US2961423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crossed-linked styrene-allyl alcohol copolymers as binders for fibrous fillers and structural units manufactured therefrom
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-04-03
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Granted: 1960-11-22
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Expires: 1978-04-03
Abstract
No abstract record available.
Inventors
- 👤 Earl C Chapin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; C; C08; C08F; C08F257/00; C08F257/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A FLUID THEREMOSETTING RESINOUS BINDER COMPOSITION FOR INERT FIBROUS FILLERS COMPRISING (1) FROM 20 TO 60 PARTS BY WEIGHT OF A COPOLYMER OF A FIRST COMPONENT SELECTED FORM THE GROUP CONSISTING OF STYRENE, ALPHAMETHYSTYRENE, AND THE MONO- AND DI-RING-SUBSTITUTED METHYL- AND CHLORO-DERICATIVES THEREOF AND A SECOND COMPONENT SELECTED FORM THE GROUP CONSISTING OF ALLYL AND METHALLYL ALCOHOLS, SAID COPOLYMERS CONTAINING FROM 2 TO 10% HYDROXYL GROUPS BY WEIGHT, (2) FROM 80 TO 40 PARTS BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF STRYENE AND THE MONO- AND DI-RING-SUBSTITUTED METHYL- AND CHLORO-DERIVATIVES THEREOF AND (3) FROM 0.05 TO 3.0 EQUIVALENTS OF AN ALPHA,BETA-ETHYLENICALLY UNSATURATED CARBOXYLIC MONOMER PER EQUIVALENT OF HYDROXYL GROUPS IN SAID COPOLYMER, SAID ALPHA,BETAETHYLENICALLY UNSATURATED CARBOXYLIC MONOMER BEING SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, ALPHA,BETA-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS CONTAINING FROM 4 TO 8 CARBON ATOMS AND THE ANHYDRIDES AND MIXED ANHYDRIDES THEREOF.
Claim 2
Dependent Claim
150 words
A FLUID THEREMOSETTING RESINOUS BINDER COMPOSITION FOR INERT FIBROUS FILLERS COMPRISING (1) FROM 20 TO 60 PARTS BY WEIGHT OF A COPOLYMER OF A FIRST COMPONENT SELECTED FORM THE GROUP CONSISTING OF STYRENE, ALPHAMETHYSTYRENE, AND THE MONO- AND DI-RING-SUBSTITUTED METHYL- AND CHLORO-DERICATIVES THEREOF AND A SECOND COMPONENT SELECTED FORM THE GROUP CONSISTING OF ALLYL AND METHALLYL ALCOHOLS, SAID COPOLYMERS CONTAINING FROM 2 TO 10% HYDROXYL GROUPS BY WEIGHT, (2) FROM 80 TO 40 PARTS BY WEIGHT OF A MONOMER SELECTED FROM THE GROUP CONSISTING OF STRYENE AND THE MONO- AND DI-RING-SUBSTITUTED METHYL- AND CHLORO-DERIVATIVES THEREOF AND (3) FROM 0.05 TO 3.0 EQUIVALENTS OF AN ALPHA,BETA-ETHYLENICALLY UNSATURATED CARBOXYLIC MONOMER PER EQUIVALENT OF HYDROXYL GROUPS IN SAID COPOLYMER, SAID ALPHA,BETAETHYLENICALLY UNSATURATED CARBOXYLIC MONOMER BEING SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID, METHACRYLIC ACID, ALPHA,BETA-ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS CONTAINING FROM 4 TO 8 CARBON ATOMS AND THE ANHYDRIDES AND MIXED ANHYDRIDES THEREOF.
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) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |