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US2727918A Expired / Lapsed US ⏱️ 0.0 years remaining

Preparation of titanium polymers

Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-01-21
•
Granted: 1955-12-20
•
Expires: 1973-01-21
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Abstract

No abstract record available.

Inventors

  • 👤 Boyd Thomas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 18:33
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/003

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 197 words
A PROCESS FOR PREPARING A POLYMERIC TITANATE BY REACTING WATER WITH A MONOMERIC TITANATE HAVING THE GENERAL FORMULA TICLN(OR)4-N WHEREIN N IS AN INTEGER OF 1-2 INCLUSIVE AND WHEREIN R IS AN ORGANIC RADICAL TAKEN FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, ALKENYL, AND ARALKENYL RADICALS WHICH COMPRISES PREPARING A SOLUTION OF SAID MONOMER IN AT LEAST 3 MOLS OF AN ANHYDROUS ORGANIC SOLVENT PER MOL OF MOMOMER, SEPARATELY PREPARING A MIXTURE OF WATER WITH AN ORGANIC SOLVENT MISCIBLE WITH AT LEAST 5% BY WEIGHT OF WATER AND MISCIBLE WITH SAID FIRST-NAMED SOLVENT, SAID MIXTURE CONTAINING NOT MORE THAN ABOUT 5% BY WEIGHT OF WATER, AND SLOWLY ADDING SAID MIXTURE TO SAID SOLUTION WITH VIGOROUS AGITATION IN THE PRESENCE OF AT LEAST 1 MOL PER MOL OF COMBINED CHLORINE IN THE MONOMER OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF ANHYDROUS AMMONIA AND ANHYDROUS PRIMARY AND SECONDARY AMINES SOLUBLE IN SAID FIRST-NAMED SOLVENT, FROM 0.5-1.5 MOLS OF WATER PER MOL OF MONOMER BEING ADDED TO SAID MONOMER SOLUTION, SAID MONOMER AND SAID WATER BEING DILUTED IN THEIR SAID RESPECTIVE SOLVENTS TO AN EXTENT SUFFICIENT TO SUBSTANTIALLY PRECLUDE THE EVOLUTION OF TITANIUM DIOXIDE DURING SAID ADDITION.
Claim 2
Dependent Claim 197 words
A PROCESS FOR PREPARING A POLYMERIC TITANATE BY REACTING WATER WITH A MONOMERIC TITANATE HAVING THE GENERAL FORMULA TICLN(OR)4-N WHEREIN N IS AN INTEGER OF 1-2 INCLUSIVE AND WHEREIN R IS AN ORGANIC RADICAL TAKEN FROM THE GROUP CONSISTING OF ALKYL, ARYL, ARALKYL, ALKENYL, AND ARALKENYL RADICALS WHICH COMPRISES PREPARING A SOLUTION OF SAID MONOMER IN AT LEAST 3 MOLS OF AN ANHYDROUS ORGANIC SOLVENT PER MOL OF MOMOMER, SEPARATELY PREPARING A MIXTURE OF WATER WITH AN ORGANIC SOLVENT MISCIBLE WITH AT LEAST 5% BY WEIGHT OF WATER AND MISCIBLE WITH SAID FIRST-NAMED SOLVENT, SAID MIXTURE CONTAINING NOT MORE THAN ABOUT 5% BY WEIGHT OF WATER, AND SLOWLY ADDING SAID MIXTURE TO SAID SOLUTION WITH VIGOROUS AGITATION IN THE PRESENCE OF AT LEAST 1 MOL PER MOL OF COMBINED CHLORINE IN THE MONOMER OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF ANHYDROUS AMMONIA AND ANHYDROUS PRIMARY AND SECONDARY AMINES SOLUBLE IN SAID FIRST-NAMED SOLVENT, FROM 0.5-1.5 MOLS OF WATER PER MOL OF MONOMER BEING ADDED TO SAID MONOMER SOLUTION, SAID MONOMER AND SAID WATER BEING DILUTED IN THEIR SAID RESPECTIVE SOLVENTS TO AN EXTENT SUFFICIENT TO SUBSTANTIALLY PRECLUDE THE EVOLUTION OF TITANIUM DIOXIDE DURING SAID ADDITION.

References Cited (Backward Citations)

US2547944A Cited
US2566363A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1958-12-19 1959-06-20 1959-12-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-12-19 1963-06-20 1963-12-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-12-19 1967-06-20 1967-12-20 $7700.00 Window Closed / Lapsed

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