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US3868263A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making a paving composition

Assignee: Individual
•
Filing: 1970-06-22
•
Granted: 1975-02-25
•
Expires: 1990-06-22
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Abstract

Abstract A method of making a paving composition in which a primary bituminous binder containing an adhesion promotor is mixed with an aggregate. The primary binder is allowed to cure on the aggregate to form a premix of binder-coated aggregate. After such curing, the premix is then mixed with a secondary bituminous binder to form the paving composition.

Inventors

  • 👤 Kenneth E Mcconnaughay

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:42
CPC Classifications
C; C08; C08L; C08L95/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 268 words
A METHOD OF MAKING A PAVING COMPOSITION, COMPRISING THE STEPS OF MIXING WITH AN AGGREGATE A PRIMARY BITUMINOUS BINDER TO PRODUCE A PREMIX OF BINDER-COATED AGGREGATE, SAID PRIMARY BINDER CONSISTING OF A BITUMINOUS MATERIAL SELECTED FROM THE CLASS CONSISTING OF ASPHALT, TAR, PITCH, EMULSIFIED AND CUT BACK FORMS THEREOF, AND COMBINATIONS THEREOF, AND FROM ABOUT 0.05 PERCENT TO ABOUT 10 PERCENT OF AN ADHESION PROMOTER BASED UPON THE WEIGHT OF THE NONDISTILLABLE SOLIDS IN SAID BITUMINOUS MATERIAL, SAID PREMIX CONTAINING FROM ABOUT 1 PERCENT TO ABOUT 3.5 PERCENT OF NONDISTILLABLE SOLIDS IN SAID PRIMARY BINDER BASED UPON THE WEIGHT OF SAID AGGREGATE, SAID ADHESION PROMOTER BEING SELECTED FROM THE CLASS CONSISTING OF THE PRIMARY, SECONDARY, TERTIARY, AND QUARTERNARY AINES AND IMIDAZOLINES; AMINES AND IMIDAZOLINES REACTED WITH HYDROCHLORIC, SULFURIC, ACETIC AND FATTY ACIDS; METAL SOAPS; ROSINS, FATTY ACIDS AND PITCHES REACTED WITH ALUMINUM SULFATE, SODIUM CHROMATE, POTASSIUM CHROMATE, CHROMIC ACIDS, HYDRATED LIME, AMMONIA, OR THE HYDROXIDES AND HALIDES OF THE ALKALI METALS AND ALKALINE METAL EARTHS; AND THE LIKE, ALLOWING SAID PRIMARY BINDER TO CURE FOR AT LEAST 24 HOURS ON THE AGGREGATE IN SAID PREMIX AND ADHERE TO SAID AGGREGATE, AND THEN MIXING WITH SAID PREMIX A SECONDARY BITUMINOUS BINDER TO FROM SAID PAVING COMPOSITION, SAID PAVING COMPOSITION CONTAINING FROM ABOUT 2 PERCENT TO ABOUT 7 PERCENT OF NONDISTILLABLE SOLIDS FROM SAID SECONDARY BINDER BASED UPON THE WEIGHT OF SAID AGGREGATE, SAID PRIMARY BINDER HAVING A KINEMATIC VISCOSITY AT 140*F. OF FROM ABOUT 20 CST. TO ABOUT 6,000 CST. AND SAID SECONDARY BINDER HAVING AN ABSOLUTE VISCOSITY AT 140*F. OF FROM ABOUT 200 POISES TO ABOUT 4,000 POISES.
Claim 2
Independent Claim 268 words
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
Claim 3
Dependent Claim 45 words
The invention as set forth in claim 1 in which one of said primary and secondary binders contains a fibrous material in an amount up to about 3 percent of the weight of the nondistillable solids in said one of said primary and secondary binders.
Claim 4
Dependent Claim 45 words
The invention as set forth in claim 1 in which one of said primary and secondary binders contains a filler material in an amount up to about 18 percent of the weight of the nondistillable solids in said one of said primary and secondary binders.
Claim 5
Dependent Claim 65 words
The invention as set forth in claim 1 in which one of said primary and secondary binders contains a fibrous material in an amount up to about 3 percent of the weight of the nondistillable solids therein, and one of said primary and secondary binders contains a filler material in an amount up to about 18 percent of the weight of the nondistillable solids therein.

References Cited (Backward Citations)

US2051731A Cited
US2003861A Cited
US2411634A Cited
US2760878A Cited
US2855319A Cited
US2941893A Cited
US3093595A Cited
US3271240A Cited
US3270631A Cited
US3539369A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-02-24 1978-08-26 1979-02-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-02-24 1982-08-26 1983-02-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-02-24 1986-08-26 1987-02-25 $7700.00 Window Closed / Lapsed

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