An article that includes a functionalized copolymer and the use thereof, particularly in a process for binding biomaterials, such as in a process for separating aggregated proteins from monomeric proteins in a biological solution; wherein the article includes: a) a porous substrate; and b) a copolymer covalently attached to the porous substrate, the copolymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein 1) each of a first plurality of pendant groups comprises: (a) at least one acidic group or salt thereof; and (b) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and 2) each of a second plurality of pendant groups comprises: (a) at least one acidic group or salt thereof; and (b) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and wherein the first plurality of pendant groups are different than the second plurality of pendant groups; and wherein a mole ratio of the first plurality of pendant groups to the second plurality of pendant groups is in a range of 95:5 to 5:95.
[EN] PROCESSES FOR SEPARATING AGGREGATED PROTEINS FROM MONOMERIC PROTEINS IN A BIOLOGICAL SOLUTION<br/>[FR] PROCÉDÉS DE SÉPARATION DE PROTÉINES AGRÉGÉES À PARTIR DE PROTÉINES MONOMÈRES DANS UNE SOLUTION BIOLOGIQUE
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2018048698A1
公开(公告)日:2018-03-15
A process for separating aggregated proteins from monomeric proteins in a biological solution, the process including: providing at least one filter element having a contacting surface, wherein the filter element comprises filter media comprising: a porous substrate; and disposed on the porous substrate, a polymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein each of a first plurality of pendant groups comprises: (1) at least one acidic group or salt thereof; and (2) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and allowing an initial biological solution to contact the contacting surface of the filter element under conditions effective to separate the aggregated proteins from the monomeric proteins such that a final biological solution includes purified monomeric proteins.
ACRYLIC PRESSURE-SENSITIVE ADHESIVES WITH ACYLAZIRIDINE CROSSLINKING AGENTS
申请人:Erdogan Belma
公开号:US20110054115A1
公开(公告)日:2011-03-03
A pre-adhesive composition is described comprising an acid-functional (meth)acrylate copolymer and an acylaziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles.
[EN] (METH)ACRYLOYL-AZIRIDINE CROSSLINKING AGENTS AND ADHESIVE POLYMERS<br/>[FR] AGENTS DE RÉTICULATION (MÉTH)ACRYLOYL-AZIRIDINE ET POLYMÈRES ADHÉSIFS
申请人:3M INNOVATIVE PROPERTIES CO
公开号:WO2011087664A1
公开(公告)日:2011-07-21
Described is a pre-adhesive, curable composition comprising an acid-functional (meth)acrylate copolymer and a novel (meth)acryloyl-aziridine crosslinking agent, which when crosslinked provides a pressure-sensitive adhesive composition.
A photoactive compound that is the Michael addition reaction product of an aziridine compound and a photoinitiator-functional (meth)acrylate is described. The compound can be used to crosslink (meth)acrylic polymers via a hydrogen abstracting or an alpha-cleavage mechanism.