Patent US3981605A successfully refreshed from Google Patents.
US4209337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hardenable binding agents based on cement and bituminous emulsions
Assignee: TEGO-INDUSTRIE-UND BAUCHEMIE GmbH
•
Filing: 1979-02-27
•
Granted: 1980-06-24
•
Expires: 1999-02-27
Abstract
Abstract Hardenable binding agents which are composed of cement and emulsions of bituminous products wherein the emulsifier is a surface-active betaine. This composition is particularly suitable for use in roadway surfaces because it possesses both excellent elastic behavior as well as good mechanical properties. Methods for the preparation of the material and the composition are also disclosed.
Inventors
- 👤 Helmut Wagner
- 👤 Fritz Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:18
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
18 words
Hardenablee binding agents comprising cement and emulsions of bituminous products, said emulsions containing surface-active betaines as the emulsifiers.
Claim 2
Dependent Claim
18 words
Hardenablee binding agents comprising cement and emulsions of bituminous products, said emulsions containing surface-active betaines as the emulsifiers.
Claim 3
Dependent Claim
83 words
The binding agents of claim 1 wherein the betaine has the formula: ##STR16## in which R 1 is an aliphatic hydrocarbon residue with 8 to 22 carbon atoms or a cycloaliphatic hydrocarbon residue, R 2 is a bivalent hydrocarbon residue with 2 to 6 carbon atoms, R 3 and R 4 are the same or different and may be a monovalent hydrocarbon residue with 1 to 4 carbon atoms, and R 5 is a bivalent hydrocarbon residue with 1 to 4 carbon atoms.
Claim 4
Dependent Claim
59 words
The agents of claim 1 wherein the betaines have the formula ##STR17## in which R 1 is an aliphatic hydrocarbon residue with 8 to 22 carbon atoms or a cycloaliphatic hydrocarbon residue, R 5 is a bivalent hydrocarbon residue with 1 to 4 carbon atoms, and R 6 is a monovalent hydrocarbon residue with 1 to 4 carbon atoms.
Claim 5
Dependent Claim
65 words
The agents of claim 1 wherein the betaines have the formula ##STR18## in which R 1 is an aliphatic hydrocarbon residue with 8 to 22 carbon atoms or a cycloaliphatic hydrocarbon residue, R 5 is a bivalent hydrocarbon residue with 1 to 4 carbon atoms, R 7 is a hydrogen, alkyl or hydroxyl residue, x is 2 or 3, and y is 1 or 2.
Claim 6
Dependent Claim
32 words
The agents of claims 1, 2, 3, or 4 wherein the bitumen content of the emulsion is between about 30 to 70 weight percent based on the total weight of the emulsion.
Claim 7
Dependent Claim
28 words
The agents of claims 1, 2, 3 or 4, wherein the emulsifier content of the emulsion is between about 0.2 to 5 weight percent of the total emulsion.
Claim 8
Dependent Claim
21 words
The agents of claims 1, 2, 3 or 4, wherein the pH of the emulsion is between about 1.5 and 10.
Claim 9
Dependent Claim
10 words
The agent of claim 2 wherein R 2 is linear.
Claim 10
Dependent Claim
13 words
The agent of claim 2 wherein R 3 and R 4 are methyl.
Claim 11
Dependent Claim
15 words
The agents of claims 2, 3, or 4 wherein R 5 is methylene or ethylene.
Claim 12
Dependent Claim
10 words
A hardened slab formed from the agents of claim 1.
Claim 13
Dependent Claim
10 words
A shaped article formed from the composition of claim 1.
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) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |