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US2885384A Expired / Lapsed US ⏱️ 0.0 years remaining

Bis(hydroxyphenyl)alkane reacted with polyorgano-siloxane resins

Assignee: Union Carbide Corp
•
Filing: 1954-05-25
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Granted: 1959-05-05
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Expires: 1974-05-25
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Abstract

No abstract record available.

Inventors

  • 👤 Sterman Samuel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 07:50
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/50; C08G77/52; C08L; C08L83/00; C08L83/14

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 182 words
A COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF ONE EQUAVALENT WEIGHT OF AN ORGANOPOLYSILOXANE AND FROM 0.8 TO 2.0 EQUAVALENT WEIGHTS OF BIS (HYDROXYPHENY) SUBSTITUTED ALKANE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKANE GROUP THEREOF, SAID ORGANOPOLYSILOXANE HAVING (A) FROM 1.0 TO 1.6 MONOVALENT SILICONBONDED HYDROCARBYL GROUPS PER SILICON ATOM, SAID HYDROCARBYL GROUPS BEING TAKEN FROM GROUPS CONSISTING OF PHENYL AND METHYL GROUPS, THE AMOUNT OF SAID SILICON-BONDED METHYL GROUPS PRESENT VARYING FROM 0 PERCENT TO ABOUT 60 PERCENT OF THE AMOUNT OF THE TOTAL SILICON-BONDED HYDROCARBYL GROUPS PRESENT, AND (B) SILICON-BONDED HYDROCARBYLOXY GROUPS, SAID HYDROCARBYLOXY GROUPS BEING TAKEN FROM THE CLASS CONSISTING OF ALKOXY AND ARYLOXY GROUPS AND BEING PRESENT IN AN AMOUNT BY WEIGHT OF FROM ABOUT 5 PERCENT TO ABOUT 40 PERCENT OF THE TOTAL WEIGHT OF SAID ORGANO POLYSILOXANE, SAID REACTION PRODUCT INCLUDING A PLURALITY OF RECURRING POLYSILOXANE PORTIONS CONNECTED BY DIVALENT BIS (OXYPHEYL) SUBSTITUTED ALKANE RADICALS THROUGH SILICON-OXYGEN-CARBON LINKAGES, THE 2 OXYPHENYL GROUPS OF EACH OF SAID BIS (OXYPHENYL) SUBSTITUTED ALKANE RADICALS BEING ATTACHED TO THE SAME CARBON ATOMS OF THE ALKANE GROUP.
Claim 2
Dependent Claim 182 words
A COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF ONE EQUAVALENT WEIGHT OF AN ORGANOPOLYSILOXANE AND FROM 0.8 TO 2.0 EQUAVALENT WEIGHTS OF BIS (HYDROXYPHENY) SUBSTITUTED ALKANE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKANE GROUP THEREOF, SAID ORGANOPOLYSILOXANE HAVING (A) FROM 1.0 TO 1.6 MONOVALENT SILICONBONDED HYDROCARBYL GROUPS PER SILICON ATOM, SAID HYDROCARBYL GROUPS BEING TAKEN FROM GROUPS CONSISTING OF PHENYL AND METHYL GROUPS, THE AMOUNT OF SAID SILICON-BONDED METHYL GROUPS PRESENT VARYING FROM 0 PERCENT TO ABOUT 60 PERCENT OF THE AMOUNT OF THE TOTAL SILICON-BONDED HYDROCARBYL GROUPS PRESENT, AND (B) SILICON-BONDED HYDROCARBYLOXY GROUPS, SAID HYDROCARBYLOXY GROUPS BEING TAKEN FROM THE CLASS CONSISTING OF ALKOXY AND ARYLOXY GROUPS AND BEING PRESENT IN AN AMOUNT BY WEIGHT OF FROM ABOUT 5 PERCENT TO ABOUT 40 PERCENT OF THE TOTAL WEIGHT OF SAID ORGANO POLYSILOXANE, SAID REACTION PRODUCT INCLUDING A PLURALITY OF RECURRING POLYSILOXANE PORTIONS CONNECTED BY DIVALENT BIS (OXYPHEYL) SUBSTITUTED ALKANE RADICALS THROUGH SILICON-OXYGEN-CARBON LINKAGES, THE 2 OXYPHENYL GROUPS OF EACH OF SAID BIS (OXYPHENYL) SUBSTITUTED ALKANE RADICALS BEING ATTACHED TO THE SAME CARBON ATOMS OF THE ALKANE GROUP.

References Cited (Backward Citations)

US2058394A Cited
US2529956A Cited
US2438055A Cited
US2695276A Cited
US2755269A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-05-04 1962-11-03 1963-05-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-05-04 1966-11-03 1967-05-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-05-04 1970-11-03 1971-05-05 $7700.00 Window Closed / Lapsed

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