Patent US4382989A successfully refreshed from Google Patents.
US4382989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing asphalt formulation
Assignee: Honeywell International Inc
•
Filing: 1981-10-26
•
Granted: 1983-05-10
•
Expires: 2001-10-26
Abstract
Abstract The present invention is an asphaltic composition which is useful as a roofing asphalt formulation and method of making this formulation. The composition includes about 39 to 99 percent by weight of oxidized asphalt and between 1 and about 8 percent of oxidized polyethylene. It is preferred to use between about 0 to 40 percent of the saturant, which can be an unoxidized asphalt, to modify the viscosity of the formulation. There can be a filled asphaltic composition comprising about 40 percent by weight to about 99 percent by weight of the asphaltic composition and about 1 percent by weight to about 60 percent by weight of filler, which can be stone dust.
Inventors
- 👤 Irving B. Chang
- 👤 Robert E. Beckwith, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:47
CPC Classifications
D; D06; D06N; D06N5/00; C; C08; C08L; C08L95/00; C08L23/00; C08L23/26; C08L23/30; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/20; Y10T442/2369
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
86 words
An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises a filled asphaltic coating composition comprising: about 40 percent to about 99 percent by weight of asphaltic composition comprising, about 52 to about 99 percent by weight of oxidized asphalt, about 1 to about 8 percent by weight of oxidized polyethylene and 0 to about 40 percent by weight of a saturant; and about 1 percent to about 60 percent by weight of stone dust.
Claim 2
Dependent Claim
86 words
An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises a filled asphaltic coating composition comprising: about 40 percent to about 99 percent by weight of asphaltic composition comprising, about 52 to about 99 percent by weight of oxidized asphalt, about 1 to about 8 percent by weight of oxidized polyethylene and 0 to about 40 percent by weight of a saturant; and about 1 percent to about 60 percent by weight of stone dust.
Claim 3
Dependent Claim
38 words
The improved asphalt coated roofing material as recited in claim 1 wherein the asphalt coating composition comprises about 71 to 89 percent oxidized asphalt, about 1 to 4 percent oxidized polyethylene, and about 10 to 25 percent saturant.
Claim 4
Dependent Claim
19 words
The improved asphalt coated roofing material as recited in claim 1 wherein the roofing felt is made of fiberglass.
Claim 5
Dependent Claim
37 words
The asphaltic coating composition as recited in claim 1 wherein the oxidized polyethylene has a molecular weight between about 1,000 and about 10,000 and a Brookfield Viscosity at 149° C. between about 100 and about 40,000 cps.
Claim 6
Dependent Claim
39 words
The asphaltic coating composition as recited in claim 4 wherein the oxidized polyethylene has a molecular weight of between about 3,000 and about 5,000, and a Brookfield Viscosity at 149° C. of between about 8,000 cps and 10,000 cps.
Claim 7
Dependent Claim
30 words
The asphaltic coating composition as recited in claim 5 wherein there is: 77 percent by weight oxidized asphalt; 3 percent by weight oxidized polyethylene; and 20 percent by weight saturant.
Claim 8
Dependent Claim
56 words
An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises an asphaltic coating composition comprising: about 52 to about 99 percent oxidized asphalt; about 1 to about 8 percent by weight of oxidized polyethylene; and 0 to about 40 percent by weight of a saturant.
Claim 9
Dependent Claim
56 words
An improved asphalt coated roofing material of the type having roofing felt coated with asphaltic coating composition wherein the improvement comprises an asphaltic coating composition comprising: about 52 to about 99 percent oxidized asphalt; about 1 to about 8 percent by weight of oxidized polyethylene; and 0 to about 40 percent by weight of a saturant.
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) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |