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US3737465A Expired / Lapsed US ⏱️ 0.0 years remaining

Bis-methylol compounds

Assignee: BP Corp North America Inc
•
Filing: 1969-12-16
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Granted: 1973-06-05
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Expires: 1989-12-16
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Abstract

Abstract NOVEL COMPOUNDS HAVING TWO TERMINAL HYDROXYMETHYL5-ALKYLBENZYL SUBSTITUENTS AND HAVING ALL ALKYL-SUBSTITENTS OF MOLECULAR WEIGHT UPWARD FROM ABOUT 400 ARE OBTAINED BY A STRONG ALKALI PROMOTED CONDENSATION OF 4-ALKYLPHENOL WITH FORMALDEHYDE. BECAUSE OF THE PRESENCE OF TWO HYDROXYMETHYL (METHYLOL) SUBSTITUTED ALKYLHYDROXYBENZYL GROUPS, THESE COMPOUNDS CAN BE CONSIDERED AS BIS-METHYLOLS SINCE THEY ARE MORE REACTIVE AS DIOLS THAN POLYPHENOLS. THESE COMPOUNDS THROUGH THEIR METHYLOL SUBSTITUENTS REACT WITH A COMPOUND HAVING AT LEAST ONE HN< GROUP TO FORM NOVEL OIL SOLUBLE AMINE PRODUCTS WHICH IMPART DETERGENCY-DISPERSANCY AND ANTIOXIDANT PROPERTIES TO THE OIL IN WHICH THEY ARE DISSOLVED. THEY ALSO REACT WITH MONO-ACIDS TO FORM SIMPLE DIESTRS, WITH DIBASIC ACIDS TO FORM HIGH MOLECULAR WEIGHT POLYESTERS, WITH AMMONIA TO FORM HIGH MOLECULAR WEIGHT AMINES HAVING SECONDARY AMINO GROUPS BRIDGING IN A CHAIN AND EVEN TERMINAL AMINO METHYL GROUPS AND WITH ALKYLENE DI- AND POLYAMINES TO FORM MORE COMPLEX OIL SOLUBLE AMINES WHICH AS SOLUTES IMPART TO SOLVENT OIL ANTI-OXIDANT, DETERGENT--DISPERSANT PROPERTIES.

Inventors

  • 👤 R Karll
  • 👤 E Piasek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:54
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07C39/00; C07C39/12; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/19; C08G63/193; C08G63/52; C08G63/54; C08G63/547; C08G73/00; C08G73/02; C10; C10M; C10M129/00; C10M129/86; C10M129/88; C10M129/91; C10M149/00; C10M149/12; C10M149/14; C10M2209/00; C10M2209/10; C10M2209/101; C10M2209/102; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04

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) 1976-06-04 1976-12-04 1977-06-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-04 1980-12-04 1981-06-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-04 1984-12-04 1985-06-05 $7700.00 Window Closed / Lapsed

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