US4713295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of modifying the wettability of glass beads, glass beads polymeric material incorporating such glass beads, and method of applying reflective markings to a surface
Assignee: AGC Glass Europe SA
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Filing: 1986-03-26
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Granted: 1987-12-15
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Expires: 2006-03-26
Abstract
Abstract This invention relates to coating glass beads with a mixture of substances which mixture comprises a first substance which if used alone would tend to make the beads hydrophobic while leaving them oleophilic and as second substance which if used alone would tend to make the beads both hydrophobic and oleophobic. Said coated beads maybe used in a synthetic polymeric matrix, as a coating over paint and as a coating on a road surface.
Inventors
- 👤 Pierre Laroche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:08
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/28; C09C1/30; C09C1/309; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C09C1/3063; C09C1/3081; C09C3/00; C09C3/006; C09C3/08; C09C3/12; E; E01; E01F; E01F9/00; E01F9/50; E01F9/506; E01F9/524; C01; C01P; C01P2002/00; C01P2002/02; C01P2006/00; C01P2006/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/2998
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
89 words
A method of regulating the wettability of glass beads, comprising: coating glass beads with a mixture of substances which mixture comprises a first substance which if used alone would tend to make the beads hydrophobic while leaving them oleophilic and a second substance which if used alone would tend to make the beads both hydrophobic and oleophobic; said first and second substances being present in a proportion effective to attain a desired degree of wettability or bonding to a medium with which said coated beads are to be admixed.
Claim 2
Independent Claim
89 words
A method of regulating the wettability of glass beads, comprising: coating glass beads with a mixture of substances which mixture comprises a first substance which if used alone would tend to make the beads hydrophobic while leaving them oleophilic and a second substance which if used alone would tend to make the beads both hydrophobic and oleophobic; said first and second substances being present in a proportion effective to attain a desired degree of wettability or bonding to a medium with which said coated beads are to be admixed.
Claim 3
Dependent Claim
13 words
A method according to claim 1, wherein said first substance comprises a silane.
Claim 4
Dependent Claim
17 words
A method according to claim 2, wherein said silane is selected from γ-methacryloxypropyltrimethoxysilane, γ-aminopropyltriethoxysilane, phenyltrimethoxysilane, and methyltrimethoxysilane.
Claim 5
Dependent Claim
14 words
A method according to claim 1, wherein said second substance is a fluorocarbon compound.
Claim 6
Dependent Claim
15 words
A method according to claim 4, wherein said second substance is an anionic fluorocarbon compound.
Claim 7
Dependent Claim
13 words
A method according to claim 5, wherein said second substance is a fluoro-alkyl-sulphonate.
Claim 8
Dependent Claim
28 words
A method according to claim 1, wherein said mixture contains at least twice as much by weight of said second substance as it does of said first substance.
Claim 9
Dependent Claim
10 words
Glass beads treated by a method according to claim 1.
Claim 10
Dependent Claim
79 words
A glass bead coated with a mixture of substances comprising a first substance which if present alone would tend to make the bead hydrophobic while leaving it oleophilic and a second substance which if present alone would tend to make the bead both hydrophobic and oleophobic; said first and said second substance being present in a proportion effective to attain a desired degree of wettability or bonding to a medium with which said coated beads are to be admixed.
Claim 11
Dependent Claim
79 words
A glass bead coated with a mixture of substances comprising a first substance which if present alone would tend to make the bead hydrophobic while leaving it oleophilic and a second substance which if present alone would tend to make the bead both hydrophobic and oleophobic; said first and said second substance being present in a proportion effective to attain a desired degree of wettability or bonding to a medium with which said coated beads are to be admixed.
Claim 12
Dependent Claim
13 words
A bead according to claim 9, wherein said first substance comprises a silane.
Claim 13
Dependent Claim
17 words
A bead according to claim 10, wherein said silane is selected from γ-methacryloxypropyltrimethoxysilane, γ-aminopropyltriethoxysilane, phenyltrimethoxysilane, and methyltrimethoxysilane.
Claim 14
Dependent Claim
14 words
A bead according to claim 9, wherein said second substance is a fluorocarbon compound.
Claim 15
Dependent Claim
15 words
A bead according to claim 12, wherein said second substance is an anionic fluorocarbon compound.
Claim 16
Dependent Claim
13 words
A bead according to claim 13, wherein said second substance is a fluoro-alkyl-sulphonate.
Claim 17
Dependent Claim
28 words
A bead according to claim 9, wherein said coating contains at least twice as much by weight of said second substance as it does of said first substance.
Claim 18
Dependent Claim
11 words
A synthetic polymeric matrix, comprising: glass beads according to claim 9.
Claim 19
Dependent Claim
22 words
A synthetic polymeric matrix according to claim 16, wherein such matrix incorporates at least two batches of beads having different surface properties.
Claim 20
Dependent Claim
14 words
A synthetic polymeric matrix according to claim 16, wherein such matrix is a paint.
Claim 21
Dependent Claim
46 words
A method of applying a reflective marking to a surface, comprising: applying paint to an area to be marked and then distributing over the painted area while the paint is still wet, glass beads at least some of which are glass beads according to claim 9.
Claim 22
Dependent Claim
24 words
A method according to claim 19, wherein the distributed beads are a mixture of at least two batches of beads having different surface properties.
Claim 23
Dependent Claim
18 words
A method according to claim 19, wherein said reflective marking is applied to a surface of a road.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |