Patent US2814834A successfully refreshed from Google Patents.
US2814834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making dipped goods
Assignee: Uniroyal Inc
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Filing: 1953-11-13
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Granted: 1957-12-03
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Newman W Hess
- 👤 William F Dacey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:40
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; A; A43; A43B; A43B13/00; A43B13/02; A43B13/04; B29C; B29C41/00; B29C41/02; B29C41/14; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; C08G18/4236; C08G18/4238; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF MAKING A DIPPED ARTICLE OF A POLYURETHANE ELASTOMER COMPRISING PROVIDING A SOLUTION IN AN INERT VOLATILE ORGANIC SOLVENT OF A NORMALLY TACKY LIQUID INTERMEDIATE REACTION PRODUCT OF (1) A POLYESTER HAVING A HYDROXYL NUMBER OF FROM 20 TO 120 AND ACID VALUE LESS THAN 2, WITH (2) A 20% TO A 250% MOLAR EXCESS OF A DIISOCYANATE, SAID INTERMEDIATE REACTION PRODUCT CONTAINING UNREACTED ISOCYANATE GROUPS, PROVIDING A SOLUTION OF A DIPRIMARY DIAMINE IN AN INERT VOLATILE ORGANIC SOLVENT, PROVIDING A FORM OF A DESIRED SHAPE HAVING A SURFACE THAT IS WETTABLE BY SAID SOLUTION OF SAID INTERMEDIATE REACTION PRODUCT AND TO WHICH THE POLYURETHANE ELASTOMER WILL NOT ADHERE, DIPPING THE SAID FORM ALTERNATELY IN SAID SOLUTIONS, WHEREBY THERE IS DEPOSITED ON THE FORM A FILM OF SAID IN TERMEDIATE REACTION PRODUCT THAT IS CONVERTED INTO A SOLID NON-TACKY CURED CONDITION ON THE FORM BY THE ACTION OF THE DIAMINE, AND THEREAFTER STRIPPING THE RESULTING POLYURETHANE ARTICLE FROM THE FORM.
Claim 2
Independent Claim
162 words
A METHOD OF MAKING A DIPPED ARTICLE OF A POLYURETHANE ELASTOMER COMPRISING PROVIDING A SOLUTION IN AN INERT VOLATILE ORGANIC SOLVENT OF A NORMALLY TACKY LIQUID INTERMEDIATE REACTION PRODUCT OF (1) A POLYESTER HAVING A HYDROXYL NUMBER OF FROM 20 TO 120 AND ACID VALUE LESS THAN 2, WITH (2) A 20% TO A 250% MOLAR EXCESS OF A DIISOCYANATE, SAID INTERMEDIATE REACTION PRODUCT CONTAINING UNREACTED ISOCYANATE GROUPS, PROVIDING A SOLUTION OF A DIPRIMARY DIAMINE IN AN INERT VOLATILE ORGANIC SOLVENT, PROVIDING A FORM OF A DESIRED SHAPE HAVING A SURFACE THAT IS WETTABLE BY SAID SOLUTION OF SAID INTERMEDIATE REACTION PRODUCT AND TO WHICH THE POLYURETHANE ELASTOMER WILL NOT ADHERE, DIPPING THE SAID FORM ALTERNATELY IN SAID SOLUTIONS, WHEREBY THERE IS DEPOSITED ON THE FORM A FILM OF SAID IN TERMEDIATE REACTION PRODUCT THAT IS CONVERTED INTO A SOLID NON-TACKY CURED CONDITION ON THE FORM BY THE ACTION OF THE DIAMINE, AND THEREAFTER STRIPPING THE RESULTING POLYURETHANE ARTICLE FROM THE FORM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |