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US3814718A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermosetting moulding compositions

Assignee: Hoechst AG Werk Kalle Albert
•
Filing: 1972-11-15
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Granted: 1974-06-04
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Expires: 1992-11-15
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Abstract

Abstract A THERMOSETTING MOULDING COMPOSITION COMPRISING (A) AN UNSATURATED POLYESTER, (b) A COMPOLYMERIZABLE MONOMER, (C) A FILLER OR REINFORCING SUBSTANCE, (D) A CATALYST AND (E) A MOULD-RELEASE AGENT OR A COMBINATION THEREOF WITH A LUBRICANT (F) A COMPOUND OF THE FORMULA R2-N(-R3)-R1-N(-R4)-R5 WHEREIN R1 IS ALKYLENE HAVING 1 TO 8 CARBON ATOMS, ARYLENE HAVING 6 TO 12 CARBON ATOMS, DIARYLENE-ALKENE, DIARYLENESULPHONE OR CYCLOALKYLENE HAVING 5 TO 8 CARBON ATOMS, R2 TO R5 ARE THE SAME OR DIFFERENT AND ARE HYDROXYLTERMINATED POLY(OXYALKYLENE) GROUP DERIVED FROM ONE OR MORE ALKYLENE OXIDES EACH CONTAINING 2 TO 3 CARBON ATOMS, A PROCESS FOR ITS PREPARATION AND MOULDED BODY PREPARED THEREFROM.

Inventors

  • 👤 W Busch
  • 👤 S Mullner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 05:42
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6858; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/0457; C08L; C08L67/00; C08L67/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-03 1977-12-03 1978-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-03 1981-12-03 1982-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-03 1985-12-03 1986-06-04 $7700.00 Window Closed / Lapsed

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