Patent US3220968A successfully refreshed from Google Patents.
US3220968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storable polychloroprene polymer solution
Assignee: Bayer AG
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Filing: 1961-03-21
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Granted: 1965-11-30
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Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Dollhausen Manfred
- 👤 Bock Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:06
CPC Classifications
C; C09; C09J; C09J111/00; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08K5/13; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A STORABLE SOLUTION OF RUBBERY CHLOROPRENE POLYMER IN AN ORGANIC SOLVENT, WHICH SOLUTION IS SUITABLE FOR THE PRODUCTION OF ADHESIVE CONNECTIONS AND COATINGS WHICH CONSIST ESSENTIALLY OF A RUBBERY CHLOROPRENE POLYMER AND (1) 0.1-20% BY WEIGHT OF AN AROMATIC HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) A MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOL CONTAINING A MAXIMUM OF THREE HYDROXY GROUPS, TWO OF WHICH ARE IN ORTHO POSTION ONE TO THE OTHER, (B) ONE OF SAID MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOLS WHICH IS SUBSTITUTED WITH AN ALIPHATIC RADICAL CONTAINING UP TO 4 CARBON ATOMS, AND (C) AN ALKYLPHENOL-FORMALDEHYDE RESIN MODIFIED WITH SAID MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOL, (2) 0.5-20% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC CARBOXYLIC ACID CONTAINING A MAXIMUM OF THREE CARBOXYL GROUPS AND FROM 3 TO 10 CARBON ATOMS, AND AN ANHYDRIDE OF SAID CARBOXYLIC ACID, AND (3) 0.-525% BY WEIGHT OF A ZINC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A ZINO SALT AND ZINC OXIDE, SAID PERCENTAGES BEING BASED ON THE CHLOROPRENE POLYMER CONTENT OF SAID SOLUTION.
Claim 2
Dependent Claim
175 words
A STORABLE SOLUTION OF RUBBERY CHLOROPRENE POLYMER IN AN ORGANIC SOLVENT, WHICH SOLUTION IS SUITABLE FOR THE PRODUCTION OF ADHESIVE CONNECTIONS AND COATINGS WHICH CONSIST ESSENTIALLY OF A RUBBERY CHLOROPRENE POLYMER AND (1) 0.1-20% BY WEIGHT OF AN AROMATIC HYDROXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) A MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOL CONTAINING A MAXIMUM OF THREE HYDROXY GROUPS, TWO OF WHICH ARE IN ORTHO POSTION ONE TO THE OTHER, (B) ONE OF SAID MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOLS WHICH IS SUBSTITUTED WITH AN ALIPHATIC RADICAL CONTAINING UP TO 4 CARBON ATOMS, AND (C) AN ALKYLPHENOL-FORMALDEHYDE RESIN MODIFIED WITH SAID MONONUCLEAR AROMATIC POLYHYDROXY ALCOHOL, (2) 0.5-20% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC CARBOXYLIC ACID CONTAINING A MAXIMUM OF THREE CARBOXYL GROUPS AND FROM 3 TO 10 CARBON ATOMS, AND AN ANHYDRIDE OF SAID CARBOXYLIC ACID, AND (3) 0.-525% BY WEIGHT OF A ZINC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A ZINO SALT AND ZINC OXIDE, SAID PERCENTAGES BEING BASED ON THE CHLOROPRENE POLYMER CONTENT OF SAID SOLUTION.
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |