US3847637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable wax sizing composition and method of sizing cellulosic fiber products
Assignee: WOOD FIBER INDUSTRIES Inc 1 SOUTH WACKER DR CHICAGO ILL 60606 A CORP OF
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Filing: 1973-02-26
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Granted: 1974-11-12
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Expires: 1993-02-26
Abstract
Abstract A stable aqueous wax emulsion sizing composition comprising a continuous aqueous phase; a waxy material dispersed phase containing up to about 45 percent by weight of wax; about 10-15 percent by weight based on the weight of the waxy material of clay; and a small amount of sulfuric acid. The sizing composition may be applied to a variety of cellulosic products of a fibrous nature to render the finished product water-resistant or waterproof.
Inventors
- 👤 M Luszczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:09
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/51; D06M11/55; C; C08; C08L; C08L91/00; C08L91/06; D06M11/77; D06M11/79; D06M13/00; D06M13/02; D21; D21H; D21H17/00; D21H17/60; D21H17/63; D21H17/67; D21H17/68
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
A STABLE, AQUEOUS WAX EMULSION SIZING COMPOSITION CONSISTING ESSENTIALLY OF: A. A CONTINUOUS AQUEOUS PHASE: B. A DISPERSED WAXY MATERIAL PHASE CONTAINING UP TO ABOUT 45 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF SCALE WAX; C. ABOUT 10-15 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE WAXY MATERIAL, OF CLAY; AND D. AN AMOUNT OF SULFURIC ACID EFFECTIVE TO FACILITATE EMULSIFICATION OF SAID WAX.
Claim 2
Dependent Claim
69 words
A STABLE, AQUEOUS WAX EMULSION SIZING COMPOSITION CONSISTING ESSENTIALLY OF: A. A CONTINUOUS AQUEOUS PHASE: B. A DISPERSED WAXY MATERIAL PHASE CONTAINING UP TO ABOUT 45 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE COMPOSITION, OF SCALE WAX; C. ABOUT 10-15 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE WAXY MATERIAL, OF CLAY; AND D. AN AMOUNT OF SULFURIC ACID EFFECTIVE TO FACILITATE EMULSIFICATION OF SAID WAX.
Claim 3
Dependent Claim
19 words
A stable, aqueous wax emulsion as set forth in claim 1, wherein the wax comprises a crude scale wax.
Claim 4
Dependent Claim
25 words
A stable, aqueous wax emulsion as set forth in claim 2 wherein the crude scale wax contains about 0.1 to about 10 percent oil content.
Claim 5
Dependent Claim
24 words
A stable, aqueous wax emulsion as set forth in claim 2 wherein the crude scale wax contains more than about 2 percent oil content.
Claim 6
Dependent Claim
19 words
A stable, aqueous wax emulsion as set forth in claim 1, wherein the clay is a non-swelling bentonite clay.
Claim 7
Dependent Claim
38 words
A stable, aqueous wax emulsion as set forth in claim 1, wherein the amOunt of sulfuric acid is in the order of about 1/2 to about 1 percent by weight, based on the weight of the waxy material.
Claim 8
Dependent Claim
87 words
A stable, aqueous wax emulsion sizing composition consisting essentially of a continuous aqueous phase; up to about 45 percent by weight, based on the weight of the composition, of a crude scale wax containing on the order of about 2 to about 10 percent by weight oil content; about 10-15 percent by weight, based on the weight of the wax, of non-swelling bentonite clay; and on the order of about 1/2 to about 1 percent by weight, based on the weight of the wax, of sulfuric acid.
Claim 9
Dependent Claim
87 words
A stable, aqueous wax emulsion sizing composition consisting essentially of a continuous aqueous phase; up to about 45 percent by weight, based on the weight of the composition, of a crude scale wax containing on the order of about 2 to about 10 percent by weight oil content; about 10-15 percent by weight, based on the weight of the wax, of non-swelling bentonite clay; and on the order of about 1/2 to about 1 percent by weight, based on the weight of the wax, of sulfuric acid.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |