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3214; B01J20/3217; B01J20/3219; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3257; B01J20/3261; B01J20/3268; B01J20/3276; B01J20/3291; B01J20/3293; C; C08; C08F; C08F292/00; B01J2220/00; B01J2220/50; B01J2220/54; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/2996
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
64 words
A coated particle comprising a substrate having a surface in contact with a polymerization product of a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3. inclusive, and (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 2
Dependent Claim
64 words
A coated particle comprising a substrate having a surface in contact with a polymerization product of a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3. inclusive, and (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 3
Dependent Claim
27 words
The coated particle of claim 1 wherein the substrate comprises Al 2 O 3 , SiO 2 , TiO 2 , ZrO 2 , or combinations thereof.
Claim 4
Dependent Claim
23 words
The coated particle of claim 1 wherein the substrate has a diameter in the range from about 0.1 micrometer to about 500 micrometers.
Claim 5
Dependent Claim
20 words
The coated particle of claim 1 wherein the substrate has a diameter from about 0.1 micrometer to about 20 micrometers.
Claim 6
Dependent Claim
31 words
The coated particle of claim 1 wherein the silane comprises three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3, inclusive.
Claim 7
Dependent Claim
32 words
The coated particle of claim 1 wherein the ligand comprises a hydrogen, a halogen, an alkoxy group, an aryl group, a derivatized aryl group, an alkyl group, or a derivatized alkyl group.
Claim 8
Dependent Claim
22 words
The coated particle of claim 1 wherein at least one of the olefinic groups has the formula --CH 2 CH═CH 2 .
Claim 9
Dependent Claim
20 words
The coated particle of claim 1 wherein at least one of the olefinic groups has the formula --CH═CH 2 .
Claim 10
Dependent Claim
21 words
The coated particle of claim 1 wherein the silane is selected from the group consisting of triallyloctadecylsilane, trivinyloctadecylsilane, triallyoctylsilane, and trivinyloctylsilane.
Claim 11
Dependent Claim
27 words
The coated particle of claim 9 wherein the substrate comprises Al 2 O 3 , SiO 2 , TiO 2 , ZrO 2 , or combinations thereof.
Claim 12
Dependent Claim
66 words
A coated particle comprising a substrate having a surface in contact with a polymerization product of a trihydrosilane and a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3, inclusive, (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 13
Dependent Claim
66 words
A coated particle comprising a substrate having a surface in contact with a polymerization product of a trihydrosilane and a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3, inclusive, (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 14
Dependent Claim
12 words
An article comprising the coated particles of claim 11 in a binder.
Claim 15
Dependent Claim
11 words
The article of claim 12 wherein the article is a coating.
Claim 16
Dependent Claim
73 words
An article comprising coated particles in a binder wherein the coated particles comprise a substrate having a surface in contact with a polymerization product of a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3, inclusive, and (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 17
Dependent Claim
73 words
An article comprising coated particles in a binder wherein the coated particles comprise a substrate having a surface in contact with a polymerization product of a silane comprising (a) two or three olefinic groups having the formula --(CH 2 ) m CH═CH 2 , where m is between 0 and 3, inclusive, and (b) at least one ligand, wherein the polymerization product comprises a carbosilane backbone that is essentially free of siloxane linkages.
Claim 18
Dependent Claim
11 words
The article of claim 14 wherein the article is a coating.
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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) | 2002-10-18 | 2003-04-19 | 2003-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-18 | 2007-04-19 | 2007-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-18 | 2011-04-19 | 2011-10-19 | $7700.00 | Window Closed / Lapsed |