US3457326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of a polyester,diisocyanate,ethylenically unsaturated alcohol and a urea linkage former
Assignee: Uniroyal Inc
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Filing: 1965-04-22
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Granted: 1969-07-22
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Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Robert N Kienle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:24
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/65; C08G18/6505; C08G18/6523; C08G18/6529; C08G18/67; C08G18/671; C08G18/6715; C08G18/6745; C08G18/68; C08G18/70; C08G18/81; C08G18/8141; C08G18/815; C08G18/8158; C08G18/8191; C08G18/83; C08G18/86
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
338 words
A POLYMER HAVING THE FORMULA: T-(P)A-(D-U)B-(D-P)C-((D-U)F-(D-P)G)H-(D-U)D-(D-P)E-D(P)A-T WHEREIN A IS AN INTGER SELECTED FROM THE GROUP CONSISTING OF ZERO AND ONE; B,C,D AND E ARE INTEGERS INCLUDING ZERO; F, G AND H ARE INTEGERS GREATER THAN ZERO; WHERE A IS ZERO, P IS THE POLYMERIC RESIDUE REMAINING AFTER REMOVAL OF THE HYDROGEN ATOMS FROM THE TERMINAL GROUPS OF A SUBSTANTIALLY LINEAR, SUBSTANTIALLY SATURATED, SUBSTANTIALLY HYDROXY-TERMINATED MATERIAL SELECTED FORM THE GROUP CONSISTING OF POLYESTERS HAVING A MOLECULAR WEIGHT OF FROM 1000 TO 4000 AND HAVING AN ACID NUMBER OF LESS THAN 6 OBTAINED BY THE ESTERFICATION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF WITH A GLYCOL AND POLYETHERS HAVING A MOLECULAR WEIGHT OF FROM 500 TO 3000 AND HAVING THE ETHER LINKAGES THEREOF SEPARATED BY LINEAR ALKYL HYDROCARBON CHAINS OF FROM TWO TO FIVE CARBON ATOMS; WHERE A IS ONE, P IS THE POLYMERIC RESIDUE REMAINING AFTER REMOVAL OF THE HYDROGEN ATOMS FROM THE TERMINAL GROUPS OF A SUBSTANTIALLY LINEAR, SUBSTANTIALLY SATURATED, SUBSTANTIALLY HYDROXYTERMINATED POLYESTER HAVING A MOLECULAR WEIGHT OF FROM 1000 TO 4000 AND AN ACID NUMBER OF LESS THAN 6 OBTAINED BY THE ESTERIFICATION OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF DICARBOXYLIC ACIDS AND ANHYDRIDES THEREOF WITH A GLYCOL; D IS THE RADICAL REMAINING AFTER ADDITION OF HYDROGEN ATOMS TO THE ISOCYANTE GROUPS OF AN ORGANIC DIISOCYANATE FREE OF ISOCYANATE-REACTIVE GROUPS; T IS THE RADICAL REMAINING AFTER REMOVAL OF THE ACTIVE HYDROGEN ATOM FROM A SUBSTANCE WHEREIN THE NUMBER OF CARBON ATOMS DOES NOT EXCEED 20, SAID SUBSTANCE CONTAINING ONLY ONE GROUP REACTIVE WITH ISOCYANATE AND CONTAINING ETHYLENIC UNSATURATION, SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALXOHOLS, SECONDARY ALIPHATIC ALCOHOLS, AND SECONDARY ALIPHATIC-AROMATIC ALCOHOLS; U IS THE RADICAL REMAINING AFTER REMOVAL OF AT LEAST TWO ACTIVE HYDROGEN ATOMS FROM A UREA LINKAGE FORMER CONTAINING AT LEAST TWO ACTIVE HYDROGEN ATOMS SELECTED FROM THE GROUP CONSISTING OF DIAMINES, WATER, AMINO-ALCOHOLS AND AMINO-PHENOLS; THE PROPORTIONS BEING AS FOLLOWS: (P) 1.0 MOLE; (T) 0.06 TO 0.7 MOLE; (U) 0.05 TO 0.6 MOLE.
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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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |