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US3763197A Expired / Lapsed US ⏱️ 0.0 years remaining

Organo metallic compounds

Assignee: National Research Development Corp UK
•
Filing: 1970-07-14
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Granted: 1973-10-02
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Expires: 1990-07-14
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Abstract

Abstract ORGANO-METALLIC COMPOUNDS OF THE GENERAL FORMULA: LNM(CYM(M''R1R2R3)3-M)R WHERE M IS A TRANSITION METAL OF GROUP IV-A, V-A, VI-A, VII-A, VIII OR I-B OF THE PERIODIC TABLE OF THE ELEMENTS; M'' IS CARBON, SILICON, GERMANIUM, TIN, OR LEAD; WHERE M'' IS CARBON, R1, R2, R3 ARE ALKYL OR ARYL GROUPS AND MAY BE THE SAME OR DIFFERENT, AND WHERE M'' IS SILICON, GERMANIUM, TIN, OR LEAD, R1, R2 AND R3 ARE ALKYL, ARYL, ALKOXY, OR ARALKOXY GROUPS OR HALOGEN OR HYDROGEN ATOMS AND MAY BE THE SAME OR DIFFERENT; M IS 0, 1 OR 2; N IS 0 TO 4; LN IS THE SUM OF ALL OTHER LIGANDS (IF ANY) TO THE TRANSITION METAL, WHICH LIGANDS MAY BE THE SAME OR DIFFERENT; Y IS HYDROGEN, OR HALOGEN, OR AN ALKYL OR ARYL GROUP, AND WHEN M IS 2, THE TWO GROUPS Y MAY BE THE SAME OR DIFFERENT; R IS 1 TO 4 DEPENDING ON THE AVAILABLE VALENCIES OF THE TRANSISTION METAL. THE COMPOUNDS ARE USEFUL AS CATALYSTS FOR OLEFINE POLYMERISATION, ISOMERISATION AND OLIGOMERSATION, AND FOR HYDROGENATION, DEHYDROGENATION, HYDROFORMYLATION AND HYDROSILYLATION REACTIONS.

Inventors

  • 👤 M Collier
  • 👤 B Kingston
  • 👤 M Lappert
  • 👤 M Truelock

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 09:19
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/122; B01J31/16; B01J31/1608; C07F11/00; C07F15/0006; C07F15/0073; C07F15/0086; C07F15/02; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/28; C07F9/00; C07F9/02; B01J2231/00; B01J2231/10; B01J2231/12; B01J2231/20; B01J2231/30; B01J2231/32; B01J2231/321; B01J2231/323; B01J2231/50; B01J2231/52; B01J2231/60; B01J2231/64; B01J2231/641; B01J2531/00; B01J2531/40; B01J2531/46; B01J2531/48; B01J2531/60; B01J2531/64; B01J2531/66; B01J2531/80; B01J2531/82; B01J2531/822; B01J2531/828; B01J2531/84; B01J2531/842; B01J2531/847

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) 1976-10-01 1977-04-02 1977-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-10-01 1981-04-02 1981-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-10-01 1985-04-02 1985-10-02 $7700.00 Window Closed / Lapsed

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