US4218263A
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US
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Process for preparing oxygen-containing waxes
Assignee: Eneos Corp
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Filing: 1978-11-17
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Granted: 1980-08-19
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Expires: 1998-11-17
Abstract
Abstract A process for preparing an oxygen-containing wax obtained by reacting a mixture of saturated and unsaturated hydrocarbon waxes with an unsaturated polycarboxylic acid thereby to prepare the oxygen-containing wax. In one embodiment, this invention relates to the oxygen-containing waxes so prepared.
Inventors
- 👤 Nobuaki Kawabata
- 👤 Nobuo Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:24
CPC Classifications
C; C10; C10M; C10M109/00; C10M109/02; C08; C08F; C08F255/00; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/14; C08L; C08L23/00; C08L23/02; C08L91/00; C08L91/06; C08L91/08; C10M7/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
101 words
A process for preparing an oxygen-containing wax by mixing 10-80 parts by weight of a saturated petroleum fraction wax melting in the range of 50°-85° C. with 20-90 parts by weight of an unsaturated polyolefin wax having a melting point of 36°-120° C., a number average molecular weight of 310-1,000 and 5-50 double bonds per 1,000 carbon atoms to form a wax mixture and then reacting 100 parts by weight of the thus-formed wax mixture with 3-25 parts by weight of an unsaturated polycarboxylic acid or anhydride thereof in the presence of an organic peroxide, thereby to prepare the oxygen-containing wax.
Claim 2
Dependent Claim
101 words
A process for preparing an oxygen-containing wax by mixing 10-80 parts by weight of a saturated petroleum fraction wax melting in the range of 50°-85° C. with 20-90 parts by weight of an unsaturated polyolefin wax having a melting point of 36°-120° C., a number average molecular weight of 310-1,000 and 5-50 double bonds per 1,000 carbon atoms to form a wax mixture and then reacting 100 parts by weight of the thus-formed wax mixture with 3-25 parts by weight of an unsaturated polycarboxylic acid or anhydride thereof in the presence of an organic peroxide, thereby to prepare the oxygen-containing wax.
Claim 3
Dependent Claim
14 words
A process according to claim 1, wherein the petroleum fraction wax is paraffin wax.
Claim 4
Dependent Claim
14 words
A process according to claim 1, wherein the petroleum fraction wax is microcrystalline wax.
Claim 5
Dependent Claim
19 words
A process according to claim 1, 2 or 3, wherein the polyolefin wax is an ethylene or propylene homopolymer.
Claim 6
Dependent Claim
33 words
A process according to claim 1, 2 or 3, wherein the polyolefin wax is an olefin copolymer containing at least one kind selected from the group consisting of ethylene and propylene structural units.
Claim 7
Dependent Claim
29 words
A process according to claim 1, wherein the organic peroxide is present in an amount of 0.2-5 parts by weight per 100 parts by weight of the wax mixture.
Claim 8
Dependent Claim
38 words
A process according to claim 6, wherein the organic peroxide is at least one member selected from the group consisting of ditertiary-butyl peroxide, tertiary-butyl hydroperoxide, dicumyl peroxide, tertiary-butylcumyl peroxide, cumyl hydroperoxide, 2,5-dimethyl-2,5-di(tertiary-butylperoxy)hexane, 2,5-dimethyl-2,5-di(tertiary-butylperoxy)hexyne-3 and methyl ethyl ketone peroxide.
Claim 9
Dependent Claim
13 words
A process according to claim 6, wherein the organic peroxide is ditertiary-butyl peroxide.
Claim 10
Dependent Claim
33 words
A process according to claim 1, 2 or 3, wherein the unsaturated polycarboxylic acid is at least one member selected from the group consisting of maleic, itaconic and citraconic acids and anhydrides thereof.
Claim 11
Dependent Claim
30 words
A process according to claim 4, wherein the unsaturated polycarboxylic acid is at least one member selected from the group consisting of maleic, itaconic and citraconic acids and anhydrides thereof.
Claim 12
Dependent Claim
30 words
A process according to claim 5, wherein the unsaturated polycarboxylic acid is at least one member selected from the group consisting of maleic, itaconic and citraconic acids and anhydrides thereof.
Claim 13
Dependent Claim
20 words
A process according to claim 1, wherein the unsaturated polycarboxylic acid or anhydride thereof is maleic acid or maleic anhydride.
Claim 14
Dependent Claim
20 words
A process according to claim 1, 2 or 3, wherein the reaction is effected at 120°-220° C. for 0.5-6 hours.
Claim 15
Dependent Claim
17 words
A process according to claim 4, wherein the reaction is effected at 120°-220° C. for 0.5-6 hours.
Claim 16
Dependent Claim
17 words
A process according to claim 5, wherein the reaction is effected at 120°-220° C. for 0.5-6 hours.
Claim 17
Dependent Claim
19 words
A process according to claim 6 or 7, wherein the reaction is effected at 120°-220° C. for 0.5-6 hours.
Claim 18
Dependent Claim
10 words
An oxygen-containing wax obtained by the process of claim 13.
References Cited (Backward Citations)
US3590076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |