US4439545A
Expired / Lapsed
US
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Acrylic copolymers of N-acryloylpolymethyleneimines or N-acryloyldialkylamides, N,N'-acryloyldiaminoalcanes and N-acryloylaminoacids (or esters) their preparation and use as cation exchangers
Assignee: D "EXPANSION SCIENTIFIQUE "EXPANSIA" Ste
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Filing: 1982-11-10
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Granted: 1984-03-27
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Expires: 2002-11-10
Abstract
Abstract The invention relates to new reticulated statistic acrylic copolymers that may be used in a very wide range of solvents (water, methylene chloride, chloroform, methanol, ethanol, dimethylformamide, pyridine,) stable between pH 1 and pH 14, to preparation process thereof and to their use in ion exchange chromatography.
Inventors
- 👤 Christian Aspisi
- 👤 Bernard Calas
- 👤 Jacques Daunis
- 👤 Michel Follet
- 👤 Robert Jacquier
- 👤 Joseph Parello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:34
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/52; C08F220/54; C08F220/56; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; B01J39/26; C07; C07K; C07K1/00; C07K1/04; C07K1/042; C08F8/00; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
New acrylic copolymers comprising: from 30% to 90%, by weight, of a monomer (matrix) corresponding to an N-acryloylpolymethylenimine of formula: ##STR12## with R 1 =H or --CH 3 ##STR13## with n 1 =4,5 or 6 or ##STR14## or a N-acryloyldialkylamide, of formula: ##STR15## with R 1 having the same meaning as above R 2 =--CH 3 or --C 2 H 5 from 2% to 50%, by weight, of a monomer (linker) corresponding to an N,N'-diacryloyldiaminoalcane of formula ##STR16## with n 2 =1 or 2 and from 2% to 65%, by weight, of a monomer (functionalization agent) corresponding to an acryloylaminoacid or ester, racemic of formula: ##STR17## with R 1 =H or --CH 3 R 3 =H or --CH 3 n 3 =1, 2, 3 or 5 or an asymetric N-acryloylaminoacide (or ester) (L series) of the formula: ##STR18## with R 1 =H or --CH 3 R 3 having the same meaning as above ##STR19## or the N-acryloyl (L) proline, or its methyl ester of the formula: ##STR20## with R 1 =H or --CH 3 R 3 having the same meaning as above.
Claim 2
Dependent Claim
182 words
New acrylic copolymers comprising: from 30% to 90%, by weight, of a monomer (matrix) corresponding to an N-acryloylpolymethylenimine of formula: ##STR12## with R 1 =H or --CH 3 ##STR13## with n 1 =4,5 or 6 or ##STR14## or a N-acryloyldialkylamide, of formula: ##STR15## with R 1 having the same meaning as above R 2 =--CH 3 or --C 2 H 5 from 2% to 50%, by weight, of a monomer (linker) corresponding to an N,N'-diacryloyldiaminoalcane of formula ##STR16## with n 2 =1 or 2 and from 2% to 65%, by weight, of a monomer (functionalization agent) corresponding to an acryloylaminoacid or ester, racemic of formula: ##STR17## with R 1 =H or --CH 3 R 3 =H or --CH 3 n 3 =1, 2, 3 or 5 or an asymetric N-acryloylaminoacide (or ester) (L series) of the formula: ##STR18## with R 1 =H or --CH 3 R 3 having the same meaning as above ##STR19## or the N-acryloyl (L) proline, or its methyl ester of the formula: ##STR20## with R 1 =H or --CH 3 R 3 having the same meaning as above.
Claim 3
Dependent Claim
29 words
Copolymers according to claim 1 comprising from 70 to 90% of the matrix, from 3 to 10% of the linker and from 10 to 20% of the functionalization agent.
Claim 4
Dependent Claim
20 words
Preparation process of copolymers according to claims 1 or 2 consisting in inducing the radical polymerization of the three monomers.
Claim 5
Dependent Claim
31 words
Preparation process according to claim 3 consisting in effecting the polymerization in aqueous solution, at a temperature between 0° and 50° C., in the presence of an initiator of radical polymerization.
Claim 6
Dependent Claim
17 words
Preparation process according to claim 4, consisting in effecting a polymerization in block in the aqueous solution.
Claim 7
Dependent Claim
23 words
Preparation process according to claim 3, consisting in effecting a polymerization in emulsion, in the presence of a non miscible liquid organic phase.
Claim 8
Dependent Claim
15 words
Cation exchanger resin consisting essentially of a copolymer as defined in claims 1 or 2.
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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |