Patent US4207223A successfully refreshed from Google Patents.
US4207223A
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Paper sizing agents
Assignee: Huels AG
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Filing: 1978-11-07
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Granted: 1980-06-10
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Expires: 1998-11-07
Abstract
Abstract A paper sizing composition which comprises a mixture of A. An alkaline aqueous dispersion of acid-group containing aliphatic hydrocarbon resins prepared by polymerizing a C 4 - cut or a C 5 - cut or mixtures thereof, obtained during thermal cracking of a hydrocarbon stream and modifying the product by addition thereto of an unsaturated polycarboxylic acid anhydride, wherein the resins have an acid number between 10 and 130 and are present in the dispersion with a solids content of 10-70%; and B. An alkaline solution of a copolymer of an α, β-unsaturated polycarboxylic acid and a C 5 -α-olefin, wherein the solution has a solids content of 5-50% by weight; and wherein A and B are employed in a ratio of 91:1 to 1:99 relative to the solids content.
Inventors
- 👤 Felix Schulde
- 👤 Volker Kulisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:10
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/42; D21H17/43; C; C08; C08L; C08L57/00; C08L57/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
134 words
A paper sizing composition which comprises a mixture of A. An alkaline aqueous dispersion of acid-group containing aliphatic hydrocarbon resins prepared by polymerizing a C 4 -cut or a C 5 -cut or mixtures thereof, obtained thermal cracking of a hydrocarbon stream, and modifying the product by addition thereto of an unsaturated polycarboxylic acid anhydride, wherein said resins have an acid number between 10 and 130 and are present in said dispersion with a solids content of 10-70%, and B. an aqueous solution of a reaction product of a copolymer of an α, β-unsaturated polycarboxylic acid and a vinyl monomer with a basic reagent, wherein said solution has a solids content of 5-50 wt. %, and wherein A and B are employed in a ratio of 99:1 to 1:99 relative to the solids content.
Claim 2
Dependent Claim
134 words
A paper sizing composition which comprises a mixture of A. An alkaline aqueous dispersion of acid-group containing aliphatic hydrocarbon resins prepared by polymerizing a C 4 -cut or a C 5 -cut or mixtures thereof, obtained thermal cracking of a hydrocarbon stream, and modifying the product by addition thereto of an unsaturated polycarboxylic acid anhydride, wherein said resins have an acid number between 10 and 130 and are present in said dispersion with a solids content of 10-70%, and B. an aqueous solution of a reaction product of a copolymer of an α, β-unsaturated polycarboxylic acid and a vinyl monomer with a basic reagent, wherein said solution has a solids content of 5-50 wt. %, and wherein A and B are employed in a ratio of 99:1 to 1:99 relative to the solids content.
Claim 3
Dependent Claim
48 words
The composition of claim 1 wherein the hydrocarbon resin in said component A is obtained by polymerizing said C 4 -cut or C 5 -cut or mixtures thereof with a C 4 -raffinate which comprises isobutene, n-butene-1, cis-n-butene-2, trans-n-butene-2, n-butane, isobutane, and traces of butadiene or mixtures thereof.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein the hydrocarbon resins of said component A have an acid number between 30 and 60.
Claim 5
Dependent Claim
32 words
The composition of claim 1 wherein the aqueous dispersion in said component A further comprises up to 15% of a natural resin selected from the group consisting of colophonium and root resins.
Claim 6
Dependent Claim
19 words
The composition of claim 4 wherein said natural resin is present in an amount of from 3-5% by weight.
Claim 7
Dependent Claim
23 words
The composition of claim 1 wherein the aqueous dispersion in said component A further comprises up to 15% of a neutral hydrocarbon resin.
Claim 8
Dependent Claim
20 words
The composition of claim 6 wherein said neutral hydrocarbon resin is present in an amount of from 3-5% by weight.
Claim 9
Dependent Claim
22 words
The composition of claim 1 wherein the hydrocarbon resin in said component A is present in an amount of 10-60% by weight.
Claim 10
Dependent Claim
18 words
The composition of claim 8 wherein said resins are present in an amount of from 30-45% by weight.
Claim 11
Dependent Claim
18 words
The composition of claim 1 wherein the unsaturated polycarboxylic acid anhydride in said component A is maleic anhydride.
Claim 12
Dependent Claim
29 words
The composition of claim 1 wherein the α,β-unsaturated polycarboxylic acid in the copolymer of said component B is selected from the group consisting of maleic anhydride and fumaric acid.
Claim 13
Dependent Claim
57 words
The composition of claim 1 wherein the vinyl monomer in component B is selected from the group consisting of styrene, vinyl pyridine, vinyl alcohol, allyl alcohol, vinyl-alkyl ether, acrylic acid or methacrylic acid and the corresponding esters thereof, the corresponding amides thereof, the corresponding amides thereof, and the corresponding nitriles thereof, indene, cyclopentadiene, dicyclopentadiene, and mixtures thereof.
Claim 14
Dependent Claim
20 words
The composition of claim 1 wherein the solution in said component B has a solids content of 15-35% by weight.
Claim 15
Dependent Claim
22 words
The composition of claim 1 wherein the ratio of components A and B is 97:3 to 70:30 relative to the solids content.
