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US3708543A Expired / Lapsed US ⏱️ 0.0 years remaining

Allyl acetal derivative of 1-halo-3-mercapto-2-propanol

Assignee: Dow Chemical Co
•
Filing: 1971-08-09
•
Granted: 1973-01-02
•
Expires: 1991-08-09
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Abstract

Abstract COMPOUNDS OF THE STRUCTURE R(SCH2CHOHCH2X)N WHEN N=1 TO 4 AND R IS HYDROCARBON, ETHER, ESTER, ACETAL, HYDROXY ALIPHATIC, HYDROXY AROMATIC, IMIDE OR AMIDE GROUP OR HALOGENATED DERIVATIVES THEREOF ARE PREPARED BY REACTING 1-HALO-3-MERCAPTO-2-PROPANOL WITH AN ALIPHATICALLY UNSATURATED COMPOUND USING FREE RADICAL INITIATORS AS CATALYSTS. THE COMPOUNDS IN WHICH R IS AN UNSATURATED ALIPHATIC HYDROCARBON GROUP OF 2 TO 24 CARBON ATOMS, OR AN UNSATURATED CYCLOALIPHATIC GROUP, AND THOSE IN WHICH THE ALIPHATIC OR CYCLOALIPHATIC GROUP IS CONNECTED TO TWO OR MORE -S-CH2CHOHCHCL GROUPS, AND COMPOUNDS WHERE R IS AN ALKYLENE SUBSTITUTED AROMATIC GROUP AND HYDROXY, THIOALKYL, ALKOXY, ARYLOXY, ESTER, CARBAMIDOALKYL AND SULFAMIDOALKYL, HAOGENATED DERIVATIVES OF SAID GROUPS ARE NEW COMPOUNDS. THE THIOETHER HALOHYDRINS CAN BE CONVERTED TO EPOXIDES. THE PROCESS UTILIZING A RADIOACTIVE ENERGY SOURCE AS A CATALYST IS NEW.

Inventors

  • 👤 R Hickner
  • 👤 C Bredeweg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 20:01
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/18; B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; C07C; C07C323/00; C07C323/10; C07C323/11; C07C323/12; C07D303/00; C07D303/02; C07D303/34; C07D307/10; C07C2601/00; C07C2601/12; C07C2601/14; C07C2601/16; C07C2602/00; C07C2602/02; C07C2602/14; C07C2602/20; C07C2602/36; C07C2602/42

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) 1976-01-02 1976-07-03 1977-01-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-02 1980-07-03 1981-01-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-02 1984-07-03 1985-01-02 $7700.00 Window Closed / Lapsed

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