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US3873646A Expired / Lapsed US ⏱️ 0.0 years remaining

Dyeable polypropylene compositions containing polymers of N-aminoalkyl acrylamides

Assignee: Lubrizol Corp
•
Filing: 1972-09-27
•
Granted: 1975-03-25
•
Expires: 1992-09-27
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Abstract

Abstract N-3-Aminoalkyl propionamides with an ether substituent on the beta carbon atom are prepared by the reaction of analogous N-3oxohydrocarbon-substituted amides with an amine in the presence of a reducing agent, preferably hydrogen and a hydrogenation catalyst. The resulting compounds can be converted to acrylamides by pyrolysis in the presence of a strong base. The latter compounds may also be prepared by the reaction of a Beta , gamma -unsaturated amine with an acrylonitrile in the presence of sulfuric acid. They are useful for improving dyeability of fiberforming polymers and may be polymerized to form compositions which are useful in paper manufacture and (in their quaternized form) are excellent flocculants.

Inventors

  • 👤 Donald Irvin Hoke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 12:08
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/44; D21H17/45; D21H17/455; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C08K; C08K5/00; C08K5/16; C08K5/20

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 25 words
A COMPOSITION COMPRISING A MAJOR AMOUNT OF (A) POLYETHYLENE OR POLYPROPYLENE AND A MINOR AMOUNT OF (B) A POLYMER OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 25 words
A COMPOSITION COMPRISING A MAJOR AMOUNT OF (A) POLYETHYLENE OR POLYPROPYLENE AND A MINOR AMOUNT OF (B) A POLYMER OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim 9 words
A composition according to claim 1 wherein Y is
Claim 4
Dependent Claim 44 words
A composition according to claim 2 wherein each of R1, R2 and R3 is hydrogen or a lower alkyl radical, each of R4 and R5 is a lower alkyl radical, R7 is hydrogen, and each of Z1 and Z2 is a lower alkyl radical.
Claim 5
Dependent Claim 27 words
A composition according to claim 3 wherein R1 is hydrogen or methyl; R2, R3 and R7 are hydrogen; R4 and R5 are methyl; and Y is N(CH3)2.
Claim 6
Dependent Claim 11 words
A composition according to claim 4 wherein polymer A is polypropylene.
Claim 7
Dependent Claim 12 words
A composition according to claim 5 wherein polymer B is a homopolymer.
Claim 8
Dependent Claim 9 words
A composition according to claim 1 wherein Y is
Claim 9
Dependent Claim 44 words
A composition according to claim 7 wherein each of R1, R2 and R3 is hydrogen or a lower alkyl radical, each of R4 and R5 is a lower alkyl radical, R7 is hydrogen, and each of Z1 and Z2 is a lower alkyl radical.
Claim 10
Dependent Claim 28 words
A composition according to claim 8 wherein R1 is hydrogen or methyl; R2, R3 and R7 are hydrogen; R4 and R5 are methyl; and Y is N(CH3)3X .
Claim 11
Dependent Claim 11 words
A composition according to claim 9 wherein polymer A is polypropylene.
Claim 12
Dependent Claim 12 words
A composition according to claim 10 wherein polymer B is a homopolymer.

References Cited (Backward Citations)

US2980657A Cited
US3151928A Cited
US3666810A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-24 1978-09-23 1979-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-24 1982-09-23 1983-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-24 1986-09-23 1987-03-25 $7700.00 Window Closed / Lapsed

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