US2716656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo titanium-silicon copolymer preparation
Assignee: Monsanto Chemicals Ltd
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Filing: 1953-01-21
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Granted: 1955-08-30
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Expires: 1973-01-21
Abstract
No abstract record available.
Inventors
- 👤 Boyd Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PROCESS FOR COPOLYMERIZING MONOMERIC TETRAORGANO DERIVATIVE OF ORTHOTITANIC ACID WITH MONOMERIC ORGANO SILICON DERIVATIVES WHICH COMPRISES SLOWLY ADDING WITH AGITATION TO AN ANHYDROUS ORGANIC SOLVENT SOLUTION OF A MIXTURE OF SAID TITANIUM AND SILICON MONOMERS A MIXTURE OF WATER WITH AN EXCESS OF AN ORGANIC SOLVENT CAPABLE OF AT LEAST PARTIALLY DISSOLVING THE WATER, SAID WATERSOLVENT MIXTURE CONTAINING FROM 0.5 TO 1.5 MOLS OF WATER PER MOL OF SAID MONOMER MIXTURE, SAID SILICON MONOMER HAVING THE FORMULA SI(OR)NR(4-N) WHEREIN EACH R IS A MONOVALENT HYDROCARBON RADICAL AN N IS AN INTEGER OF 1 TO 4 INCLUSIVE, SAID TITANIUM MONOMER BEING TAKEN FROM THE GROUP CONSISTING OF TETRA-ESTERS, TETRA-ANYDRIDES AND TETRA-AMIDES OF ORTHOTITANIC ACID, SAID TETRAESTERS HAVING THE FORMULA TI(OR)4 WHEREIN R IS A MONOVALENT HYDROCARBON RADICAL, SAID TETRA-ANHYDRIDES HAVING THE FORMULA
Claim 2
Dependent Claim
132 words
A PROCESS FOR COPOLYMERIZING MONOMERIC TETRAORGANO DERIVATIVE OF ORTHOTITANIC ACID WITH MONOMERIC ORGANO SILICON DERIVATIVES WHICH COMPRISES SLOWLY ADDING WITH AGITATION TO AN ANHYDROUS ORGANIC SOLVENT SOLUTION OF A MIXTURE OF SAID TITANIUM AND SILICON MONOMERS A MIXTURE OF WATER WITH AN EXCESS OF AN ORGANIC SOLVENT CAPABLE OF AT LEAST PARTIALLY DISSOLVING THE WATER, SAID WATERSOLVENT MIXTURE CONTAINING FROM 0.5 TO 1.5 MOLS OF WATER PER MOL OF SAID MONOMER MIXTURE, SAID SILICON MONOMER HAVING THE FORMULA SI(OR)NR(4-N) WHEREIN EACH R IS A MONOVALENT HYDROCARBON RADICAL AN N IS AN INTEGER OF 1 TO 4 INCLUSIVE, SAID TITANIUM MONOMER BEING TAKEN FROM THE GROUP CONSISTING OF TETRA-ESTERS, TETRA-ANYDRIDES AND TETRA-AMIDES OF ORTHOTITANIC ACID, SAID TETRAESTERS HAVING THE FORMULA TI(OR)4 WHEREIN R IS A MONOVALENT HYDROCARBON RADICAL, SAID TETRA-ANHYDRIDES HAVING THE FORMULA
References Cited (Backward Citations)
US2512058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |