US3050418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for imparting wettability to shaped hydrophobic polymeric material
Assignee: Yardney International Corp
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Filing: 1959-11-09
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Granted: 1962-08-21
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Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Mendelsohn Meyer
- 👤 Horowitz Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:51
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/655; D06P1/66; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8135; A61Q; A61Q5/00; A61Q5/06; A61Q5/065; C; C08; C08F; C08F8/00; C08F8/14; C08J; C08J7/00; C08J7/04; C08J7/0427; C08L; C08L29/00; C08L29/02; C08L29/04; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/463; D06M15/00; D06M15/19; D06M15/21; D06M15/327; D06M15/333; D06M15/37; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5228; C08F2810/00; C08F2810/30; C08J2429/00; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2101/08; D06M2101/10; D06M2101/12; D06M2101/16; D06M2101/30; D06M2101/34; D06M2200/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A PROCESS FOR PREPARING A NOVEL, READILY WETTABLE COMPOSITION OF MATTER WHICH COMPRISES HEATING POLYVINYL ALCOHOLS AND A POLYCARBOXYLIC ACID UNDER ESTERIFYING CONDITIONS FOR A SUFFICIENT TIME TO EFFECT A PARTIAL ESTERIFICATION SO AS TO PRODUCE AN ESTER HAVING UNREACTED GROUPS SELECTED FROM A CLASS CONSISTING OF HYDROXY AND CARBOXY GROUPS AND REACTING SAID ESTER OF ELEVATED TEMPERTURES WITH A HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL HAVING FUNCTIONAL GROUPS CAPABLE OF REACTING WITH SAID UNREACTED GROUPS OF SAID ESTER WHEREBY CHEMICAL BONDS ARE FOMRED BETWEEN SAID HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL AND SAID ESTER.
Claim 2
Dependent Claim
91 words
A PROCESS FOR PREPARING A NOVEL, READILY WETTABLE COMPOSITION OF MATTER WHICH COMPRISES HEATING POLYVINYL ALCOHOLS AND A POLYCARBOXYLIC ACID UNDER ESTERIFYING CONDITIONS FOR A SUFFICIENT TIME TO EFFECT A PARTIAL ESTERIFICATION SO AS TO PRODUCE AN ESTER HAVING UNREACTED GROUPS SELECTED FROM A CLASS CONSISTING OF HYDROXY AND CARBOXY GROUPS AND REACTING SAID ESTER OF ELEVATED TEMPERTURES WITH A HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL HAVING FUNCTIONAL GROUPS CAPABLE OF REACTING WITH SAID UNREACTED GROUPS OF SAID ESTER WHEREBY CHEMICAL BONDS ARE FOMRED BETWEEN SAID HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL AND SAID ESTER.
Claim 3
Dependent Claim
60 words
A READILY WETTABLE COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCTS OF A PARTIAL ESTER OF POLYVINYL ALCOHOL AND A POLYCARBOXYLIC ACID HAVING UNREACTED GROUPS SELECTED FROM THE CLASS CONSISTING OF CARBOXY AND HYDROXY GROUPS AND A HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL HAVING FUNCTIONAL GROUPS CAPABLE OF REACTING WITH SAID UNREACTED GROUPS, SAID POLYMERIC MATERIAL HAVING BEING CHEMICALLY BONDED TO SAID ESTER.
Claim 4
Dependent Claim
60 words
A READILY WETTABLE COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCTS OF A PARTIAL ESTER OF POLYVINYL ALCOHOL AND A POLYCARBOXYLIC ACID HAVING UNREACTED GROUPS SELECTED FROM THE CLASS CONSISTING OF CARBOXY AND HYDROXY GROUPS AND A HYDROPHOBIC THERMOPLASTIC POLYMERIC MATERIAL HAVING FUNCTIONAL GROUPS CAPABLE OF REACTING WITH SAID UNREACTED GROUPS, SAID POLYMERIC MATERIAL HAVING BEING CHEMICALLY BONDED TO SAID ESTER.
References Cited (Backward Citations)
US2145345A
Cited
US2565962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |