Patent US4425453A successfully refreshed from Google Patents.
US4425453A
Expired / Lapsed
US
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Asphaltic compositions containing alkoxylated terpolymers
Assignee: Texaco Development Corp
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Filing: 1982-05-21
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Granted: 1984-01-10
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Expires: 2002-05-21
Abstract
Abstract Asphaltic compositions having improved elastic properties and improved adhesion to aggregate particles as well as a high degree of resistance to stripping action are provided which comprise a major amount of asphalt and a minor amount of terpolymer of ethylene, vinyl acetate or vinyl chloride and an organic acid alkoxylated with about 1 to about 10 weight percent of an alkylene oxide. Optionally, the composition may contain a minor amount of a synthetic terpenic resin.
Inventors
- 👤 Walter D. Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:26
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
94 words
A composition comprising about 60 to about 93 weight percent of asphalt and from about 7 to about 40 weight percent of a terpolymer of ethylene, vinyl acetate or vinyl chloride and an organic acid selected from the group consisting of acrylic, methacrylic and itaconic acids alkoxylated with from about 1 to about 10 weight percent of a material selected from the group consisting of propylene oxide and a mixture of propylene oxide and ethylene oxide wherein the weight percent of propylene oxide in the said mixture is from about 65 to about 95.
Claim 2
Dependent Claim
94 words
A composition comprising about 60 to about 93 weight percent of asphalt and from about 7 to about 40 weight percent of a terpolymer of ethylene, vinyl acetate or vinyl chloride and an organic acid selected from the group consisting of acrylic, methacrylic and itaconic acids alkoxylated with from about 1 to about 10 weight percent of a material selected from the group consisting of propylene oxide and a mixture of propylene oxide and ethylene oxide wherein the weight percent of propylene oxide in the said mixture is from about 65 to about 95.
Claim 3
Dependent Claim
22 words
The composition of claim 1 wherein the said asphalt has a softening point (Ring and Ball) from about 50° to 200° C.
Claim 4
Dependent Claim
37 words
The composition of claim 1 wherein the said terpolymer contains at least 60 weight percent ethylene, at least 5 weight percent vinyl acetate and from about 0.50 to about 4 weight percent of the said organic acid.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the said organic acid is acrylic acid.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein the said organic acid is methacrylic acid.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein the said terpolymer is a terpolymer of ethylene, vinyl acetate and acrylic acid.
Claim 8
Dependent Claim
19 words
The composition of claim 1 wherein the said terpolymer is a terpolymer of ethylene, vinyl chloride and acrylic acid.
Claim 9
Dependent Claim
21 words
The composition of claim 1 wherein the said terpolymer has a number storage molecular weight of about 10,000 to about 550,000.
Claim 10
Dependent Claim
21 words
The composition of claim 1 wherein the said terpolymer has a number average molecular weight of about 30,000 to about 110,000.
Claim 11
Dependent Claim
12 words
The composition of claim 1 wherein the said material is propylene oxide.
Claim 12
Dependent Claim
107 words
A composition comprising about 55 to about 93 weight percent of asphalt, about 1 to about 20 weight percent of a synthetic terpenic resin, and from about 6 to about 40 weight percent of a terpolymer of ethylene, vinyl acetate or vinyl chloride and an organic acid selected from the group consisting of acrylic, methacrylic and itaconic acids, alkoxylated with from about 1 to about 10 percent by weight of a material selected from the group consisting of propylene oxide and a mixture of propylene oxide and ethylene oxide wherein the weight percent of propylene oxide in the said mixture is from about 65 to about 95.
Claim 13
Dependent Claim
107 words
A composition comprising about 55 to about 93 weight percent of asphalt, about 1 to about 20 weight percent of a synthetic terpenic resin, and from about 6 to about 40 weight percent of a terpolymer of ethylene, vinyl acetate or vinyl chloride and an organic acid selected from the group consisting of acrylic, methacrylic and itaconic acids, alkoxylated with from about 1 to about 10 percent by weight of a material selected from the group consisting of propylene oxide and a mixture of propylene oxide and ethylene oxide wherein the weight percent of propylene oxide in the said mixture is from about 65 to about 95.
Claim 14
Dependent Claim
21 words
The composition of claim 11 wherein the said asphalt has a softening point (Ring and Ball) from 50° to 200° C.
Claim 15
Dependent Claim
36 words
The composition of claim 11 wherein the said terpolymer contains at least 60 weight percent ethylene, at least 5 weight percent vinyl acetate and from 0.50 to about 4 weight percent of the said organic acid.
Claim 16
Dependent Claim
13 words
The composition of claim 11 wherein the said organic acid is acrylic acid.
Claim 17
Dependent Claim
13 words
The composition of claim 11 wherein the said organic acid is methacrylic acid.
Claim 18
Dependent Claim
12 words
The composition of claim 11 wherein the said material is propylene oxide.
Claim 19
Dependent Claim
22 words
The composition of claim 11 wherein the number average molecular weight of the said terpolymer is from about 10,000 to about 550,000.
Claim 20
Dependent Claim
22 words
The composition of claim 11 wherein the number average molecular weight of the said terpolymer is from about 30,000 to about 110,000.
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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) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |