US3046160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating paper with silicones
Assignee: Wacker Chemie AG
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Filing: 1959-04-27
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Granted: 1962-07-24
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Dengler Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
B; B32; B32B; B32B27/00; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/59; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A PROCESS FOR PREPARING NON-ADHERENT PAPER CHARACTERIZED IN THAT THE PAPER FIBERS ARE TREATED WITH A MIXTURE OF (1) ROOM TEMPERATURE VULCANIZING SILICONE RUBBER STOCK COMPRISING (A) 100 PARTS BY WEIGHT OF AN ORGANOSILOXANE POLYMER OF THE FORMULA XO(R2SIO)NX WHEREIN EACH R IS AN ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS, EACH X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, ALKYL RADICALS AND ARYL RADICALS AND N IS AT LEAST 50, (B) 50-200 PARTS INORGANIC FILLER, (C) 0.5 TO 10 PARTS CROSS-LINKING AGENT AND (D) 0.1 TO 5 PARTS CONDENSATION CATALYST AND (2) A SILICONE RESIN FLUID CONSISTING ESSENTIALLY OF UNITS OF THE FORMULAE RSIO3/2 AND R2SIO WHERE R IS AS ABOVE DEFINED, THE AVERAGE R/SI RATIO IN SAID RESIN BEING IN THE RANGE FROM 1.0/1 TO 1.7/1.
Claim 2
Dependent Claim
135 words
A PROCESS FOR PREPARING NON-ADHERENT PAPER CHARACTERIZED IN THAT THE PAPER FIBERS ARE TREATED WITH A MIXTURE OF (1) ROOM TEMPERATURE VULCANIZING SILICONE RUBBER STOCK COMPRISING (A) 100 PARTS BY WEIGHT OF AN ORGANOSILOXANE POLYMER OF THE FORMULA XO(R2SIO)NX WHEREIN EACH R IS AN ORGANIC RADICAL SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL RADICALS, EACH X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, ALKYL RADICALS AND ARYL RADICALS AND N IS AT LEAST 50, (B) 50-200 PARTS INORGANIC FILLER, (C) 0.5 TO 10 PARTS CROSS-LINKING AGENT AND (D) 0.1 TO 5 PARTS CONDENSATION CATALYST AND (2) A SILICONE RESIN FLUID CONSISTING ESSENTIALLY OF UNITS OF THE FORMULAE RSIO3/2 AND R2SIO WHERE R IS AS ABOVE DEFINED, THE AVERAGE R/SI RATIO IN SAID RESIN BEING IN THE RANGE FROM 1.0/1 TO 1.7/1.
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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |