US4738723A
Expired / Lapsed
US
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Asbestos-free asphalt composition
Assignee: Gulf State Asphalt Co
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Filing: 1985-05-29
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Granted: 1988-04-19
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Expires: 2005-05-29
Abstract
Abstract Disclosed is a new and improved sealant and cement asphalt composition that is asbestos-free. The asbestos-free asphalt composition comprises about 40 to about 70 weight percent asphalt, about 5 to about 40 weight percent mineral filler, about 2 to about 10 weight percent cellulose fibers and about 2 to about 20 weight percent of a water-containing material such as an acrylic latex emulsion, asphalt emulsion or aqueous surfactant solution.
Inventors
- 👤 Chris Frizzell
- 👤 William L. Adams
- 👤 Robert Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:17
CPC Classifications
C; C08; C08L; C08L95/00; C04; C04B; C04B26/00; C04B26/02; C04B26/26; C09; C09K; C09K3/00; C09K3/10; C09K3/1025; C09K3/1028; C04B2103/00; C04B2103/40; C09K2200/00; C09K2200/02; C09K2200/0243; C09K2200/0252; C09K2200/0256; C09K2200/026; C09K2200/06; C09K2200/0615; C09K2200/0617; C09K2200/0625; C09K2200/0632; C09K2200/0692; C09K2200/0697; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
70 words
An asbestos-free asphalt composition, consisting essentially of: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; between about 2 and about 10 weight percent cellulose fibers; and between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
Claim 2
Dependent Claim
70 words
An asbestos-free asphalt composition, consisting essentially of: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; between about 2 and about 10 weight percent cellulose fibers; and between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
Claim 3
Dependent Claim
46 words
The composition of claim 1, wherein the asphalt is present in the composition in the form of an asphalt cutback, said asphalt cutback comprising: between about 50 and about 85 weight percent asphalt; and between about 15 and about 50 weight percent solvent for said asphalt.
Claim 4
Dependent Claim
12 words
The composition of claim 1, wherein the mineral filler is Kaolin clay.
Claim 5
Dependent Claim
12 words
The composition of claim 1, wherein the mineral filler is calcium carbonate.
Claim 6
Dependent Claim
14 words
The composition of claim 1, wherein the water-containing material is an acrylic latex emulsion.
Claim 7
Dependent Claim
21 words
The composition of claim 5, wherein the acrylic latex emulsion comprises between about 5.0 and 20.0 weight percent of the composition.
Claim 8
Dependent Claim
13 words
The composition of claim 1, wherein the water-containing material is a styrene-butadiene copolymer.
Claim 9
Dependent Claim
13 words
The composition of claim 1, wherein the water-containing material is an asphalt emulsion.
Claim 10
Dependent Claim
21 words
The composition of claim 8, wherein the asphalt emulsion comprises between about 5.0 and about 20.0 weight percent of the composition.
Claim 11
Dependent Claim
14 words
The composition of claim 1, wherein the water-containing material is an aqueous surfactant solution.
Claim 12
Dependent Claim
37 words
The composition of claim 10, wherein the aqueous surfactant solution comprises between about 1.0 and about 7.0 weight percent of the composition and the surfactant comprises between about 0.1 and about 0.7 weight percent of the composition.
Claim 13
Dependent Claim
49 words
An asbestos-free asphalt composition, consisting essentially of: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; and between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
Claim 14
Dependent Claim
49 words
An asbestos-free asphalt composition, consisting essentially of: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; and between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
Claim 15
Dependent Claim
86 words
A process for preparing an asbestos-free asphalt composition, consisting essentially of: soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition; mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler; and mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
Claim 16
Dependent Claim
86 words
A process for preparing an asbestos-free asphalt composition, consisting essentially of: soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition; mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler; and mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
Claim 17
Dependent Claim
77 words
An asphalt composition which is free of asbestos and highly structured carbon black, comprising: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; between about 2 and about 10 weight percent cellulose fibers; and between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
Claim 18
Dependent Claim
77 words
An asphalt composition which is free of asbestos and highly structured carbon black, comprising: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; between about 2 and about 10 weight percent cellulose fibers; and between about 2 and about 20 weight percent of a water-containing material selected from the group consisting of an acrylic latex emulsion, a styrene-butadiene copolymer, an asphalt emulsion and an aqueous surfactant solution.
Claim 19
Dependent Claim
46 words
The composition of claim 14, wherein the asphalt is present in the composition in the form of an asphalt cutback, said asphalt cutback comprising: between about 50 and about 85 weight percent asphalt; and between about 15 and about 50 weight percent solvent for said asphalt.
Claim 20
Dependent Claim
12 words
The composition of claim 14, wherein the mineral filler is Kaolin clay.
Claim 21
Dependent Claim
12 words
The composition of claim 14, wherein the mineral filler is calcium carbonate.
Claim 22
Dependent Claim
14 words
The composition of claim 14, wherein the water-containing material is an acrylic latex emulsion.
Claim 23
Dependent Claim
21 words
The composition of claim 18, wherein the acrylic latex emulsion comprises between about 5.0 and 20.0 weight percent of the composition.
Claim 24
Dependent Claim
13 words
The composition of claim 14, wherein the water-containing material is a styrene-butadiene copolymer.
Claim 25
Dependent Claim
13 words
The composition of claim 14, wherein the water-containing material is an asphalt emulsion.
Claim 26
Dependent Claim
21 words
The composition of claim 21, wherein the asphalt emulsion comprises between about 5.0 and about 20.0 weight percent of the composition.
Claim 27
Dependent Claim
14 words
The composition of claim 14, wherein the water-containing material is an aqueous surfactant solution.
Claim 28
Dependent Claim
37 words
The composition of claim 23, wherein the aqueous surfactant solution comprises between about 1.0 and about 7.0 weight percent of the composition and the surfactant comprises between about 0.1 and about 0.7 weight percent of the composition.
Claim 29
Dependent Claim
56 words
An asphalt composition which is free of asbestos and highly structured carbon black, comprising: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; and between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
Claim 30
Dependent Claim
56 words
An asphalt composition which is free of asbestos and highly structured carbon black, comprising: between about 40 and about 70 weight percent asphalt; between about 5 and about 40 weight percent mineral filler; and between about 10 and about 55 weight percent cellulose fibers which have been soaked in water prior to addition to the composition.
Claim 31
Dependent Claim
93 words
A process for preparing an asphalt composition which is free of asbestos and highly structured carbon black, comprising: soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition; mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler; and mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
Claim 32
Dependent Claim
93 words
A process for preparing an asphalt composition which is free of asbestos and highly structured carbon black, comprising: soaking cellulose fibers in an aqueous environment prior to the making of the asphalt composition; mixing between about 40 and about 70 weight percent asphalt with about 5 to about 40 weight percent mineral filler; and mixing into the asphalt and mineral filler mixture about 10 to about 55 weight percent cellulose fibers that had been previously soaked in an aqueous environment, said weight percent figures based upon the weight of the total asphalt composition.
References Cited (Backward Citations)
CA905029A
Cited
US2806825A
Cited
US3276906A
Cited
FR2033770A5
Cited
JPS5785851A
Cited
US4468430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |