US3294847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of ethercontaining chlorides
Assignee: Rohm and Haas Co
•
Filing: 1962-09-11
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Granted: 1966-12-27
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Robert L Albright
- 👤 Charles H Mckeever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:28
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/18; C07C41/22; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/126; C07C43/14; C07C43/17; C07C43/174; C07C43/1745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A METHOD FOR THE PREPARATION OF A COMPOUND HAVING THE FORMULA R''(OCH2CH2)NCL WHICH COMPRISES ADDING PROSPHORUS TRICHLORIDE TO A COMPOUND HAVING THE FORMULA R(OCH2CH2)NOH AT A TEMPERATURE OF ABOUT 0* TO 90* C, AND THEN HEATING THE REACTION MIXTURE IN THE PRESENCE OF AN AMOUNT OF HYDROGEN CHLORIDE AT LEAST EQUAL TO THE AMOUNT FORMED IN THE REACTION TO A TEMPERATURE OF ABOUT 80* TO 200* C., THE REACTION BEING CONDUCTED AT PRESSURES OF SUBSTANTIALLY AT LEAST ATMOSPHERIC IN WHICH N IS AN INTEGER OF FROM ONE TO TWENTY, R IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF ALKYL OF ONE TO EIGHT CARBON ATOMS, ARYL OF SIX TO TEN CARBON ATOMS, ALKYLARYL OF 7 TO 18 CARBON ATOMS, ARYLALKYL OF 7 TO 10 CARBON ATOMS, HOCH2CH2-OR CICH2CH2- AND R'' IS ALKYL OF ONE TO EIGHT CARBON ATOMS, ARYL OF SIX TO TEN CARBON ATOMS, ARYLALKYL OF 7 TO 10 CARBON ATOMS, ALKYLARYL OF 7 TO 18 CARBON ATOMS, OR CICH2CH2-, WHEREIN SAID R OF THE REACTANT CORRESPONDS TO SAID R'' OF THE PRODUCT EXPECT THAT WHEN SAID R REPRESENTS HOCH2CH2-, SAID R'' REPRESENTS CICH2CH2-.
Claim 2
Independent Claim
186 words
A METHOD FOR THE PREPARATION OF A COMPOUND HAVING THE FORMULA R''(OCH2CH2)NCL WHICH COMPRISES ADDING PROSPHORUS TRICHLORIDE TO A COMPOUND HAVING THE FORMULA R(OCH2CH2)NOH AT A TEMPERATURE OF ABOUT 0* TO 90* C, AND THEN HEATING THE REACTION MIXTURE IN THE PRESENCE OF AN AMOUNT OF HYDROGEN CHLORIDE AT LEAST EQUAL TO THE AMOUNT FORMED IN THE REACTION TO A TEMPERATURE OF ABOUT 80* TO 200* C., THE REACTION BEING CONDUCTED AT PRESSURES OF SUBSTANTIALLY AT LEAST ATMOSPHERIC IN WHICH N IS AN INTEGER OF FROM ONE TO TWENTY, R IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF ALKYL OF ONE TO EIGHT CARBON ATOMS, ARYL OF SIX TO TEN CARBON ATOMS, ALKYLARYL OF 7 TO 18 CARBON ATOMS, ARYLALKYL OF 7 TO 10 CARBON ATOMS, HOCH2CH2-OR CICH2CH2- AND R'' IS ALKYL OF ONE TO EIGHT CARBON ATOMS, ARYL OF SIX TO TEN CARBON ATOMS, ARYLALKYL OF 7 TO 10 CARBON ATOMS, ALKYLARYL OF 7 TO 18 CARBON ATOMS, OR CICH2CH2-, WHEREIN SAID R OF THE REACTANT CORRESPONDS TO SAID R'' OF THE PRODUCT EXPECT THAT WHEN SAID R REPRESENTS HOCH2CH2-, SAID R'' REPRESENTS CICH2CH2-.
References Cited (Backward Citations)
US2837574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |