US2705205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing compositions and method of using the same
Assignee: Shell Development Co
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Filing: 1951-08-23
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Granted: 1955-03-29
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Expires: 1971-08-23
Abstract
No abstract record available.
Inventors
- 👤 Robert D Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A PROCESS OF SIZING FIBROUS MATERIALS WHEREIN SIZE PARTICLES ARE PRECIPITATED ON SAID MATERIALS FORM AN AQUEOUS EMULSION, THE IMPROVEMENT WHICH COMPRISES USING AS THE SIZE A MIXTURE OF EMULSIFIER AND CYCLIC PETROLEUM COMPONENTS IN THE PROPORTIONS OF 5 TO 40 PARTS OF SAID EMULSIFIER TO 30 TO 85 PARTS OF CYCLIC PETROLEUM COMPONENTS, SAID CYCLIC PETROLEUM COMPONENTS HAVING A VISCOSITY VARYING FROM ABOUT 10 CS. AT 210*F. UP TO SOLID COMPOSITIONS SOFTENING AT ABOUT 200* F., AN INITIAL BOILING POINT OF AT LEAST 300* F. AT 1 MM. PRESSURE OF MERCURY, AND A SPECIFIC GRAVITY (D 20/4) OF 0.9 TO 1.05 AND CONTAINING NOT MORE THAN 25% OF PARAFFIN OIL, TOGETHER WITH FROM ABOUT 5 TO 40%. IN TERMS OF THE WEIGHT OF THE NONAQUEOUS PORTION OF THE EMULSION, OF PARAFFIN WAX HAVING A MELTING POINT OF 155* F. TO ABOUT 170* F. AND CONTAINING AT LEAST 55% STRAIGHT CHAIN HYDROCARBONS.
Claim 2
Dependent Claim
153 words
IN A PROCESS OF SIZING FIBROUS MATERIALS WHEREIN SIZE PARTICLES ARE PRECIPITATED ON SAID MATERIALS FORM AN AQUEOUS EMULSION, THE IMPROVEMENT WHICH COMPRISES USING AS THE SIZE A MIXTURE OF EMULSIFIER AND CYCLIC PETROLEUM COMPONENTS IN THE PROPORTIONS OF 5 TO 40 PARTS OF SAID EMULSIFIER TO 30 TO 85 PARTS OF CYCLIC PETROLEUM COMPONENTS, SAID CYCLIC PETROLEUM COMPONENTS HAVING A VISCOSITY VARYING FROM ABOUT 10 CS. AT 210*F. UP TO SOLID COMPOSITIONS SOFTENING AT ABOUT 200* F., AN INITIAL BOILING POINT OF AT LEAST 300* F. AT 1 MM. PRESSURE OF MERCURY, AND A SPECIFIC GRAVITY (D 20/4) OF 0.9 TO 1.05 AND CONTAINING NOT MORE THAN 25% OF PARAFFIN OIL, TOGETHER WITH FROM ABOUT 5 TO 40%. IN TERMS OF THE WEIGHT OF THE NONAQUEOUS PORTION OF THE EMULSION, OF PARAFFIN WAX HAVING A MELTING POINT OF 155* F. TO ABOUT 170* F. AND CONTAINING AT LEAST 55% STRAIGHT CHAIN HYDROCARBONS.
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) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |