Abstract: A base for use with scaffolding. The base includes side support members and cross members. The side support members have scaffold receiving members provided at ends thereof. The cross members extend between the side support members and are rotatably mounted to the side support members. Wheels are mounted to the cross members. As the cross members are rotated from a first position to a second position, the wheels are moved from an initial position in which the wheels are spaced from a ground or floor surface to a second position in which the wheels are positioned in engagement with the ground or floor surface.

Abstract: An anionic coloring agent according to the following formula: CA—RSA. CA comprises at least a chromophore and RSA is a spacer-arm with the chemical structure: —X—R-Z. X is a chemical bond, —S(O)n, or —NR1, wherein R1 is hydrogen or a C1-C10 alkyl group; R is a C1-C10 alkylene group; Z is —NR2R3, wherein R2 and R3 are, independently hydrogen or a C1-C10 alkyl group. Alternatively, Z is —NR4—(CH2)m—W, wherein R4 is hydrogen, a hydroxy C1-C10 alkyl group, or C1-C10 alkyl group; m is an integer from 1 to 10; and W is —COOR5, wherein R5 is hydrogen, a C1-C10 alkyl group; or —CONR6R7. R6 and R7 are, independently, a hydrogen atom, a C1-C10 alkyl group, —SO3H; —S—SO3H; —CN: or SO3R8 wherein, R8 is hydrogen, a C1-C10 alkyl group, or —S—SO3R9 group, wherein, R9 is hydrogen atom, or a C1-C10 alkyl group; provided that when X is —NR1, and Z is —NR2R3, then R1, R2 and R3 cannot be simultaneously a hydrogen atom.

Abstract: Anionic coloring agents comprising at least one spacer-arm bounded to their chemical structure, wherein said anionic coloring agents have the following formula: CA—RSA, wherein, CA is an anionic coloring agent comprising at least a chromophore group selected from the group consisting of azo, anthraquinone, formazane, dioxazine, phthalocyanine and/or sulphur; and RSA is said spacer-arm, which has the following chemical structure: —X—R-Z, wherein, X is a chemical bond or a group having the formula —S(O)n, wherein n is 1 or 2; or a —NR1— group, wherein R1 is a hydrogen atom or a linear or branched C1-C10 alkyl group; R is a linear or branched C1-C10 alkylene group; Z is a —NR2R3, —S—SO3R4, or —SO3R5 group, wherein, R2, R3, R4 and R5 are, independently, a hydrogen atom or a linear or branched C1-C10 alkyl group; or, Z is a —NR6—(CH2)m—W group, wherein, R6 a hydrogen atom, a linear or branched hydroxy C1-C10 alkyl group, or a linear or branched C1-C10 alkyl group; m is an integer from 1 to 10; and W is a —COOR7, —

Abstract: Anionic coloring agents comprising at least one spacer arm bounded to their chemical structure. These anionic coloring agents have the following general formula: CA-BE, wherein, CA is an anionic coloring agent comprising at least a cromophore group; and BE is the spacer arm, which has the following chemical structure: —(X—R—Z)r, wherein X is a direct link or a group having the formula —S(O)s, wherein s is 0, 1 or 2; or —NR1—, wherein, R1 is hydrogen or a C1-C10 alkyl group; R is a C1-C10 straight or branched alkylene group: Z is a polar group; and r is an integer equal or higher than 1.

Abstract: Disclosed is a process of separating protein using a polymeric composition. The composition includes a polymer formed from at least one monomer containing a polymerizable moiety chemically bonded to an anionic organic dye. The dye has an affinity for the protein to be separated. The process includes retaining the protein on the dye fraction and recovering the protein from the polymer.