US4394481A
Expired / Lapsed
US
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Cationic arcylamide and rubber modified asphalts
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1981-12-11
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Granted: 1983-07-19
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Expires: 2001-12-11
Abstract
Abstract Cationic chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an acrylamide, asphalt, a vinyl aromatic monomer and a rubbery polymer.
Inventors
- 👤 Anthony V. Grossi
- 👤 Leon A. Hagelee
- 👤 Louis T. Hahn
- 👤 Alfred Marzocchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:34
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
21 words
As a composition of matter, the product produced by reacting an acrylamide, asphalt, a vinyl aromatic monomer and a rubbery polymer.
Claim 2
Dependent Claim
21 words
As a composition of matter, the product produced by reacting an acrylamide, asphalt, a vinyl aromatic monomer and a rubbery polymer.
Claim 3
Dependent Claim
91 words
The composition of claim 1 wherein said acrylamide is a compound of the formula (R.sub.1)(R.sub.2)C═C(R.sub.3)--C(O)N(R.sub.4)(R.sub.5) wherein R 1 , R 2 and R 3 are independently selected from hydrogen and a C 1 -C 3 alkyl; R 4 and R 5 are independently selected from hydrogen, a C 1 -C 3 alkyl and a radical of the formula --R.sub.6 --N(R.sub.7)(R.sub.8) wherein R 6 is an alkylene group of 1 to 5 carbon atoms and R 7 and R 8 are independently selected from hydrogen or a C 1 -C 3 alkyl.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein R 5 is said radical of the formula --R 6 --N(R 7 )(R 8 ).
Claim 5
Dependent Claim
13 words
The composition of claim 3 wherein R 1 and R 2 are hydrogen.
Claim 6
Dependent Claim
12 words
The composition of claim 3 wherein R 6 is ethylene or propylene.
Claim 7
Dependent Claim
18 words
The composition of claim 3 wherein R 3 , R 7 and R 8 are hydrogen or methyl.
Claim 8
Dependent Claim
10 words
The composition of claim 2 wherein said acrylamide is dimethylaminopropylmethacrylamide.
Claim 9
Dependent Claim
26 words
The composition of claim 2 wherein said rubbery polymer is a homopolymer of a diene or a copolymer of a diene and an olefinically unsaturated monomer.
Claim 10
Dependent Claim
27 words
The composition of claim 8 wherein said reacting is done by heating at a temperature of at least about 120° C. for at least about 10 hours.
Claim 11
Dependent Claim
11 words
The composition of claim 9 wherein said vinyl aromatic is styrene.
Claim 12
Dependent Claim
10 words
The composition of claim 10 wherein said acrylamide is dimethylaminopropylmethacrylamide.
Claim 13
Dependent Claim
15 words
The composition of claim 1 wherein said acrylamide is a compound having a double bond.
Claim 14
Dependent Claim
14 words
The composition of claim 12 wherein said acrylamide is a secondary or tertiary acrylamide.
Claim 15
Dependent Claim
63 words
A chemically modified asphalt reaction product produced by charging into a reactor an acrylamide having a double bond, asphalt, a vinyl aromatic monomer, and a rubbery polymer which is a homopolymer of a diene or a copolymer of a diene and an olefinically unsaturated monomer and heating the materials at an elevated temperature for several hours so as to produce said reaction product.
Claim 16
Dependent Claim
63 words
A chemically modified asphalt reaction product produced by charging into a reactor an acrylamide having a double bond, asphalt, a vinyl aromatic monomer, and a rubbery polymer which is a homopolymer of a diene or a copolymer of a diene and an olefinically unsaturated monomer and heating the materials at an elevated temperature for several hours so as to produce said reaction product.
Claim 17
Dependent Claim
29 words
The chemically modified asphalt reaction product of claim 14 wherein said heating is done at a temperature of at least about 120° C. for at least about ten hours.
Claim 18
Dependent Claim
20 words
The chemically modified asphalt reaction product of claim 15 wherein said temperature is about 160° C. to about 180° C.
Claim 19
Dependent Claim
94 words
The chemically modified asphalt of claim 14 wherein said acrylamide compound is a compound of the formula (R.sub.1)(R.sub.2)C═C(R.sub.3)--C(O)N(R.sub.4)(R.sub.5) wherein R 1 , R 2 and R 3 are independently selected from hydrogen and a C 1 -C 3 alkyl; R 4 and R 5 are independently selected from hydrogen, a C 1 -C 3 alkyl and a radical of the formula --R.sub.6 --N(R.sub.7)(R.sub.8) wherein R 6 is an alkylene group containing 1 to 5 carbon atoms and R 7 and R 8 are independently selected from hydrogen and a C 1 -C 3 alkyl.
Claim 20
Dependent Claim
25 words
The chemically modified asphalt of claim 17 wherein said vinyl aromatic monomer is styrene and wherein said rubber is a copolymer of styrene and butadiene.
Claim 21
Dependent Claim
12 words
The chemically modified asphalt of claim 18 wherein said acrylamide is dimethylaminopropylmethacrylamide.
Claim 22
Dependent Claim
15 words
The chemically modified asphalt of claim 14 wherein said temperature is at least 150° C.
Claim 23
Independent Claim
52 words
A method comprising charging into a reactor an acrylamide compound having a double bond, asphalt, a vinyl aromatic monomer, and a rubbery polymer which is a homopolymer of a diene or a copolymer of a diene and an olefinically unsaturated monomer and heating the materials at an elevated temperature for several hours.
Claim 24
Independent Claim
52 words
A method comprising charging into a reactor an acrylamide compound having a double bond, asphalt, a vinyl aromatic monomer, and a rubbery polymer which is a homopolymer of a diene or a copolymer of a diene and an olefinically unsaturated monomer and heating the materials at an elevated temperature for several hours.
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |