Patent US4598019A successfully refreshed from Google Patents.
US4598019A
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Method for surface treatment of powdery and granular material stored in open air
Assignee: Eneos Corp
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Filing: 1984-12-05
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Granted: 1986-07-01
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Expires: 2004-12-05
Abstract
Abstract The present invention is directed to a method for surface treatment characterized by making use of a surface treating agent, for a powdery and granular material stored in the open air, containing 0.5 to 50% by weight of a solid content as an essential component and a residue which is water, said solid content comprising (I) 100 parts by weight of a petroleum wax component selected from the group consisting of slack waxes containing 1% by weight or more of an oil content, slack microcrystalline waxes including 1% by weight or more of an oil content, paraffin waxes, microcrystalline waxes and their mixtures and (II) 5 to 500 parts by weight of a polymer component having adhesive properties and the lowest film-forming temperature of 40 DEG C. or less.
Inventors
- 👤 Nobuo Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:59
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/22; B; B01; B01J; B01J2/00; B01J2/30; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
138 words
In a method of surface treatment by applying a surface treating agent to a powdery and granular material stored in the open air, the improvement which comprises said surface treating agent being an emulsion containing 0.5 to 50% by weight of a solid content and water, said solid content comprising (I) 100 parts by weight of a petroleum wax component selected from the group consisting of slack waxes with 1% by weight or more of an oil content, slack microcrystalline waxes with 1% by weight or more of an oil content, paraffin waxes, microcrystalline waxes and mixtures thereof and (II) 5 to 500 parts by weight per 100 parts of petroleum wax component of a polymer component having adhesive properties and the lowest film-forming temperature of 40° C. or less, said polymer being acrylic or vinyl acetate polymer.
Claim 2
Dependent Claim
138 words
In a method of surface treatment by applying a surface treating agent to a powdery and granular material stored in the open air, the improvement which comprises said surface treating agent being an emulsion containing 0.5 to 50% by weight of a solid content and water, said solid content comprising (I) 100 parts by weight of a petroleum wax component selected from the group consisting of slack waxes with 1% by weight or more of an oil content, slack microcrystalline waxes with 1% by weight or more of an oil content, paraffin waxes, microcrystalline waxes and mixtures thereof and (II) 5 to 500 parts by weight per 100 parts of petroleum wax component of a polymer component having adhesive properties and the lowest film-forming temperature of 40° C. or less, said polymer being acrylic or vinyl acetate polymer.
Claim 3
Dependent Claim
36 words
The method for surface treatment according to claim 1 wherein said polymer component (II) is selected from the group consisting of homopolymers of vinyl acetate, copolymers of the same and other monomers, and mixtures thereof polymer.
Claim 4
Dependent Claim
38 words
The method for surface treatment according to claim 1 wherein said polymer component (II) is selected from the group consisting of homopolymers of acrylic acid or acrylic esters, copolymers of the same and other monomers, and mixtures thereof.
Claim 5
Dependent Claim
24 words
The method for surface treatment according to claim 1 wherein said polymer component (II) is a copolymer of acrylic acid and an acrylic ester.
Claim 6
Dependent Claim
25 words
The method for surface treatment according to claim 1 wherein said petroleum wax has a melting point within the range of 45° to 85° C.
Claim 7
Dependent Claim
35 words
The method for surface treatment according to claim 1 wherein said emulsion is emulsified with an emulsifying agent in an amount of 3.0% by weight or less based on the weight of said petroleum wax.
Claim 8
Dependent Claim
31 words
The method for surface treating according to claim 1 wherein an oxygen-containing wax is blended in an amount of 2.0 to 20% by weight based on the weight of said petroleum
Claim 9
Dependent Claim
35 words
The method for surface treating according to claim 7 wherein said oxygen-containing wax is selected from the group consisting of wax oxides, natural waxes and oxygen-containing waxes prepared by reacting hydrocarbon waxes with maleic anhydride.
Claim 10
Dependent Claim
25 words
The method for surface treatment according to claim 7 wherein said oxygen-containing wax is that which is prepared by reacting hydrocarbon wax with maleic anhydride.
Claim 11
Dependent Claim
28 words
The method for surface treating according to claim 8 wherein said oxygen-containing-wax is selected from the group consisting of paraffin oxide, polyethylene oxide, carnauba wax and montan wax.
Claim 12
Dependent Claim
19 words
The method for surface treatment according to claim 1 wherein said emulsion contains 2-35% by weight of solid content.
Claim 13
Dependent Claim
29 words
The method for surface treatment according to claim 11 wherein the amount of polymer component is 15 to 400 parts by weight per 100 parts of petroleum wax component.
Claim 14
Dependent Claim
16 words
The method for surface treatment according to claim 12 wherein said solid content comprises slack wax.
Claim 15
Dependent Claim
33 words
The method for surface treatment according to claim 12 wherein an oxygen-containing wax is blended in an amount of 2.0 to 20% by weight based on the weight of said petroleum wax component.
Claim 16
Dependent Claim
19 words
The method for surface treatment according to claim 14 wherein the amount of oxygen-cotaining wax is 3 to 10%.
Claim 17
Dependent Claim
25 words
The method for surface treatment according to claim 15 wherein said oxygen-containing wax is that which is prepared by reacting hydrocarbon wax with maleic anhydride.
Claim 18
Dependent Claim
17 words
The method for surface treatment according to claim 16 wherein said petroleum wax component comprises slack wax.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |