Patent US3297732A successfully refreshed from Google Patents.
US3297732A
Expired / Lapsed
US
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Process for preparing organotin halides
Assignee: M&T Chemicals Inc
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Filing: 1963-07-25
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Granted: 1967-01-10
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Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 Clarence K Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:24
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2208
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
THE PROCESS FOR PREPARING A COMPOUND RESNXF WHICH COMPRISES REACTING IN THE PRESENCE OF A CROSS-ALKYLATION CATALYST RASNXB WITH RCSNXD WHEREIN A,B,C,D, AND F ARE INTEGERS; THE SUM OF A AND B, C AND D, AND E AND F IS EACH EQUAL TO 4: C IS EQUAL TO AT LEAST TO A PLUS 2; A IS AN INTEGER FROM 0 TO 2; E IS AN INTEGER FROM 1 TO 3; X IS HALOGEN; AND R IS HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARALKYL, CYCLOALKYL, ARYL, AND ALKARYL; AND WITHDRAWING AS PRODUCT FROM THE REACTION MIXTURE THE COMPOUND RESNXF.
Claim 2
Dependent Claim
100 words
THE PROCESS FOR PREPARING A COMPOUND RESNXF WHICH COMPRISES REACTING IN THE PRESENCE OF A CROSS-ALKYLATION CATALYST RASNXB WITH RCSNXD WHEREIN A,B,C,D, AND F ARE INTEGERS; THE SUM OF A AND B, C AND D, AND E AND F IS EACH EQUAL TO 4: C IS EQUAL TO AT LEAST TO A PLUS 2; A IS AN INTEGER FROM 0 TO 2; E IS AN INTEGER FROM 1 TO 3; X IS HALOGEN; AND R IS HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARALKYL, CYCLOALKYL, ARYL, AND ALKARYL; AND WITHDRAWING AS PRODUCT FROM THE REACTION MIXTURE THE COMPOUND RESNXF.
Claim 3
Dependent Claim
70 words
THE PROCESS WHICH COMPISES REACTING IN THE PRESENCE OF A CROSS-ALKYLATION CATALYST ONE MOLE OF SNX4 WITH THREE MOLES OF R4SN TO PRODUCE A REACTION MIXTURE CONTAINING R3SNX WHEREIN R IS HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARALKYL, CYCLOALKYL, ARYL, AND ALKARYL, AND X IS HALIDE; SEPARATING SAID REACTION MIXTURE FROM SAID CATALYST; CAUSTICIZING SAID REACTION MIXTURE THEREBY FORMING R3SNOSNR3, AND RECOVERING SAID R3SNOSNR3 FROM SAID REACTION MIXTURE.
Claim 4
Dependent Claim
70 words
THE PROCESS WHICH COMPISES REACTING IN THE PRESENCE OF A CROSS-ALKYLATION CATALYST ONE MOLE OF SNX4 WITH THREE MOLES OF R4SN TO PRODUCE A REACTION MIXTURE CONTAINING R3SNX WHEREIN R IS HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARALKYL, CYCLOALKYL, ARYL, AND ALKARYL, AND X IS HALIDE; SEPARATING SAID REACTION MIXTURE FROM SAID CATALYST; CAUSTICIZING SAID REACTION MIXTURE THEREBY FORMING R3SNOSNR3, AND RECOVERING SAID R3SNOSNR3 FROM SAID REACTION MIXTURE.
References Cited (Backward Citations)
GB710224A
Cited
US3082230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |