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US3557045A Expired / Lapsed US ⏱️ 0.0 years remaining

Mixed thermosetting resin compositions containing polyphenylene ethers

Assignee: FMC Corp
•
Filing: 1967-11-13
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Granted: 1971-01-19
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Expires: 1987-11-13
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Abstract

Abstract THIS SPECIFICATION DISCLOSES THERMOSETTING RESIN COMPOSITIONS OF IMPROVED QUALITIES MADE BY COMBINING A HIGH-TEMPERATURE THERMOPLASTIC RESIN, I.E., A POLYPHENYLENE ETHER POLYMER, WITH ORGANIC MATERIALS CONTAINING POLYMERIZABLE CARBON TO CARBON UNSATURATION, PARTICULARLY DIALLYLIC PHTHALATE MONOMERS AND PREPOLYMERS. THESE POLYPHENYLENE ETHER POLYMERS COMBINE WITH POLYMERIZABLE MATERIALS CONTAINING CARBON TO CARBON UNSATURATION IN THE PRESENCE OF A FREE RADICAL CATALYST. THESE COMPOSITIONS ARE FORMED BY MODERATE HEAT AND PRESSURE INTO ARTICLES WITH EXCELLENT ELECTRICAL AND MECHANICAL PROPERTIES WHICH ARE RETAINED AT ELEVATED TEMPERATURES, AND UNDER CONDITIONS OF HIGH HUMIDITY.

Inventors

  • 👤 Carl L Wright
  • 👤 Harry H Beacham

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 13:13
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/28; B32B27/285; B32B15/00; B32B15/04; B32B15/08; C; C08; C08F; C08F263/00; C08F263/06; C08F263/08; C08F283/00; C08F283/06; C08F283/08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; B32B2307/00; B32B2307/20; B32B2307/206; B32B2605/00; B32B2605/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162; Y10T428/31678; Y10T428/31681

Claims Analysis

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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) 1974-01-18 1974-07-20 1975-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-18 1978-07-20 1979-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-18 1982-07-20 1983-01-19 $7700.00 Window Closed / Lapsed

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