Claim 16
Dependent Claim
16 words
The composition of claim 1 wherein said component B comprises a copolymer of styrene-maleic acid semi-amide.
Claim 17
Dependent Claim
50 words
The composition of claim 1 wherein the copolymer in said component B is used in the form of its reaction product in an aqueous or water-free medium with a basic component selected from the group consisting alkali metal hydroxides, alkali metal carbonates, ammonia, primary amines, secondary amines and mixtures thereof.
Claim 18
Independent Claim
141 words
A method of sizing paper by treating said paper with a composition which comprises a mixture of A. An alkaline aqueous dispersion of acid-group-containing aliphatic hydrocarbon resins prepared by polymerizing a C 4 -cut or a C 5 -cut or mixtures thereof, obtained during thermal cracking of a hydrocarbon stream, and modifying the product by addition thereto of an unsaturated polycarboxylic acid anhydride, wherein said resins have an acid number between 10 and 130 and are present in said dispersion with a solids content of 10-70%; and B. an aqueous solution of the reaction product of a copolymer of an α, β-unsaturated polycarboxylic acid and a vinyl monomer with a basic reagent, wherein said solution has a solids content of 5-50 wt.%; and wherein A and B are employed in a ratio of 91:1 to 1:99 relative to the solids content.
Claim 19
Independent Claim
141 words
A method of sizing paper by treating said paper with a composition which comprises a mixture of A. An alkaline aqueous dispersion of acid-group-containing aliphatic hydrocarbon resins prepared by polymerizing a C 4 -cut or a C 5 -cut or mixtures thereof, obtained during thermal cracking of a hydrocarbon stream, and modifying the product by addition thereto of an unsaturated polycarboxylic acid anhydride, wherein said resins have an acid number between 10 and 130 and are present in said dispersion with a solids content of 10-70%; and B. an aqueous solution of the reaction product of a copolymer of an α, β-unsaturated polycarboxylic acid and a vinyl monomer with a basic reagent, wherein said solution has a solids content of 5-50 wt.%; and wherein A and B are employed in a ratio of 91:1 to 1:99 relative to the solids content.
Claim 20
Dependent Claim
47 words
The method of claim 17 wherein the hydrocarbon resin in said component A is obtained by polymerizing said C 4 -cut or C 5 -cut or mixtures thereof with a C 4 -raffinate which comprises isobutene, n-butene-1, cis-n-butene-2, trans-n-butene-2, n-butene, isobutane, traces of butadiene or mixtures thereof.
Claim 21
Dependent Claim
21 words
The method of claim 17 wherein the hydrocarbon resins of said component A have an acid number between 30 and 60.
Claim 22
Dependent Claim
34 words
The method of claim 17 wherein the aqueous dispersion in said component A further comprises up to 15% by weight of a natural resin selected from the group consisting of colophonium and root resins.
Claim 23
Dependent Claim
18 words
The method of claim 20 wherein said natural resin is present in an amount of 3-5% by weight.
Claim 24
Dependent Claim
25 words
The method of claim 17 wherein the aqueous dispersion in said component A further comprises up to 15% by weight of a neutral hydrocarbon resin.
Claim 25
Dependent Claim
19 words
The method of claim 22 wherein said neutral hydrocarbon resin is present in an amount of 3-5% by weight.
Claim 26
Dependent Claim
22 words
The method of claim 17 wherein the hydrocarbon resins in said component A are present in an amount of 10-60% by weight.
Claim 27
Dependent Claim
18 words
The method of claim 24 wherein said hydrocarbon resins are present in an amount of 30-45% by weight.
Claim 28
Dependent Claim
18 words
The method of claim 17 wherein the unsaturated polycarboxylic acid anhydride in said component A is maleic anhydride.
Claim 29
Dependent Claim
30 words
The method of claim 17 wherein the α, β-unsaturated polycarboxylic acid in the copolymer of said component B is selected from the group consisting of maleic anhydride and fumaric acid.
Claim 30
Dependent Claim
50 words
The method of claim 17 wherein the vinyl monomer in component B is selected from the group consisting of styrene, vinyl pyridine, vinyl alcohol, allyl alcohol, vinyl-alkyl ether, methacrylic or acrylic acids, and the corresponding esters thereof, corresponding amides thereof, and corresponding nitriles thereof, indene, cyclopentadiene, dicyclopentadiene and mixtures thereof.
Claim 31
Dependent Claim
20 words
The method of claim 17 wherein the solution in said component B has a solids content of 15-30% by weight.
Claim 32
Dependent Claim
22 words
The method of claim 17 wherein the ratio of components A and B is 97:3 to 70:30 relative to the solids content.
Claim 33
Dependent Claim
16 words
The method of claim 17 wherein said component B comprises a copolymer of styrene-maleic acid semi-amide.
Claim 34
Dependent Claim
51 words
The method of claim 17 wherein the copolymer in said component B is used in the form of its reaction product in an aqueous or water-free medium with a basic component selected from the group consisting of alkali metal hydroxides, alkali metal carbonates, ammonia, primary amines, secondary amines and mixtures thereof.
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) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |