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US3684784A Expired / Lapsed US ⏱️ 0.0 years remaining

Quaternary nitrogen-containing random copolymers

Assignee: Rhone Poulenc SA
•
Filing: 1970-10-09
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Granted: 1972-08-15
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Expires: 1990-10-09
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Abstract

Abstract New compositions of matter which are nitrogen-containing random copolymers which comprise recurring units of formulas ALONE, OR IN COMBINATION WITH ONE OR MORE OF THE RECURRING UNITS OF FORMULAS: THE RELATIVE PROPORTIONS OF THE RECURRING UNITS IN THE COPOLYMERS BEING, RESPECTIVELY, N AND Q AND IF PRESENT, M, P AND R, SUCH THAT THE RATIO N:M+P+Q+R IS BETWEEN 1 AND 60, IN WHICH R represents hydrogen or aliphatic, alicyclic, aromatic or araliphatic radical; A and B are different, one representing a hydrogen atom and the other a radical of the formula: WHEREIN Y - is an anion, and each R'', which may be the same or different, represents a hydrocarbon radical, which may be substituted; A''and B'' are different, one representing a hydrogen atom and the other a radical of the formula -CH2X, wherein X represents a halogen atom, are described for use in ion-exchange membranes and also for improving the anti-static and dyeability properties of synthetic polymers.

Inventors

  • 👤 Xavier Marze

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:34
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/327; D06M15/333; C; C08; C08F; C08F8/00; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2287; C08J2335/00; C08J2335/02; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 7 words
Copolymers according to claim 1, in which
Claim 2
Dependent Claim 7 words
Copolymers according to claim 2 in which
Claim 3
Dependent Claim 7 words
Copolymers according to claim 1, in which
Claim 4
Dependent Claim 15 words
Copolymers according to claim 1, in which the ratio n:m+p+q+r is between 4.5 and 18.
Claim 5
Dependent Claim 7 words
Copolymers according to claim 1, in which
Claim 6
Dependent Claim 10 words
Copolymers according to claim 1, in which X represents chlorine.

References Cited (Backward Citations)

US2676166A Cited
US2829053A Cited
US2808349A Cited
US3170901A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-15 1976-02-14 1976-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-15 1980-02-14 1980-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-15 1984-02-14 1984-08-15 $7700.00 Window Closed / Lapsed

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