US2916471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of synthetic elastomers and resinous aldehyde-condensation products and vulcanized products thereof
Assignee: Bayer AG
•
Filing: 1954-10-20
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Granted: 1959-12-08
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Rosahl Dietrich
- 👤 Graulich Wilhelm
- 👤 Holzrichter Hermann
- 👤 Ecker Ruprecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:55
CPC Classifications
C; C08; C08L; C08L19/00; C08L19/006; C08L61/00; C08L61/04; C08L61/06; C08L61/20; C08L61/22; C08L61/24; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COMPOSITION OF MATTER COMPRISING (1) A RUBBERLIKE COPOLYMER OF (A) 30-85% OF A BUTADIENE, (B) 545% OF COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ACRYLIC NITRILES, ACRYLIC ACID ESTERS AND METHACRYLIC ACID ESTERS, AND (C) 0.5-20% OF AN ORGANIC COMPOUND CONTAINING BESIDES COPOLYMERIZABLE DOUBLE BONDS REACTIVE CARBOXYLIC ACID GROUPS, AND (2) A FUSIBLE, SOLUBLE RESINFORMING CONDENSATION PRODUCT OF FORMALDEHYDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOLS, AROMATIC HYDROCARBONS, ALKYLATED AROMATIC HYDROCARBONS, UREA, THIOUREA, MELAMINE AND AROMATIC SULFONAMIDES.
Claim 2
Dependent Claim
81 words
A COMPOSITION OF MATTER COMPRISING (1) A RUBBERLIKE COPOLYMER OF (A) 30-85% OF A BUTADIENE, (B) 545% OF COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ACRYLIC NITRILES, ACRYLIC ACID ESTERS AND METHACRYLIC ACID ESTERS, AND (C) 0.5-20% OF AN ORGANIC COMPOUND CONTAINING BESIDES COPOLYMERIZABLE DOUBLE BONDS REACTIVE CARBOXYLIC ACID GROUPS, AND (2) A FUSIBLE, SOLUBLE RESINFORMING CONDENSATION PRODUCT OF FORMALDEHYDE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOLS, AROMATIC HYDROCARBONS, ALKYLATED AROMATIC HYDROCARBONS, UREA, THIOUREA, MELAMINE AND AROMATIC SULFONAMIDES.
References Cited (Backward Citations)
US2669553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |