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US4256859A Expired / Lapsed US ⏱️ 0.0 years remaining

Substituted crown polyethers

Assignee: Dow Chemical Co
•
Filing: 1979-03-28
•
Granted: 1981-03-17
•
Expires: 1999-03-28
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Abstract

Abstract Substituted crown polyethers and processes for their manufacture and use are disclosed.

Inventors

  • 👤 Edmund P. Woo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:21
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/068; B01J45/00; C07; C07D; C07D323/00; C08F; C08F8/00; C08G65/02; C08G65/04; C08G65/22; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; B01J2231/00; B01J2231/40; B01J2531/00; B01J2531/90; B01J2531/98; B01J2531/985

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 94 words
A substituted crown polyether of the formula ##STR13## wherein (1) R 1 is a polymeric radical selected from reactive halogen containing polymers, homopolymers of acrylates, and copolymers containing acrylate functionality; (2) A is an alkylene group represented by the formula ##STR14## wherein p is zero or 1, R 2 to R 7 are each occurrence independently hydrogen or radicals having up to 15 carbons taken from a group consisting of alkyl, aryl and arylalkyl; (3) n is 3, 4, 5 or 6; and (4) q is an integer greater than or equal to one.
Claim 2
Dependent Claim 94 words
A substituted crown polyether of the formula ##STR13## wherein (1) R 1 is a polymeric radical selected from reactive halogen containing polymers, homopolymers of acrylates, and copolymers containing acrylate functionality; (2) A is an alkylene group represented by the formula ##STR14## wherein p is zero or 1, R 2 to R 7 are each occurrence independently hydrogen or radicals having up to 15 carbons taken from a group consisting of alkyl, aryl and arylalkyl; (3) n is 3, 4, 5 or 6; and (4) q is an integer greater than or equal to one.
Claim 3
Dependent Claim 93 words
A substituted crown polyether according to claim 1 formed by covalently bonding a hydroxymethyl crown ether reactant of the formula ##STR15## wherein A is an alkylene group represented by the formula ##STR16## wherein p is zero or 1, R 2 to R 7 are each occurrence independently hydrogen or radicals having up to 15 carbons taken from a group consisting of alkyl, aryl, and arylalkyl, and n is 3, 4, 5 or 6, to a polymeric resin selected from a group consisting of cross-linked chloromethylated polystyrene, homopolymers of acrylates and copolymers of acrylates.
Claim 4
Dependent Claim 22 words
The substituted crown polyether according to claim 2 wherein A of the hydroxymethyl crown ether reactant is --CH 2 --CH 2 --.
Claim 5
Dependent Claim 22 words
The substituted crown polyether according to claim 2 wherein the hydroxymethyl crown ether reactant is covalently bonded to cross-linked, chloromethylated polystyrene beads.
Claim 6
Dependent Claim 54 words
The substituted crown polyether according to claim 4 wherein the cross-linked, chloromethylated polystyrene beads may vary in size from about American Standard mesh size 400 to about American Standard mesh size 16, being cross-linked from about 1 percent to about 10 percent and containing at least 0.1 meq of chlorine per gram of beads.
Claim 7
Dependent Claim 18 words
The substituted crown polyether according to claim 4 wherein the hydroxymethyl crown ether reactant is hydroxymethyl 18-crown-6 polyether.
Claim 8
Dependent Claim 26 words
In a nucleophilic substitution reaction process whereby a phase-transfer catalyst is utilized, the improvement wherein the phase-transfer catalyst is a substituted crown polyether of claim 1.
Claim 9
Dependent Claim 18 words
The process according to claim 7 wherein p is zero, and R 2 to R 7 are hydrogen.
Claim 10
Dependent Claim 41 words
The process according to claim 8 wherein the substituted crown ether phase-transfer catalyst is formed by covalently bonding hydroxymethyl 18-crown-6 polyether to a polymeric resin selected from a group consisting of cross-linked, chloromethylated polystyrene, homopolymers of acrylates, and copolymers of acrylates.
Claim 11
Dependent Claim 15 words
The process according to claim 9 wherein the polymeric resin is cross-linked, chloromethylated polystyrene beads.
Claim 12
Dependent Claim 52 words
The process according to claim 10 wherein the cross-linked, chloromethylated polystyrene beads may vary in size from about American Standard mesh size 400 to about American Standard mesh size 16, being cross-linked from about 1 percent to about 10 percent and containing at least 0.1 meq of chlorine per gram of beads.
Claim 13
Dependent Claim 22 words
The improved nucleophilic substitution process according to claim 10 wherein the reaction process is conducted at temperatures up to about 150° C.
Claim 14
Dependent Claim 123 words
A process for covalently bonding hydroxymethyl substituted crown ether compounds to cross-linked chloromethylated polystyrene beads comprising mixing hydroxymethyl substituted crown ether compounds of the formula ##STR17## wherein A is an alkylene group represented by the formula ##STR18## wherein p is zero or 1, R 2 to R 7 are each occurrence independently hydrogen or radicals having up to 15 carbons taken from a group consisting of alkyl, aryl, and arylalkyl; and n is 3, 4, 5 or 6, with an alkali metal hydride in an inert organic solvent selected from a group consisting of dimethyl formamide, dimethyl sulfoxide, alkylated polyethers, and a mixture of toluene and dioxane; adding cross-linked chloromethylated polystyrene; refluxing the mixture at an elevated temperature; and recovering the resulting product.
Claim 15
Dependent Claim 123 words
A process for covalently bonding hydroxymethyl substituted crown ether compounds to cross-linked chloromethylated polystyrene beads comprising mixing hydroxymethyl substituted crown ether compounds of the formula ##STR17## wherein A is an alkylene group represented by the formula ##STR18## wherein p is zero or 1, R 2 to R 7 are each occurrence independently hydrogen or radicals having up to 15 carbons taken from a group consisting of alkyl, aryl, and arylalkyl; and n is 3, 4, 5 or 6, with an alkali metal hydride in an inert organic solvent selected from a group consisting of dimethyl formamide, dimethyl sulfoxide, alkylated polyethers, and a mixture of toluene and dioxane; adding cross-linked chloromethylated polystyrene; refluxing the mixture at an elevated temperature; and recovering the resulting product.

References Cited (Backward Citations)

US3959390A Cited
US3840606A Cited
US3824215A Cited
US4113739A Cited
US4003961A Cited
US4043979A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-03-16 1984-09-15 1985-03-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-03-16 1988-09-15 1989-03-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-03-16 1992-09-15 1993-03-17 $7700.00 Window Closed / Lapsed

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