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US3849359A Expired / Lapsed US ⏱️ 0.0 years remaining

Agents for the manufacture of organopolysiloxane coatings which repel adhesive substances

Assignee: Wacker Chemie AG
•
Filing: 1972-04-17
•
Granted: 1974-11-19
•
Expires: 1992-04-17
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Abstract

Abstract 1. A COATING COMPOSITION HAVING SUBSTANTIALLY NONADHERENT PROPERITIES WHICH COMPRISES (1) A DIORGANOPOLYSILOXANE HAVING SI-BONDED HYDROXYL GROUPS IN THE TERMINNAL UNITS, (2) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN ORGANOPOLYSILOXANE FREE OF AMINO GROUPS AND HAVING SI-BONDED HYDROGEN, (3) FROM 1 TO 20 PERCENT BY WEIGHT PERCENT ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF A TIN COMPOUND, (4) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN AMINOSUBSTITUTED SILICON COPOLYMER HAVING UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) AND AMINOORGANSILOXANE UNITS OF THE FORMULA (R''-)2-N-R-SI(-R")N(-O-Y)P-O((3-N-P)/2) IN WHICH THE COPOLYMER CONTAINS UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) IN AN AMOUNT AT LEAST EQUAL TO BUT NO MORE THAN 18 TIMES THE WEIGHT OF THE AMINOORGANOSILOXANE UNITS, R IS A DIVALENT HYDROCARBON RADICAL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL AND AMINOALKYL RADICALS, R" IS A MONOVALENT HYDROCARBON RADICAL, Y IS AN ALKYL RADICAL HAVING FROM 1 TO 5 CARBON ATOMS, N AND P EACH HAVE A VALUE OF 0 TO 2 AND THE SUM OF N+P IS LESS THAN 3, WHEREIN M AND X EACH HAVE A VALUE FROM 0 TO 3 WITH THE AVERAGE VALUE OF M BEING 0.9 TO 2.5, AND FROM 200 TO 5000 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORAGANOPOLYSILOXANE (1) OF AN INERT ORGANIC SOLVENT SUBSTANTIALLY FREE OF WATER.

Inventors

  • 👤 S Nitzsche
  • 👤 H Marwitz
  • 👤 F Hockemeyer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:15
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/22; C08G77/26; C08G77/42; C08G77/44; C08G77/70; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 234 words
A COATING COMPOSITION HAVING SUBSTANTIALLY NONADHERENT PROPERITIES WHICH COMPRISES (1) A DIORGANOPOLYSILOXANE HAVING SI-BONDED HYDROXYL GROUPS IN THE TERMINNAL UNITS, (2) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN ORGANOPOLYSILOXANE FREE OF AMINO GROUPS AND HAVING SI-BONDED HYDROGEN, (3) FROM 1 TO 20 PERCENT BY WEIGHT PERCENT ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF A TIN COMPOUND, (4) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN AMINOSUBSTITUTED SILICON COPOLYMER HAVING UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) AND AMINOORGANSILOXANE UNITS OF THE FORMULA (R''-)2-N-R-SI(-R")N(-O-Y)P-O((3-N-P)/2) IN WHICH THE COPOLYMER CONTAINS UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) IN AN AMOUNT AT LEAST EQUAL TO BUT NO MORE THAN 18 TIMES THE WEIGHT OF THE AMINOORGANOSILOXANE UNITS, R IS A DIVALENT HYDROCARBON RADICAL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL AND AMINOALKYL RADICALS, R" IS A MONOVALENT HYDROCARBON RADICAL, Y IS AN ALKYL RADICAL HAVING FROM 1 TO 5 CARBON ATOMS, N AND P EACH HAVE A VALUE OF 0 TO 2 AND THE SUM OF N+P IS LESS THAN 3, WHEREIN M AND X EACH HAVE A VALUE FROM 0 TO 3 WITH THE AVERAGE VALUE OF M BEING 0.9 TO 2.5, AND FROM 200 TO 5000 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORAGANOPOLYSILOXANE (1) OF AN INERT ORGANIC SOLVENT SUBSTANTIALLY FREE OF WATER.
Claim 2
Dependent Claim 234 words
A COATING COMPOSITION HAVING SUBSTANTIALLY NONADHERENT PROPERITIES WHICH COMPRISES (1) A DIORGANOPOLYSILOXANE HAVING SI-BONDED HYDROXYL GROUPS IN THE TERMINNAL UNITS, (2) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN ORGANOPOLYSILOXANE FREE OF AMINO GROUPS AND HAVING SI-BONDED HYDROGEN, (3) FROM 1 TO 20 PERCENT BY WEIGHT PERCENT ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF A TIN COMPOUND, (4) FROM 1 TO 20 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORGANOPOLYSILOXANE (1) OF AN AMINOSUBSTITUTED SILICON COPOLYMER HAVING UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) AND AMINOORGANSILOXANE UNITS OF THE FORMULA (R''-)2-N-R-SI(-R")N(-O-Y)P-O((3-N-P)/2) IN WHICH THE COPOLYMER CONTAINS UNITS OF THE FORMULA (CH3-)M(H-)X-SI-O((4-M-X)/2) IN AN AMOUNT AT LEAST EQUAL TO BUT NO MORE THAN 18 TIMES THE WEIGHT OF THE AMINOORGANOSILOXANE UNITS, R IS A DIVALENT HYDROCARBON RADICAL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL AND AMINOALKYL RADICALS, R" IS A MONOVALENT HYDROCARBON RADICAL, Y IS AN ALKYL RADICAL HAVING FROM 1 TO 5 CARBON ATOMS, N AND P EACH HAVE A VALUE OF 0 TO 2 AND THE SUM OF N+P IS LESS THAN 3, WHEREIN M AND X EACH HAVE A VALUE FROM 0 TO 3 WITH THE AVERAGE VALUE OF M BEING 0.9 TO 2.5, AND FROM 200 TO 5000 PERCENT BY WEIGHT BASED ON THE WEIGHT OF THE DIORAGANOPOLYSILOXANE (1) OF AN INERT ORGANIC SOLVENT SUBSTANTIALLY FREE OF WATER.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-18 1978-05-20 1978-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-18 1982-05-20 1982-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-18 1986-05-20 1986-11-19 $7700.00 Window Closed / Lapsed

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