Patent US3002946A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3002946A Expired / Lapsed US ⏱️ 0.0 years remaining

Coating composition of polysiloxane resin and two polysiloxane fluids

Assignee: Dow Silicones Corp
•
Filing: 1957-11-25
•
Granted: 1961-10-03
•
Expires: 1977-11-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Robert N Thomas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:06
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/08; C; C09; C09D; C09D183/00; C09D183/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 183 words
A CURED COATING COMPOSITION CONSISTING ESSENTIALLY OF (1) FROM 80 TO 98 PERCENT BY WEIGHT OF A PHENYL METHYL SILOXANE RESIN WITH A TOTAL PER SILICON ATOM OF FROM 1 TO 1.7 HYDROCARBON RADICALS SELECTED FROM THE GROUP CONSISTING OF PHENYL, METHYL AND ETHYL RADICALS, (2) FROM 1 TO 10 PERCENT BY WEIGHT OF A PHENYL METHYL SILOXANE FLUID WHICH HAS PER SILICON ATOM FROM 1.99 TO 2.0. HYDROCARBON RADICALS SELECTED FROM THE GROUP CONSISTING OF PHENYL, METHYL AND ETHYL RADICALS AND WHICH CONTAINS AT LEAST ONE PERCENT BY WEIGHT OF SILICON-BONDED HYDROXYL GROUPS AND (3) FROM 1 TO 10 PERCENT BY WEIGHT OF A SILOXANE FLUID IN WHICH THE SILICON VALENCES NOT SATISFIED BY THE SILOXANE LINKAGE ARE SATISHED BY MONOVALENT HYDROCARBON RADICALS, THERE BEING AT LEAST TWO MONOVALENT HYDROCARBON RADICALS PER SILICON ATOM AND IN WHICH FLUID AT LEAST 75 MOL PERCENT OF THE DIORGANOSILOXANE UNITS ARE DIMETHYLSILOXANE UNITS, SAID FLUID (3) BEING INCOMPATIBLE WITH (1) AND (2), HAVING A VISCOSITY AT 25*C. OF NOT MORE THAN 1,000,000 CS. AND HAVING A VAPOR PRESSURE OF LESS THAN 20MM. HG AT 300*C.
Claim 2
Dependent Claim 183 words
A CURED COATING COMPOSITION CONSISTING ESSENTIALLY OF (1) FROM 80 TO 98 PERCENT BY WEIGHT OF A PHENYL METHYL SILOXANE RESIN WITH A TOTAL PER SILICON ATOM OF FROM 1 TO 1.7 HYDROCARBON RADICALS SELECTED FROM THE GROUP CONSISTING OF PHENYL, METHYL AND ETHYL RADICALS, (2) FROM 1 TO 10 PERCENT BY WEIGHT OF A PHENYL METHYL SILOXANE FLUID WHICH HAS PER SILICON ATOM FROM 1.99 TO 2.0. HYDROCARBON RADICALS SELECTED FROM THE GROUP CONSISTING OF PHENYL, METHYL AND ETHYL RADICALS AND WHICH CONTAINS AT LEAST ONE PERCENT BY WEIGHT OF SILICON-BONDED HYDROXYL GROUPS AND (3) FROM 1 TO 10 PERCENT BY WEIGHT OF A SILOXANE FLUID IN WHICH THE SILICON VALENCES NOT SATISFIED BY THE SILOXANE LINKAGE ARE SATISHED BY MONOVALENT HYDROCARBON RADICALS, THERE BEING AT LEAST TWO MONOVALENT HYDROCARBON RADICALS PER SILICON ATOM AND IN WHICH FLUID AT LEAST 75 MOL PERCENT OF THE DIORGANOSILOXANE UNITS ARE DIMETHYLSILOXANE UNITS, SAID FLUID (3) BEING INCOMPATIBLE WITH (1) AND (2), HAVING A VISCOSITY AT 25*C. OF NOT MORE THAN 1,000,000 CS. AND HAVING A VAPOR PRESSURE OF LESS THAN 20MM. HG AT 300*C.

References Cited (Backward Citations)

US2037029A Cited
US2558294A Cited
US2462242A Cited
US2672104A Cited
US2814601A Cited
US2728736A Cited
US2819236A Cited
US2793197A Cited
US2833441A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-10-02 1965-04-03 1965-10-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-10-02 1969-04-03 1969-10-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-10-02 1973-04-03 1973-10-03 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag