← Back to Patent Explorer
US2881204A Expired / Lapsed US ⏱️ 0.0 years remaining

Oxyalkylated hydroxy compounds

Assignee: Visco Products Co
•
Filing: 1953-02-13
•
Granted: 1959-04-07
•
Expires: 1973-02-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Willard H Kirkpatrick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 01:57
CPC Classifications
C; C07; C07C; C07C235/00; C07C235/02; C07C235/04; C07C235/12; C07C309/00; C07C309/01; C07C309/28; C07C309/41; C07C309/42; C10; C10G; C10G33/00; C10G33/04; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 216 words
AN OXYALKYLATED ORGANIC COMPOUND FROM THE GROUP CONSISTING OF OXYALKYLATED HYDROXY CARBOLIC ACID ESTERS, OXYALKYLATED HYDROXY CARBOXYLATES, OXYALKYLATED HYDROXY CARBOXYLIC ACID AMIDES, OXYALKYLATED HYDROXY SULFONIC ACID ESTERS, OXYLKYLATED HYDRODY SULFONATES, AND OXYALKYLATED HYDROXY SULFONIC ACID AMIDES WHEREIN THERE ARE 1 TO 2 HYDRYXY GROUPS AND 1 TO 3 GROUPS FROM THE CLASS CONSISTING OF CARBOXY AND SULFONIC, AT LEAST ONE OF SAID HYDROXY GROUPS IS OXYALKYLATED AND THE OXYALKYL GROUPS CONSIST OF BOTH OXYETHYLENE AND OXYPROPYLENE GROUPS, WITH THE FURTHER PROVISOS THAT OXYPROPYLENE GROUPS CONSTITUTE AT LEAST 20% BY WEIGHT OF ALL OF THE OXYALKYLENE GROUPS IN SAID OXYALKYLATEDORGANIC COMPOUND, THAT THE WEIGHT RATIO OF OXYETHYLENE TO OXYPROPYLENE DOES NOT EXCEED 4:1, THAT THE WEIGHT RATIO OF OXYPROPYLENE TO OXYETHYLENE DOES NOT EXCEED 3:1, THAT THE HYDROXY CARBOXYLIC ACID ESTERS, THE HYDROXY CARBOXYLATES, THE HYDROXY CARBOXYLIC ACID AMIDES, THE HYDROXY FULFONIC ACID ESTERS, THE HYDROXY SULFONATES AND THE HYDROXY SULFONIC ACID AMIDES ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY, CARBOXY AND SULFONIC RADICALS WHEREIN ONLY THE HYDROXY GROUPS ARE OXYALKYLATED, THAT THE OXYALKYLATED GROUPS CONTAIN TERMINAL HYDROXY GROUPS, THAT AT LEAST 60% OF THE MOLECULAR WEIGHT OF THE EFFECTIVE OXYALKYLATED ORGANIC COMPOUND IS ATTRIBUTABLE TO OXYALKYLENE GROUPS AND THAT THE MOLECULAR WEIGHT IS AT LEAST 1000, THE TOTAL MOLECULAR WEIGHT OF SAID OXYALKYLATED ORGANIC COMPOUND NOT EXCEEDING 20,000.
Claim 2
Dependent Claim 216 words
AN OXYALKYLATED ORGANIC COMPOUND FROM THE GROUP CONSISTING OF OXYALKYLATED HYDROXY CARBOLIC ACID ESTERS, OXYALKYLATED HYDROXY CARBOXYLATES, OXYALKYLATED HYDROXY CARBOXYLIC ACID AMIDES, OXYALKYLATED HYDROXY SULFONIC ACID ESTERS, OXYLKYLATED HYDRODY SULFONATES, AND OXYALKYLATED HYDROXY SULFONIC ACID AMIDES WHEREIN THERE ARE 1 TO 2 HYDRYXY GROUPS AND 1 TO 3 GROUPS FROM THE CLASS CONSISTING OF CARBOXY AND SULFONIC, AT LEAST ONE OF SAID HYDROXY GROUPS IS OXYALKYLATED AND THE OXYALKYL GROUPS CONSIST OF BOTH OXYETHYLENE AND OXYPROPYLENE GROUPS, WITH THE FURTHER PROVISOS THAT OXYPROPYLENE GROUPS CONSTITUTE AT LEAST 20% BY WEIGHT OF ALL OF THE OXYALKYLENE GROUPS IN SAID OXYALKYLATEDORGANIC COMPOUND, THAT THE WEIGHT RATIO OF OXYETHYLENE TO OXYPROPYLENE DOES NOT EXCEED 4:1, THAT THE WEIGHT RATIO OF OXYPROPYLENE TO OXYETHYLENE DOES NOT EXCEED 3:1, THAT THE HYDROXY CARBOXYLIC ACID ESTERS, THE HYDROXY CARBOXYLATES, THE HYDROXY CARBOXYLIC ACID AMIDES, THE HYDROXY FULFONIC ACID ESTERS, THE HYDROXY SULFONATES AND THE HYDROXY SULFONIC ACID AMIDES ARE HYDROCARBONS SUBSTITUTED WITH HYDROXY, CARBOXY AND SULFONIC RADICALS WHEREIN ONLY THE HYDROXY GROUPS ARE OXYALKYLATED, THAT THE OXYALKYLATED GROUPS CONTAIN TERMINAL HYDROXY GROUPS, THAT AT LEAST 60% OF THE MOLECULAR WEIGHT OF THE EFFECTIVE OXYALKYLATED ORGANIC COMPOUND IS ATTRIBUTABLE TO OXYALKYLENE GROUPS AND THAT THE MOLECULAR WEIGHT IS AT LEAST 1000, THE TOTAL MOLECULAR WEIGHT OF SAID OXYALKYLATED ORGANIC COMPOUND NOT EXCEEDING 20,000.

References Cited (Backward Citations)

US2341846A Cited
US2307494A Cited
US2542550A Cited
US2610206A Cited
US2602087A Cited
US2562878A Cited
US2626911A Cited
US2599538A Cited
US2648703A Cited
US2745857A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-04-06 1962-10-06 1963-04-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-04-06 1966-10-06 1967-04-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-04-06 1970-10-06 1971-04-07 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag