US3297623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft of polydiene with acrylate and methylol acrylamide
Assignee: Bayer AG
•
Filing: 1963-02-12
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Granted: 1967-01-10
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Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Knapp Karl-Heinrich
- 👤 Sinn Gustav
- 👤 Dinges Karl
- 👤 Ott Karl-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:26
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; C; C08; C08F; C08F279/00; C08F279/02; D04H1/64; D04H1/645; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29; D06M15/693
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A COAGULATION-STABLE AQUEOUS COPOLYMER DISPERSION COMPRISING WATER AND 10-60% OF A DISPERSED GRAFT COPOLYMER OF (A) 1-50% OF A POLYMER OF ALIPHATIC CONJUGATED DIOLEFINE HAVING 4-6 CARBON ATOMS, (B) 98.8-30% OF ACRYLIC ACID ESTER WITH 1-8 CARBON ATOMS IN THE ALKYL GROUP AND (C) .2-20% OF ACRYL AMIDE METHYLOL DERIVATIVE OF THE FORMULA
Claim 2
Dependent Claim
53 words
A COAGULATION-STABLE AQUEOUS COPOLYMER DISPERSION COMPRISING WATER AND 10-60% OF A DISPERSED GRAFT COPOLYMER OF (A) 1-50% OF A POLYMER OF ALIPHATIC CONJUGATED DIOLEFINE HAVING 4-6 CARBON ATOMS, (B) 98.8-30% OF ACRYLIC ACID ESTER WITH 1-8 CARBON ATOMS IN THE ALKYL GROUP AND (C) .2-20% OF ACRYL AMIDE METHYLOL DERIVATIVE OF THE FORMULA
References Cited (Backward Citations)
CA644005A
Cited
US2595907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |