Patent US4391946A successfully refreshed from Google Patents.
US4391946A
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Furan polymer concrete
Assignee: Quaker Oats Co
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Filing: 1981-11-18
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Granted: 1983-07-05
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Expires: 2001-11-18
Abstract
Abstract A furan polymer concrete is described comprising aggregate, acid catalyst and binder which includes furfuryl alcohol and a crosslinking monomer. The binder has a low viscosity, thereby allowing significantly less binder to be used in forming the polymer concrete.
Inventors
- 👤 Denis W. Akerberg
- 👤 David D. Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:45
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/105; Y; Y10; Y10S; Y10S524/00; Y10S524/914
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
71 words
A polymer concrete for use in a corrosive environment comprising a nonalkaline aggregate, a furan binder having a viscosity less than 15 cps at 25° C. and an acidic catalyst, wherein said furan binder comprises furfuryl alcohol, a silane and less than 25 percent by weight based on the weight of the furan binder of a cross-linking monomer selected from the group consisting of bis-phenol A, furfural, resorcinol, hydroxymethylfuran, and bis-hydroxymethylfuran.
Claim 2
Dependent Claim
71 words
A polymer concrete for use in a corrosive environment comprising a nonalkaline aggregate, a furan binder having a viscosity less than 15 cps at 25° C. and an acidic catalyst, wherein said furan binder comprises furfuryl alcohol, a silane and less than 25 percent by weight based on the weight of the furan binder of a cross-linking monomer selected from the group consisting of bis-phenol A, furfural, resorcinol, hydroxymethylfuran, and bis-hydroxymethylfuran.
Claim 3
Dependent Claim
16 words
The polymer concrete of claim 1 wherein said non-alkaline aggregate is size graded for decreased porosity.
Claim 4
Dependent Claim
33 words
The polymer concrete of claim 1 wherein said acidic catalyst is selected from the group of toluene sulfonic acid, benzene sulfonic acid, xylene sulfonic acid, phenol sulfonic acid and mixtures of said acids.
Claim 5
Dependent Claim
25 words
The polymer concrete of claim 1 wherein said acidic catalyst comprises a mixture of an aromatic sulfonic acid and the urea salt of said acid.
Claim 6
Dependent Claim
25 words
The polymer concrete of claim 1 wherein said furan binder comprises a mixture of about 94 percent furfuryl alcohol and about 6 percent bis-phenol A.
Claim 7
Dependent Claim
27 words
The polymer concrete of claim 1 wherein the concrete contains binder in the range of 7 to 13 percent inclusive based on the weight of the aggregate.
Claim 8
Dependent Claim
98 words
The process for forming a bound aggregate building material composition comprising the steps of: a. forming a binder system by admixing monomeric furfuryl alcohol with a cross-linking monomer having a ring structure therein and crosslinkable with furfuryl alcohol, said cross-linking monomer in an amount less than 25 percent of said binder system wherein said binder system has a viscosity of less than about 15 cps at 25° C.; b. forming a catalyzed aggregate by admixing nonalkaline aggregate and acidic catalyst; and c. admixing said binder system and said catalyzed aggregate to form a bound aggregate building material composition.
Claim 9
Dependent Claim
98 words
The process for forming a bound aggregate building material composition comprising the steps of: a. forming a binder system by admixing monomeric furfuryl alcohol with a cross-linking monomer having a ring structure therein and crosslinkable with furfuryl alcohol, said cross-linking monomer in an amount less than 25 percent of said binder system wherein said binder system has a viscosity of less than about 15 cps at 25° C.; b. forming a catalyzed aggregate by admixing nonalkaline aggregate and acidic catalyst; and c. admixing said binder system and said catalyzed aggregate to form a bound aggregate building material composition.
Claim 10
Dependent Claim
23 words
The process of claim 7 wherein the cross-linking monomer is selected from the group consisting of bis-phenol A, furfural, resorcinol, hydroxymethylfuran, and bis-hydroxymethylfuran.
Claim 11
Dependent Claim
25 words
The process of claim 7 wherein the temperature of the aggregate is less than 65° F. and wherein the acidic catalyst is toluene sulfonic acid.
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) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |