US4175978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road pavement and repair
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1977-03-17
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Granted: 1979-11-27
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Expires: 1997-03-17
Abstract
Abstract The use of flake glass in road pavement and repair is disclosed. In particular, we disclose improvements in the formulations of asphalt aggregate wear surfaces, substrate layers and interface layers between the substrate and wear surfaces. In one embodiment we also employ an unsaturated monomer or an unsaturated elastomer.
Inventors
- 👤 Alfred Marzocchi
- 👤 Michael G. Roberts
- 👤 Charles E. Bolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:47
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/08; E01D19/083; C; C08; C08L; C08L95/00; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/10; E01C11/103; E01C11/16; E01C11/165; E01C7/00; E01C7/08; E01C7/18; E01C7/182; E01C7/26; E01C7/265; E01C7/32; E01C7/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
68 words
An upper surface wear course for a road pavement consisting essentially of (a) at least 90% by weight of a stone aggregate and (b) the balance of an organic matrix consisting essentially of (1) an asphalt and (2) flake glass particles, said flake glass particles being interspersed with the asphalt and uniformly distributed therein and the stone aggregate being dispersed in a continuous phase of the organic matrix.
Claim 2
Dependent Claim
68 words
An upper surface wear course for a road pavement consisting essentially of (a) at least 90% by weight of a stone aggregate and (b) the balance of an organic matrix consisting essentially of (1) an asphalt and (2) flake glass particles, said flake glass particles being interspersed with the asphalt and uniformly distributed therein and the stone aggregate being dispersed in a continuous phase of the organic matrix.
Claim 3
Dependent Claim
25 words
The wear course as claimed in claim 1 wherein the flake glass particles range from 0.5% to 80% by weight based on the organic matrix.
Claim 4
Dependent Claim
36 words
The wear course as claimed in claim 2 in which the particles of glass flake range in individual thickness from 0.0003 to 0.0004 inch and have an average length each of from 0.035 to 0.2 inch.
Claim 5
Dependent Claim
29 words
The wear course as claimed in claim 3 wherein the glass flake has a surface treatment of a silane coupling agent capable of providing adhesion to the organic phase.
Claim 6
Dependent Claim
16 words
The wear course as claimed in claim 4 in which said asphalt is a blown asphalt.
Claim 7
Dependent Claim
25 words
The wear course as claimed in claim 5 in which the blown asphalt has been reacted with an unsaturated monomer by a free radical mechanism.
Claim 8
Dependent Claim
16 words
The wear course as claimed in claim 6 in which the monomer is a styrene monomer.
Claim 9
Dependent Claim
18 words
The wear course as claimed in claim 7 wherein the asphalt has been reacted with an unsaturated elastomer.
Claim 10
Dependent Claim
17 words
The wear course as claimed in claim 8 in which the unsaturated elastomer is styrene butadiene rubber.
Claim 11
Dependent Claim
35 words
An asphalt road paving composition consisting essentially of (a) stone aggregate and (b) a uniformly dispersed organic matrix of (1) an asphalt, (2) flake glass, (3) an unsaturated elastomer and (4) a vinyl-substituted aromatic compound.
Claim 12
Dependent Claim
35 words
An asphalt road paving composition consisting essentially of (a) stone aggregate and (b) a uniformly dispersed organic matrix of (1) an asphalt, (2) flake glass, (3) an unsaturated elastomer and (4) a vinyl-substituted aromatic compound.
Claim 13
Dependent Claim
20 words
A composition according to claim 10 wherein the unsaturated elastomer is an SBR rubber and the aromatic compound is styrene.
Claim 14
Dependent Claim
30 words
A bituminous composition for filling cracks in road pavements consisting essentially of (1) asphalt, (2) 0.5 to 10% flake glass, (3) a vinyl aromatic monomer and (4) an unsaturated elastomer.
Claim 15
Dependent Claim
30 words
A bituminous composition for filling cracks in road pavements consisting essentially of (1) asphalt, (2) 0.5 to 10% flake glass, (3) a vinyl aromatic monomer and (4) an unsaturated elastomer.
Claim 16
Dependent Claim
24 words
The composition as claimed in claim 12 wherein the asphalt is modified with 0.1 to 35.0% styrene monomer and 0.1 to 5.0% butadiene rubber.
Claim 17
Dependent Claim
30 words
The composition as claimed in claim 12 wherein the glass flake has a thickness ranging from 0.0003 to 0.0004 inch and an average individual size of 0.03 to 0.2 inch.
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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) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |