Patent US4373058A successfully refreshed from Google Patents.
US4373058A
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Polymer concrete comprising furfuryl alcohol resin
Assignee: TNEMEC COMPANY Inc KANSAS CITY MISSOURI A CORP OF MISSOURI
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Filing: 1981-03-17
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Granted: 1983-02-08
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Expires: 2001-03-17
Abstract
Abstract A polymer concrete comprising by weight about 40-70% coarse aggregate, about 20-55% of a fine aggregate such as sand, about 2-15% silica flour and about 8% to 12% furfuryl alcohol polymerized in situ with an acid catalyst produces a highly cross-linked concrete which contains no cement and is mixed with water. The furfuryl polymer concrete provides the broadest range of chemical resistance of all existing polymer concretes. The coarse and fine aggregate have a pH less than 7.0 and are provided with a specific size gradation.
Inventors
- 👤 Lowell C. Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:17
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/36; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/105; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
A polymer concrete composition comprising by weight about 40% to about 70% coarse mineral aggregate ranging in size from about 11/2 inches to about 0.187 inch, about 20% to 55% fine mineral aggregate ranging from about 0.187 inch to about 0.0059 inch; about 2% to about 15% silica flour; about 8% to about 12% furfuryl alcohol monomer polymerized in situ by the addition of an acid catalyst contained in amounts of about 8% to about 12% by weight of said monomer, said mineral aggregates having a pH less than about 7.0, and the moisture content of the mineral aggregates being less than about 1% by weight.
Claim 2
Dependent Claim
106 words
A polymer concrete composition comprising by weight about 40% to about 70% coarse mineral aggregate ranging in size from about 11/2 inches to about 0.187 inch, about 20% to 55% fine mineral aggregate ranging from about 0.187 inch to about 0.0059 inch; about 2% to about 15% silica flour; about 8% to about 12% furfuryl alcohol monomer polymerized in situ by the addition of an acid catalyst contained in amounts of about 8% to about 12% by weight of said monomer, said mineral aggregates having a pH less than about 7.0, and the moisture content of the mineral aggregates being less than about 1% by weight.
Claim 3
Dependent Claim
24 words
The polymer concrete of claim 1 wherein the moisture content of the mineral aggregates is less than 0.5% by weight of said mineral component.
Claim 4
Dependent Claim
21 words
The polymer concrete of claim 1 wherein the amount of extraneous substances must not exceed 10% by weight of said concrete.
Claim 5
Dependent Claim
48 words
The polymer concrete of claim 1 wherein said coarse aggregate is provided in amounts of about 45% to about 60% by weight; said fine aggregate in amounts of about 30% to about 40% by weight; said silica flour in amounts of about 2% to about 10% by weight.
Claim 6
Dependent Claim
23 words
The polymer concrete of claim 4 wherein at least 90% of said coarse aggregate ranges from about one-half inch to about 0.187 inch.
Claim 7
Dependent Claim
26 words
The polymer concrete of claim 5 wherein at least 75% of said fine aggregate has a size range from about 0.047 inch to about 0.006 inch.
Claim 8
Dependent Claim
34 words
The polymer concrete of claim 6 wherein said mineral component comprises 54% by weight of said coarse aggregate, about 36% by weight of said fine aggregate and about 10% by weight of silica flour.
Claim 9
Dependent Claim
65 words
A polymer concrete composition comprising a furfuryl alcohol monomer polymerized in situ and a mineral aggregate mixture, said mineral aggregate comprising 40% to 70% of a coarse aggregate greater than about 0.187 inch and about 20% to 55% of a fine aggregate less than 0.187 inch, said aggregate having a moisture content of 1% or less by weight and a pH of less than 7.0.
Claim 10
Dependent Claim
65 words
A polymer concrete composition comprising a furfuryl alcohol monomer polymerized in situ and a mineral aggregate mixture, said mineral aggregate comprising 40% to 70% of a coarse aggregate greater than about 0.187 inch and about 20% to 55% of a fine aggregate less than 0.187 inch, said aggregate having a moisture content of 1% or less by weight and a pH of less than 7.0.
Claim 11
Dependent Claim
46 words
The polymer concrete of claim 1 wherein the concrete contains by weight percent less than 1.00 of coal and lignite, 0.05 of coal lumps, 10.00 of soft fragments, 0.50 of cinders and clinkers, 1.00 of free shells, and 1.75 of material passing a No. 200 sieve.
Claim 12
Dependent Claim
18 words
The polymer concrete of claim 1 wherein the concrete is free of salt, alkali, carbonates, and vegetable matter.
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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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |