US4282281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long-lived heavy-duty pavement marking
Assignee: 3M Co
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Filing: 1979-11-02
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Granted: 1981-08-04
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Expires: 1999-11-02
Abstract
Abstract Longer-lived pavement markings are provided by adhering to the pavement a sheet material about one-fourth millimeter or more thick that comprises a carboxyl-modified acrylonitrile-butadiene polymer and particulate fillers dispersed in the polymer.
Inventors
- 👤 John L. Ethen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:14
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/506; E01F9/512; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/25; Y10T428/252; Y10T428/26; Y10T428/266; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/31504; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
66 words
Pavement-marking sheet material comprising (a) a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and (ii) particulate fillers dispersed in mixture with the polymer, and (b) glass microspheres dispersed within the polymer-based sheet.
Claim 2
Dependent Claim
66 words
Pavement-marking sheet material comprising (a) a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and (ii) particulate fillers dispersed in mixture with the polymer, and (b) glass microspheres dispersed within the polymer-based sheet.
Claim 3
Dependent Claim
34 words
Pavement-marking sheet material of claim 1 which includes coupling agents at the interface between the microspheres and the polymer-based sheet, said coupling agents comprising molecules that have an inorganophilic portion and an organophilic portion.
Claim 4
Dependent Claim
14 words
Pavement-marking sheet material of claim 2 in which said coupling agent is an aminosilane.
Claim 5
Dependent Claim
17 words
Pavement-marking sheet material of claim 1 that further includes chlorinated paraffin in mixture with the acrylonitrile-butadiene polymer.
Claim 6
Dependent Claim
34 words
Pavement-marking sheet material of claim 1 which includes a thin support film adhered to one surface of the polymer-based sheet, and glass microspheres partially embedded in and partially protruding out of the support film.
Claim 7
Dependent Claim
71 words
Pavement-marking sheet material comprising (a) a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and (ii) particulate fillers dispersed in mixture with the polymer, and (b) glass microspheres partially protruding from the top surface of the sheet material.
Claim 8
Dependent Claim
71 words
Pavement-marking sheet material comprising (a) a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and (ii) particulate fillers dispersed in mixture with the polymer, and (b) glass microspheres partially protruding from the top surface of the sheet material.
Claim 9
Dependent Claim
32 words
Sheet material of claim 6 which includes a support film adhered to the polymer-based sheet, said layer of glass microspheres being partially embedded in and partially protruding out of the support film.
Claim 10
Dependent Claim
76 words
Pavement-marking sheet material comprising a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 10 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, (ii) chlorinated paraffin, and (iii) particulate fillers and glass microspheres dispersed in mixture with the polymer, there being a coupling agent at the interface between the glass microspheres and polymer.
Claim 11
Dependent Claim
76 words
Pavement-marking sheet material comprising a polymer-based sheet that is about one-fourth millimeter or more thick and that comprises (i) at least 10 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, (ii) chlorinated paraffin, and (iii) particulate fillers and glass microspheres dispersed in mixture with the polymer, there being a coupling agent at the interface between the glass microspheres and polymer.
Claim 12
Dependent Claim
34 words
Pavement-marking sheet material of claim 8 which includes a thin support film adhered to one surface of the polymer-based sheet, and glass microspheres partially embedded in and partially protruding out of the support film.
Claim 13
Independent Claim
53 words
A method for marking a paved surface comprising adhering to the roadway a polymer-based sheet that comprises at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and particulate fillers dispersed in mixture with the polymer.
Claim 14
Independent Claim
53 words
A method for marking a paved surface comprising adhering to the roadway a polymer-based sheet that comprises at least 8 weight-percent of an unvulcanized acrylonitrile-butadiene polymer carrying carboxyl groups in an amount of at least 2 weight-percent based on the weight of the polymer, and particulate fillers dispersed in mixture with the polymer.
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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |