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US3695952A Expired / Lapsed US ⏱️ 0.0 years remaining

Solid propellant compositions containing hydroxymethyl-terminated polydienes

Assignee: United States Department of the Army
•
Filing: 1964-04-30
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Granted: 1972-10-03
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Expires: 1984-04-30
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Abstract

Abstract 1. A SOLID COMPOSITE PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF A CURED INTIMATE ADMIXTURE OF AT LEAST ONE HYDROXYMETHYL-TERMINATED POLYDIENE CURED THROUGH THE URETHANE LINKAGE WITH AT LEAST ONE ORGANIC POLYISOCYANATE CURING AGENT; AND AT LEAST ONE POWDERED INORGANIC OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC CHROMATES, INORGANIC PERMANGANATES, INORGANIC NITRATES, INORGANIC CHLORATES, AND INORGANIC PERCHLORATES; SAID HYDROXYMETHYL-TERMINATED POLYDIENE CORRESPONDING TO THE FORMULA HO-CH2-R-(CH2-C(-R'')=C(-R")-CH(-R"''))X-R-CH2-OH WHEREIN R'', R", AND R"'' ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, LOWER ALKYL, LOWER ALKOXY, HALO, ARYL, LOWER ALKYL SUBSTITUTED ARYL, LOWER ALKOXY SUBSTITUTED ARYL, HALO SUBSTITUTED ARYL, AND ARALKYL; R IS SELECTED FROM THE GROUP CONSISTING OF TETRAMETHYLENE, PENTASMETHYLENE, AND HEXAMETHYLENE; AND X IS A POSITIVE WHOLE NUMBER GREATER THAN ONE SUCH THAT THE AVERAGE MOLECULAR WEIGHT OF SAID POLYDIENE IS FROM ABOUT 2,000 TO ABOUT 10,000.

Inventors

  • 👤 Henry C Allen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 16:15
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 63 words
A SOLID COMPOSITE PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF A CURED INTIMATE ADMIXTURE OF AT LEAST ONE HYDROXYMETHYL-TERMINATED POLYDIENE CURED THROUGH THE URETHANE LINKAGE WITH AT LEAST ONE ORGANIC POLYISOCYANATE CURING AGENT; AND AT LEAST ONE POWDERED INORGANIC OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC CHROMATES, INORGANIC PERMANGANATES, INORGANIC NITRATES, INORGANIC CHLORATES, AND INORGANIC PERCHLORATES; SAID HYDROXYMETHYL-TERMINATED POLYDIENE CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim 63 words
A SOLID COMPOSITE PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF A CURED INTIMATE ADMIXTURE OF AT LEAST ONE HYDROXYMETHYL-TERMINATED POLYDIENE CURED THROUGH THE URETHANE LINKAGE WITH AT LEAST ONE ORGANIC POLYISOCYANATE CURING AGENT; AND AT LEAST ONE POWDERED INORGANIC OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF INORGANIC CHROMATES, INORGANIC PERMANGANATES, INORGANIC NITRATES, INORGANIC CHLORATES, AND INORGANIC PERCHLORATES; SAID HYDROXYMETHYL-TERMINATED POLYDIENE CORRESPONDING TO THE FORMULA

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-03 1976-04-03 1976-10-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-03 1980-04-03 1980-10-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-03 1984-04-03 1984-10-03 $7700.00 Window Closed / Lapsed

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