US4439563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water based concrete cure
Assignee: WR Meadows Inc
•
Filing: 1982-09-23
•
Granted: 1984-03-27
•
Expires: 2002-09-23
Abstract
Abstract A concrete cure is provided which is totally water based and completely void of solvents. A moisture impermeable film is attained when the cure is applied to fresh concrete. The cure forms a barrier over the concrete allowing it to retain over 95% of the mixing water for a minimum of 72 hours when applied at the rate of 200 ft2/gallon (5m2/dm3). The concrete cure of the invention is a mixture of a hydrocarbon resin, emulsifying agents, paraffinic wax, and water. The cure may be provided in a clear or pigmented formulation. A method for making the concrete cure is also disclosed.
Inventors
- 👤 John J. Sackis
- 👤 Paul H. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:06
CPC Classifications
C; C04; C04B; C04B40/00; C04B40/04
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
84 words
A method for making a water based concrete cure comprising the steps of: melting an aliphatic hydrocarbon resin having a melting point in the range of from about 70° C. to about 105° C., and a paraffinic wax having a combined weight by percentage of the final product of at least 13%; mixing into the resin and wax an emulsifying agent in an amount of at least 0.96% by weight; adding water sufficient to form an emulsion of resin and wax in the water.
Claim 2
Independent Claim
84 words
A method for making a water based concrete cure comprising the steps of: melting an aliphatic hydrocarbon resin having a melting point in the range of from about 70° C. to about 105° C., and a paraffinic wax having a combined weight by percentage of the final product of at least 13%; mixing into the resin and wax an emulsifying agent in an amount of at least 0.96% by weight; adding water sufficient to form an emulsion of resin and wax in the water.
Claim 3
Dependent Claim
43 words
The method as in claim 1 wherein the step of adding the emulsifying agent comprises the step of adding at least 0.75% by weight of a fatty acid and adding at least 0.21% by weight of volatile base into the disperser vessel means.
Claim 4
Dependent Claim
17 words
The method as in claim 2 including the step of adding the volatile base comprises adding morpholine.
Claim 5
Dependent Claim
23 words
The method as in claim 1 including the step of adding a predispersion of a white pigment to the let down vessel means.
Claim 6
Dependent Claim
56 words
A water based concrete cure comprising an aliphatic hydrocarbon resin and paraffinic wax, emulsified in from about 60% to about 85% water by weight, wherein the concrete cure forms a film when applied to freshly poured concrete and restricts the loss of water from the concrete to not more than 0.055 g/cm 2 for 72 hours.
Claim 7
Dependent Claim
56 words
A water based concrete cure comprising an aliphatic hydrocarbon resin and paraffinic wax, emulsified in from about 60% to about 85% water by weight, wherein the concrete cure forms a film when applied to freshly poured concrete and restricts the loss of water from the concrete to not more than 0.055 g/cm 2 for 72 hours.
Claim 8
Dependent Claim
22 words
The water based concrete cure as in claim 5 wherein the ratio of aliphatic hydrocarbon resin to paraffinic wax is about 5:1.
Claim 9
Dependent Claim
25 words
The water based concrete cure as in claim 6 wherein the resin has a melting point of from about 70° C. to about 105° C.
Claim 10
Dependent Claim
21 words
The water based concrete cure as in claim 5 wherein the emulsifying agents comprise a fatty acid and a volatile base.
Claim 11
Dependent Claim
15 words
The water based concrete cure as in claim 8 wherein the volatile base comprises morpholine.
Claim 12
Dependent Claim
33 words
The water based concrete cure as in claim 8 wherein the fatty acid is present in at least 0.75% by weight and the volatile base is present in at least 0.21% by weight.
Claim 13
Dependent Claim
28 words
The water based concrete cure as in claim 5 wherein the hydrocarbon resin and paraffinic wax are present in a combined weight of at least 13% by weight.
Claim 14
Dependent Claim
16 words
The water based concrete cure as in claim 5 wherein the cure has a sprayable viscosity.
Claim 15
Dependent Claim
18 words
The water based concrete cure as in claim 12 wherein the cure dries to a clear membrane-like film.
Claim 16
Dependent Claim
21 words
The water based concrete cure as in claim 5 wherein the cure comprises at least 3.5% by weight of white pigment.
Claim 17
Dependent Claim
16 words
The water based concrete cure as in claim 14 wherein the white pigment comprises titanium dioxide.
Claim 18
Dependent Claim
87 words
A water based concrete cure which comprises a mixture of from about 13% to about 35% by weight of a resin/wax with the wax being a paraffinic wax and the resin being an aliphatic hydrocarbon having a melting point in the range of from about 70° C. to about 105° C., at least 0.75% by weight of a fatty acid, at least 0.21% by weight of a volatile base, and from about 60% to about 85% by weight of water, whereby the cure is a sprayable liquid.
Claim 19
Dependent Claim
87 words
A water based concrete cure which comprises a mixture of from about 13% to about 35% by weight of a resin/wax with the wax being a paraffinic wax and the resin being an aliphatic hydrocarbon having a melting point in the range of from about 70° C. to about 105° C., at least 0.75% by weight of a fatty acid, at least 0.21% by weight of a volatile base, and from about 60% to about 85% by weight of water, whereby the cure is a sprayable liquid.
Claim 20
Dependent Claim
81 words
An emulsion concentrate of a water based concrete cure, capable of being mixed with additional water to attain a viscosity suitable for spray application onto freshly poured concrete, comprising: an aliphatic hydrocarbon resin having a melting point of about 70° C. to about 105° C.; a paraffinic wax capable of plasticizing the resin; anionic emulsifying agents comprising a fatty acid and volatile base; and emulsifying water; wherein the emulsion concentrate is water based having water as the exterior, or continuous phase.
Claim 21
Dependent Claim
81 words
An emulsion concentrate of a water based concrete cure, capable of being mixed with additional water to attain a viscosity suitable for spray application onto freshly poured concrete, comprising: an aliphatic hydrocarbon resin having a melting point of about 70° C. to about 105° C.; a paraffinic wax capable of plasticizing the resin; anionic emulsifying agents comprising a fatty acid and volatile base; and emulsifying water; wherein the emulsion concentrate is water based having water as the exterior, or continuous phase.
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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |