A method of purifying a biological composition includes: disposing loose cationic ligand-functionalized staple fibers and a biological composition within a mixing volume of a vessel; agitating the biological composition and the loose cationic ligand-functionalized staple fibers while they are in intimate contact with each other within the mixing volume to provide modified fibers and a purified biological composition; and separating at least a portion of the purified biological composition from the modified fibers and any loose cationic ligand-functionalized staple fibers with which it is in contact. The loose cationic ligand-functionalized staple fibers have a modified surface layer comprising a grafted acrylic polymer comprising 10 to 100 percent by weight of a cationically-ionizable monomer unit. An article for purifying a biological composition includes: a vessel having a mixing volume disposed therein; and the loose cationic ligand-functionalized staple fibers disposed within the mixing volume.

A method of forming a crosslinked polyphenol, the method comprising: reacting a bio-based phenolic compound comprising at least one phenolic hydroxyl group, with a crosslinking agent comprising at least two functional groups reactive with the phenolic hydroxyl group, wherein the at least two functional groups are each independently a halogen group, acid halide group, sulfonyl halide group, glycidyl group, anhydride group, or a combination comprising at least one of the foregoing, to provide the crosslinked polyphenol.

A method of forming a crosslinked polyphenol, the method comprising: reacting a bio-based phenolic compound comprising at least one phenolic hydroxyl group, with a crosslinking agent comprising at least two functional groups reactive with the phenolic hydroxyl group, wherein the at least two functional groups are each independently a halogen group, acid halide group, sulfonyl halide group, glycidyl group, anhydride group, or a combination comprising at least one of the foregoing, to provide the crosslinked polyphenol.

The present disclosure provides and article. The article includes: (A) a polyester fabric; (B) a coating on a surface of the polyester fabric, the coating comprising at least one of (i) an ethylene/vinyl acetate/maleic anhydride terpolymer and (ii) an ethylene/methyl acrylate/glycidyl methacrylate terpolymer.

The present disclosure provides and article. The article includes: (A) a polyester fabric; (B) a coating on a surface of the polyester fabric, the coating comprising at least one of (i) an ethylene/vinyl acetate/maleic anhydride terpolymer and (ii) an ethylene/methyl acrylate/glycidyl methacrylate terpolymer.

Polymers are described having repeat units of Formula (I):

##STR00001##

wherein R.sup.3 is H or alkyl group; x and t are positive integers; Q is C(O)O, C(O)NH, or direct bond; D is alkylene, arylene, or (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.m; E is O, S, NR.sup.5, or direct bond; R.sup.5 is H or alkyl; G is the residue of a polyisocyanate; V is a urethane, urea, or thiourea that bonds to other parts of the polymer compound or to a monovalent blocking group; s is 1 to 5; Y is O or a substituted or unsubstituted arylene group; A is an alkylene group; w, v, and y are 0 or 1; X is the residue of a cyclic or acyclic sugar alcohol which is substituted with R.sup.1, C(O)R.sup.1, (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.mR.sup.2, (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.mC(O)R.sup.1, or mixtures thereof; n and m are independently 0 to 20; R.sup.1 is independently an alkyl group; and R.sup.2 is independently H or alkyl group.

Polymers are described having repeat units of Formula (I):

##STR00001##

wherein R.sup.3 is H or alkyl group; x and t are positive integers; Q is C(O)O, C(O)NH, or direct bond; D is alkylene, arylene, or (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.m; E is O, S, NR.sup.5, or direct bond; R.sup.5 is H or alkyl; G is the residue of a polyisocyanate; V is a urethane, urea, or thiourea that bonds to other parts of the polymer compound or to a monovalent blocking group; s is 1 to 5; Y is O or a substituted or unsubstituted arylene group; A is an alkylene group; w, v, and y are 0 or 1; X is the residue of a cyclic or acyclic sugar alcohol which is substituted with R.sup.1, C(O)R.sup.1, (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.mR.sup.2, (CH.sub.2CH.sub.2O).sub.n(CH(CH.sub.3)CH.sub.2O).sub.mC(O)R.sup.1, or mixtures thereof; n and m are independently 0 to 20; R.sup.1 is independently an alkyl group; and R.sup.2 is independently H or alkyl group.

Hydrophobic and oleophobic coatings, methods of making same, and uses of same. A coating can comprise one or more oleophobic and/or hydrophobic layer(s) disposed on a substrate, e.g., a fabric or the like. A layer comprises polymeric particles, which may be at least partially coalesced and/or crosslinked, comprising (co) polymer chains comprising silicon-containing pendant groups. A method of making a layer comprises: coating a substrate with an aqueous dispersion of the polymeric particles; and, optionally, curing the layer, e.g., to coalesce and/or crosslink the polymeric particles. A method of making the aqueous dispersion may comprise: forming a reaction mixture comprising one or more monomers comprising silicon-containing pendant groups; optionally, one or more comonomers; surfactant, and water. Coatings of the present disclosure have use in aerospace applications, automotive applications, building and construction, food processing, and electronics, or the like.

Hydrophobic and oleophobic coatings, methods of making same, and uses of same. A coating can comprise one or more oleophobic and/or hydrophobic layer(s) disposed on a substrate, e.g., a fabric or the like. A layer comprises polymeric particles, which may be at least partially coalesced and/or crosslinked, comprising (co) polymer chains comprising silicon-containing pendant groups. A method of making a layer comprises: coating a substrate with an aqueous dispersion of the polymeric particles; and, optionally, curing the layer, e.g., to coalesce and/or crosslink the polymeric particles. A method of making the aqueous dispersion may comprise: forming a reaction mixture comprising one or more monomers comprising silicon-containing pendant groups; optionally, one or more comonomers; surfactant, and water. Coatings of the present disclosure have use in aerospace applications, automotive applications, building and construction, food processing, and electronics, or the like.

Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E):

(A) polyacrylate obtained in the polymerisation of components (M1) CH.sub.2CR.sup.3COOR.sup.1 with (M2) CH.sub.2CR.sup.3COOR.sup.2 and optionally (M3) CH.sub.2CR.sup.3XR.sup.4
(B) wax
(C) blocked isocyanate
(D) organic polysiloxane;
(E) melamine resin;
wherein
R.sup.1 is a residue containing from 1 to 8 carbon atoms;
R.sup.2 is a residue containing from 9 to 40 carbon atoms;
R.sup.3H, CH.sub.3, C.sub.2H.sub.5;
XCOO, CONH
R.sup.4=glycidyl or CH.sub.2(CH.sub.2).sub.nOR.sup.5, wherein n is an integer in the range of from 1-10 and R.sup.5 is H or a residue containing from 1 to 6 carbon atoms;
and wherein the composition is based on water and/or an organic solvent and is fluorine-free.