Patent US2382149A successfully refreshed from Google Patents.
Patent US4342602A successfully refreshed from Google Patents.
US4342602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dulling agent on the basis of wax for varnishes, and process for the manufacture thereof
Assignee: Hoechst AG
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Filing: 1980-10-15
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Granted: 1982-08-03
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Expires: 2000-10-15
Abstract
Abstract The invention provides a process for the manufacture of a polyethylene wax micro-powder, 99 weight % of which has a grain size of less than 15 microns, for the dulling of varnishes. Such a micro-powder generally cannot be obtained without difficulty by grinding; in accordance with the invention this is possible, however, by grinding the polyethylene wax together with an amide wax.
Inventors
- 👤 Karl Petz
- 👤 Klaus Rieger
- 👤 Dieter Steidl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:26
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/42
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A process for the manufacture of a, wax micro-powder dulling agent for varnishes, 99% of which has a grain size distribution of less than 15 microns, which comprises subjecting a polyolefin wax having an average molecular weight of from 1,000 to 9,000 and an amide wax having a flow point/drop point of from 130° to 150° C. to common grinding in a weight ratio of from 90:10 to 10:90, wherein the amide wax is the reaction product of a fatty acid having from 12 to 34 carbon atoms and a bivalent aliphatic amine having from 2 to 6 carbon atoms.
Claim 2
Dependent Claim
100 words
A process for the manufacture of a, wax micro-powder dulling agent for varnishes, 99% of which has a grain size distribution of less than 15 microns, which comprises subjecting a polyolefin wax having an average molecular weight of from 1,000 to 9,000 and an amide wax having a flow point/drop point of from 130° to 150° C. to common grinding in a weight ratio of from 90:10 to 10:90, wherein the amide wax is the reaction product of a fatty acid having from 12 to 34 carbon atoms and a bivalent aliphatic amine having from 2 to 6 carbon atoms.
Claim 3
Dependent Claim
11 words
A dulling agent for varnishes obtained as claimed in claim 1.
Claim 4
Dependent Claim
102 words
A process for improving the capacity of polyolefin wax having an average molecular weight of from 1,000 to 9,000 to be ground to a micro-powder 99% by weight of which has a grain size of less than 15 microns, which comprises carrying out the grinding with addition of an amide wax from a fatty acid having from 12 to 34 carbon atoms and a bivalent aliphatic amine having from 2 to 6 carbon atoms, the amide wax having a flow point/drop point of from 130° to 150° C.; the weight ratio of polyolefin wax to amide wax being from 90:10 to 10:90.
Claim 5
Dependent Claim
102 words
A process for improving the capacity of polyolefin wax having an average molecular weight of from 1,000 to 9,000 to be ground to a micro-powder 99% by weight of which has a grain size of less than 15 microns, which comprises carrying out the grinding with addition of an amide wax from a fatty acid having from 12 to 34 carbon atoms and a bivalent aliphatic amine having from 2 to 6 carbon atoms, the amide wax having a flow point/drop point of from 130° to 150° C.; the weight ratio of polyolefin wax to amide wax being from 90:10 to 10:90.
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) | 1985-08-02 | 1986-02-01 | 1986-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-02 | 1990-02-01 | 1990-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-02 | 1994-02-01 | 1994-08-03 | $7700.00 | Window Closed / Lapsed |