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US3291772A Expired / Lapsed US ⏱️ 0.0 years remaining

Silylaminesiloxanes and polyfunction- al acids for encapsulating composi- tions

Assignee: —
•
Filing: —
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Granted: 1966-12-13
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Expires: 1983-12-13
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Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:14
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 227 words
A FLUID COMPOSITION COMPRISING (A) 100 PARTS OF A SILICON-NITROGEN POLYMER HAVING A VISCOSITY OF FROM 102 TO 109 CENTIPOISES AT 25*C., AND FROM 0.001 TO 2 MOLES OF A UNIT SELECTED FROM THE CLASS CONSISTING OF (R''2N) R2SIO05, (R''2N)R2SI(NR'')0.5 AND R3SINR'' CHEMICALLY COMBINED WITH FROM 98 TO 99.999 MOLES OF UNITS SELECTED FROM THE CLASS CONSISTING OF R2SIO, RSIO1.5, SIO2, AND MIXTURES THEREOF TO PROVIDE FOR A RATIO OF FROM 1.5 TO 2.04 OF THE SUM OF THE R AND R''2N RADICALS PER SILICON ATOM OF SAID SILICON-NITROGEN POLYMER, AND (B) FROM 0.5 TO 10 PARTS OF A POLYFUNCTIONAL COMPOUND SELECTED FROM THE CLASS CONSISTING OF BORON-OXIDE, A BORON-OXYGEN ACID, AN ESTER OF A BORON-OXYGEN ACID, A PHOSPHOROUS-CONTAINING ACID, SULFURIC ACID AND FERRIC CHLORIDE, WHERE THE FREE VALENCE OF THE SILICON ATOMS OF SAID SILICON-POLYMER, OTHER THAN THOSE CONNECTED TO OXYGNE TO FORM SILOXANE LINKAGES AND NITROGEN TO FORM TERMINAL UNITS SELECTED FROM THE CLASS CONSISTING OF SILAZY, SILYLAMINESILOXY, AND SILYAMINESILAZY, ARE JOINED TO R RADICALS, AND WHERE THE FREE VALENCES OF THE NITROGEN ATOMS OF SAID SILICON-NITROGEN POLYMER, OTHER THAN THOSE CONNECTED TO SILICON ATOMS, ARE JOINED TO R'' RADICALS WHERE R IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, AND HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND R'' IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND MONOVALENT HYDROCARBON RADICALS.
Claim 2
Dependent Claim 227 words
A FLUID COMPOSITION COMPRISING (A) 100 PARTS OF A SILICON-NITROGEN POLYMER HAVING A VISCOSITY OF FROM 102 TO 109 CENTIPOISES AT 25*C., AND FROM 0.001 TO 2 MOLES OF A UNIT SELECTED FROM THE CLASS CONSISTING OF (R''2N) R2SIO05, (R''2N)R2SI(NR'')0.5 AND R3SINR'' CHEMICALLY COMBINED WITH FROM 98 TO 99.999 MOLES OF UNITS SELECTED FROM THE CLASS CONSISTING OF R2SIO, RSIO1.5, SIO2, AND MIXTURES THEREOF TO PROVIDE FOR A RATIO OF FROM 1.5 TO 2.04 OF THE SUM OF THE R AND R''2N RADICALS PER SILICON ATOM OF SAID SILICON-NITROGEN POLYMER, AND (B) FROM 0.5 TO 10 PARTS OF A POLYFUNCTIONAL COMPOUND SELECTED FROM THE CLASS CONSISTING OF BORON-OXIDE, A BORON-OXYGEN ACID, AN ESTER OF A BORON-OXYGEN ACID, A PHOSPHOROUS-CONTAINING ACID, SULFURIC ACID AND FERRIC CHLORIDE, WHERE THE FREE VALENCE OF THE SILICON ATOMS OF SAID SILICON-POLYMER, OTHER THAN THOSE CONNECTED TO OXYGNE TO FORM SILOXANE LINKAGES AND NITROGEN TO FORM TERMINAL UNITS SELECTED FROM THE CLASS CONSISTING OF SILAZY, SILYLAMINESILOXY, AND SILYAMINESILAZY, ARE JOINED TO R RADICALS, AND WHERE THE FREE VALENCES OF THE NITROGEN ATOMS OF SAID SILICON-NITROGEN POLYMER, OTHER THAN THOSE CONNECTED TO SILICON ATOMS, ARE JOINED TO R'' RADICALS WHERE R IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, AND HALOGENATED MONOVALENT HYDROCARBON RADICALS, AND R'' IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND MONOVALENT HYDROCARBON RADICALS.

References Cited (Backward Citations)

US2676163A Cited
US2857356A Cited
US2865918A Cited
US2876209A Cited
US3047535A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-12-12 1970-06-13 1970-12-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-12-12 1974-06-13 1974-12-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-12-12 1978-06-13 1978-12-13 $7700.00 Window Closed / Lapsed

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