US2687388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenyl methyl siloxane solution containing a zirconium salt
Assignee: Millennium Petrochemicals Inc
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Filing: 1950-11-13
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Granted: 1954-08-24
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Expires: 1970-11-13
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Mcnulty
- 👤 Dennis J Killian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A LIQUID SOLUTION STABLE AT NORMAL TEMPERATURES CONSISTING ESSENTIALLY OF A HEAT-HARDENABLE, AROMATIC-HYDROCARBON SOLVENT-SOLUBLE, PHENYL-L METHYL SILOXANE RESIN COMPRISING COPOLYMERIZED MONOPHENYL SILOXANE UNITS, DIMETHYL SILOXANE UNITS AND MONOMETHYL SILOXANE UNITS DISSOLVED IN A VOLATILE SOLVENT AND CONTAINING AS A HARDENING AGENT A ZIRCONIUM SALT FROM THE CLASS CONSISTING OF ZIRCONIUM NAPHTHENATE AND ZIRCONYL STEARATE IN A PROPORTION WITHIN THE RANGE EQUIVALENT TO 0.005% TO 0.5% OF ZIRCONIUM BY WEIGHT.
Claim 2
Dependent Claim
69 words
A LIQUID SOLUTION STABLE AT NORMAL TEMPERATURES CONSISTING ESSENTIALLY OF A HEAT-HARDENABLE, AROMATIC-HYDROCARBON SOLVENT-SOLUBLE, PHENYL-L METHYL SILOXANE RESIN COMPRISING COPOLYMERIZED MONOPHENYL SILOXANE UNITS, DIMETHYL SILOXANE UNITS AND MONOMETHYL SILOXANE UNITS DISSOLVED IN A VOLATILE SOLVENT AND CONTAINING AS A HARDENING AGENT A ZIRCONIUM SALT FROM THE CLASS CONSISTING OF ZIRCONIUM NAPHTHENATE AND ZIRCONYL STEARATE IN A PROPORTION WITHIN THE RANGE EQUIVALENT TO 0.005% TO 0.5% OF ZIRCONIUM BY WEIGHT.
References Cited (Backward Citations)
US2453562A
Cited
US2449572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |