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US2561814A Expired / Lapsed US ⏱️ 0.0 years remaining

Potentially reactive curable polymers

Assignee: Hexion Inc
•
Filing: 1944-11-21
•
Granted: 1951-07-24
•
Expires: 1964-11-21
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Abstract

No abstract record available.

Inventors

  • 👤 Emil E Novotny
  • 👤 Vogelsang George Karl
  • 👤 Ernest E Novotny

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:45
CPC Classifications
C; C08; C08K; C08K5/00; C08B; C08B15/00; C08G; C08G69/00; C08G69/48; C08G69/50; C08L; C08L1/00; C08L1/08; C08L77/00; C08L89/00; C08L89/005; C08L89/04; C08L89/06; C08L93/00; C08L95/00; Y; Y10; Y10S; Y10S36/00; Y10S36/02

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 290 words
POTENTIALLY REACTIVE CURABLE COMPOSITIONS CONSISTING OF A CURING AGENT SELECTED FROM THE CLASS CONSISTING OF THE SUBSTANTIALLY FULLY SATURATED HALOGENATION ADDITION PRODUCTS OF THE ALDEHYDES OF THE MONO HETERO ATOMIC FIVE MEMBERED RINGS AND THEIR PARTIALLY DEHALOGENATED REACTIVE DERIVATIVES, IN ADMIXTURE WITH A POLYMERIC ORGANIC COMPOUND CONTAINING WITHIN ITS STRUCTURE, ATTACHED VIA COVALENT BONDS, A PLURALITY OF FUNCTIONALLY REACTIVE ATOMIC GROUPS KNOWN TO BE REACTIVE WITH SAID CURING AGENT SAID REACTIVITY BEING DETERMINED BY BRINGING ANY COMPOUND "XY" INTO CONTACT WITH SAID CURING AGENT, WHERE "X" DENOTES A NON-REACTIVE RESIDUE AND "Y" DENOTES SUCH GROUPS TESTED AND THE PRESENCE OF "Y" BRINGING ABOUT A REACTION, SAID REACTIVE ATOMIC GROUPS BEING PRESENT IN THE POLYMERIC ORGANIC COMPOUND IN THE PROPORTION OF AT LEAST ONE SUCH GROUP PER THOUSAND ATOMS OF THE SAID POLYMERIC ORGANIC COMPOUND, SAID SUBSTANTIALLY FULLY SATURATED HALOGENATION ADDITION PRODUCTS OF THE ALDEHYES OF THE MONO HETERO ATOMIC FIVE MEMBERED RINGS PRODUCED BY THE METHOD WHICH COMPRISES THE STEPS OF DILUTING ONE OR MORE OF SAID ALDEHYDES WITH A SOLVENT IN PROPORTION OF AT LEAST ONE MOLE OF SAID SOLVENT TO EACH MOLE OF SAID ALDEHYDE, AND THEN RAPIDLY INTRODUCING HALOGEN INTO THE SOLUTION WHILE MAINTAINING THE TEMPERATURE THEREOF BELOW THE POINT OF SPONTANEOUS DECOMPOSITION UNTIL THE ALDEHYDE HAS TAKEN UP SUBSTANTIALLY FOUR ATOMS OF HALOGEN PER MOLECULE OF ALDEHYDE AND THE POINT OF SUBSTANTIAL SATURATION HAS BEEN REACHED, AND THE SAID PARTIALLY DEHALOGENATED REACTIVE DERIVATIVES PRODUCED BY THE METHOD WHICH COMPRISES DEHALOGENATING THE SAID FULLY SATURATED HALOGENATED ADDITION PRODUCTS TO A POINT WHERE THE AVERAGE HALOGEN CONTENT OF THE RESULTANT PARTIAL DEHALOGENATION PRODUCT IS EQUAL TO NOT LESS THAN ONE ATOM OF HALOGEN PER MOLECULE OF ALDEHYDE THAT ENTERED INTO THE MAKING OF SAID SATURATION HALOGENATION ADDITION PRODUCTS.

References Cited (Backward Citations)

US2366049A Cited
US1682934A Cited
US2269217A Cited
US2269216A Cited
US2288588A Cited
US2345966A Cited
US2490462A Cited
US2475801A Cited
US2423139A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-07-23 1955-01-22 1955-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-07-23 1959-01-22 1959-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-07-23 1963-01-22 1963-07-24 $7700.00 Window Closed / Lapsed

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