US 11,896,953 B2 · HLB copolymers

Abstract

Polymeric adsorbents useful for solid phase extraction (SPE) comprising a copolymer formed by copolymerizing at least one hydrophobic monomer including divinylbenzene and at least one hydrophilic monomer including acrylonitrile are provided. Also provided are SPE cartridges including a divinylbenzene-acrylonitrile hydrophilic-lipophilic balance adsorbent. Further provided are methods of using a divinylbenzene-acrylonitrile hydrophilic-lipophilic balance adsorbent in conventional and simplified SPE techniques.

Claims49

Dependent claims

A polymeric adsorbent for solid phase extraction (SPE) comprising a copolymer formed by copolymerizing at least one hydrophobic monomer and at least one hydrophilic monomer,

wherein the hydrophobic monomer comprises divinylbenzene and the hydrophilic monomer comprises acrylonitrile
wherein the copolymerization is carried out in the presence of a nonpolar porogen and a polar porogen.

Dependencies are inferred from the claim text.

Facts

Application

16/640,575Filed 24 Aug 2018 · us provisional application

Priority

24 Aug 2017

Published

US 2020/0197907 A125 Jun 2020

Granted

13 Feb 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification30 codes

B01J 20/261
Synthetic macromolecular compounds: obtained by reactions only involving carbon to carbon unsaturated bonds
B01J 20/264
Synthetic macromolecular compounds: derived from different types of monomers, e.g. linear or branched copolymers, block copolymers, graft copolymers
B01J 20/267
Modified or post-treated polymers: cross-linked polymers
B01J 20/28004
Characterised by their physical properties: sorbent size or size distribution, e.g. particle size

HLB copolymers

Life of this patent

HLB copolymers

Life of this patent

Abstract

Claims49