US4083731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed oxidation product on the basis of bark waxes and other waxes
Assignee: Hoechst AG
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Filing: 1975-10-17
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Granted: 1978-04-11
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Expires: 1995-10-17
Abstract
Abstract A mixture of wax acids is prepared by oxidizing by means of chromosulfuric acid a mixture of a bark wax with a further natural or synthetic wax, preferably a hydrocarbon wax. The mixture of wax acids is especially suitable as wax component in polishes.
Inventors
- 👤 Walter Brotz
- 👤 Gunther Illmann
- 👤 Karl Heinz Stetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:01
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/38; C08; C08L; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
A process for the manufacture of a mixture of wax acids which comprises oxidizing a wax mixture at 70 to 130° C with chromic acid in sulfuric acid solution having 60 to 140 grams CrO 3 and 200 - 600 grams concentrated H 2 SO 4 per liter, said mixture consisting of (a) 5 to 80% by weight of a bark wax together with (b) 95 to 20% by weight of at least one of another natural wax, a hydrocarbon wax, an oxidized hydrocarbon wax.
Claim 2
Dependent Claim
85 words
A process for the manufacture of a mixture of wax acids which comprises oxidizing a wax mixture at 70 to 130° C with chromic acid in sulfuric acid solution having 60 to 140 grams CrO 3 and 200 - 600 grams concentrated H 2 SO 4 per liter, said mixture consisting of (a) 5 to 80% by weight of a bark wax together with (b) 95 to 20% by weight of at least one of another natural wax, a hydrocarbon wax, an oxidized hydrocarbon wax.
Claim 3
Dependent Claim
14 words
The process of claim 1, wherein the other natural wax is crude montan wax.
Claim 4
Dependent Claim
19 words
The process of claim 1, wherein the hydrocarbon wax is a paraffin wax, a microwax, or a polyolefin wax.
Claim 5
Dependent Claim
23 words
The process of claim 3, wherein the polyolefin wax is a linear α-olefin having from 16 to 70 carbon atoms in the chain.
Claim 6
Dependent Claim
23 words
The process of claim 1, wherein the mixture consists of 5 to 40% by weight of (a) and 95 to 60% of (b).
Claim 7
Dependent Claim
35 words
The product prepared by the process of claim 1 having an acid number of from 30 to 200, a saponification number of 60 to 260 and a drop point of from 40° to 130° C.
Claim 8
Dependent Claim
20 words
The product of claim 6, consisting of the oxidate of a mixture of a bark wax with crude montan wax.
Claim 9
Dependent Claim
26 words
The product of claim 6 consisting of the oxidate of a mixture of a bark wax with a paraffin wax, a microwax or a polyolefin wax.
Claim 10
Dependent Claim
23 words
The product of claim 8 wherein the polyolefin wax is a linear α-olefin having from 16 to 70 carbon atoms in the chain.
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) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |