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US3069280A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluorine-containing waxes and process for preparing them

Assignee: EIDP Inc
•
Filing: 1960-02-23
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Granted: 1962-12-18
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Expires: 1980-02-23
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Abstract

No abstract record available.

Inventors

  • 👤 Spiegler Louis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:51
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 174 words
A WAX CONTAINING FROM ABOUT 56% TO ABOUT 70% BY WEIGHT OF FLUORINE WHICH CONSISTS ESSENTIALLY OF A MIXTURE OF (1) ABOUT 50% TO ABOUT 80% BY WEIGHT OF THE REACTION PRODUCT OF TETRAFLUOROETHYLENE AND AT LEAST ONE SILICON COMPOUND OF THE GROUP CONSISTING OF A POLY (DIMETHYL SILOXANE) HAVING A MOLECULAR WEIGHT IN THE RANGE OF FROM 162 TO ABOUT 26,000 AND A SILANE OF THE FORMULA R4SI WHEREIN EACH R REPRESENTS A MEMBER OF THE GROUP CONSISTING OF ALKYL RADICALS OF 1 TO 4 CARBONS ATOMS AND ALKOXY RADICALS OF 1 TO 4 CARBON ASTOMS, AT LEAST ONE R BEING AN ALKYL RADICAL, WHICH REACTION PRODUCT CONTAINS FROM ABOUT 8 TO ABOUT 40 TETRAFLUOROETHYLENE UNITS FOR EACH SILICON ATOM WHICH UNITS FORM POLYFLUOROALKYL CHAINS ATTACHED TO CARBON ATOMS OF THE SILICON COMPOUND, AND (2) ABOUT 50% TO ABOUT 20% BY WEIGHT OF THE TELOMER OF TETRAFLUOROETHYLENE AND A SATURATED FLUOROCHLORO COMPOUND OF THE GROUP CONSISTING OF 1,1,1-TRICHLOROTRIFLUOROETHANE, 1,1,2 - TRICHLOROTRIFLUOROETHANE, FLUOROTRICHLOROMETHANE AND 1,2-DIFLUOROTETRACHLOROETHANE, WHICH TELOMER CONTAINS A POLYFLUOROALKYL GROUP OF THE FORMULA

References Cited (Backward Citations)

DE1067598B Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-12-17 1966-06-18 1966-12-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-12-17 1970-06-18 1970-12-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-12-17 1974-06-18 1974-12-18 $7700.00 Window Closed / Lapsed

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