The invention provides a composition for the production of a fiber having organic solvent resistance, a fiber obtained by spinning the composition, and a biocompatible material containing the fiber. The composition contains (A) a polymer compound containing a unit structure represented by the formula (1) ##STR00001##
wherein each symbol is as described herein, (B) a crosslinking agent, (C) an acid compound, and (D) a solvent.

The present invention provides a liquid-crystalline elastomer having large generation force and a large amount of displacement. The liquid-crystalline elastomer according to the present invention is composed of a polymer of liquid-crystalline molecular units and cross-linking reagent units. Each of the cross-linking reagent units contains a bicyclo structure selected from the group consisting of a bicyclo [2,2,1] heptane structure or a bicyclo [2,2,2] octane structure. A molar ratio of the cross-linking reagents to the liquid-crystalline molecular units is not less than 0.1 and not more than 0.2. The bicyclo [2,2,1] heptane structure may be a trycyclodecane structure. The bicyclo [2,2,2] octane structure may be a trycycloundecane structure.

The process for the manufacture of an auto-oxidatively cross-linking hybrid polymer, in particular an aqueous hybrid polymer dispersion, comprises the step of reacting in a mini-emulsion process one or more ethylenically unsaturated monomers to form an addition polymer in the presence of a modified auto-oxidatively crosslinkable (AOC) polymer which has been modified with terminal unsaturated groups of the formula C(R1)CH2 wherein R1 is hydrogen, alkyl or aryl and wherein the AOC polymer is a hydrophobic polymer having an acid number between 5 to 30. The resulting aqueous hybrid polymer dispersion can be used for the manufacture of coating compositions, ink compositions or adhesives and coating compositions comprising the hybrid polymer dispersion as a binder.

The process for the manufacture of an auto-oxidatively cross-linking hybrid polymer, in particular an aqueous hybrid polymer dispersion, comprises the step of reacting in a mini-emulsion process one or more ethylenically unsaturated monomers to form an addition polymer in the presence of a modified auto-oxidatively crosslinkable (AOC) polymer which has been modified with terminal unsaturated groups of the formula C(R1)CH2 wherein R1 is hydrogen, alkyl or aryl and wherein the AOC polymer is a hydrophobic polymer having an acid number between 5 to 30. The resulting aqueous hybrid polymer dispersion can be used for the manufacture of coating compositions, ink compositions or adhesives and coating compositions comprising the hybrid polymer dispersion as a binder.

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 three dimensional manufactured product is manufactured A speed of filing an uncured light curing resin in a space for a next layer is enhanced, to improve a manufacturing speed. One surface of a container housing a light curing resin is configured by a gas-permeable sheet that faces the light curing resin, and transmits irradiation light of a light irradiating apparatus, and a light transmitting plate disposed at an outer side of the container from the gas permeable member. A pressurizing chamber controllable in pressure by a pressure controlling apparatus is defined between the gas-permeable sheet and the light transmitting plate. At moving a manufacturing stage, an inside of the pressurizing chamber is de-pressurized to cause the gas-permeable sheet to perform concave surface deformation, and at a time of performing light irradiation, gas in the pressurizing chamber is caused to permeate into the light curing resin by pressurizing.

A three dimensional manufactured product is manufactured A speed of filing an uncured light curing resin in a space for a next layer is enhanced, to improve a manufacturing speed. One surface of a container housing a light curing resin is configured by a gas-permeable sheet that faces the light curing resin, and transmits irradiation light of a light irradiating apparatus, and a light transmitting plate disposed at an outer side of the container from the gas permeable member. A pressurizing chamber controllable in pressure by a pressure controlling apparatus is defined between the gas-permeable sheet and the light transmitting plate. At moving a manufacturing stage, an inside of the pressurizing chamber is de-pressurized to cause the gas-permeable sheet to perform concave surface deformation, and at a time of performing light irradiation, gas in the pressurizing chamber is caused to permeate into the light curing resin by pressurizing.

A precatalyst for the polymerization of -olefins, having the formula Fe.sub.uM.sup.alc.sub.vX.sub.w(LA).sub.y(LB).sub.z wherein: M.sup.alc is an alkali metal and/or an alkaline-earth metal. X is an anion; LA is a Lewis acid; LB is a Lewis base; u is between 0.001 and 10; v is an integer 1; w is between 1 and 20; y is between 0 and 10;
z is between 0 and 10.

A fluorine-free composition includes one or more compounds derived from a reaction mixture that includes: (i) at least one isocyanate-reactive (i.e., functionalized) oligomer comprising 2 to 20 repeating units; (ii) at least one polyisocyanate; (iii) optionally at least one additional isocyanate-reactive compound; and (iv) optionally at least one isocyanate blocking agent; wherein the isocyanate-reactive oligomer is made by the radical-initiated reaction of a reaction mixture comprising at least one mercaptan and Sat least one (meth)acrylate monomer, wherein the at least one (meth)acrylate monomer comprises at least one isocyanate-derived group (e.g., a urethane group or a urea group) and at least one hydrocarbon group having at least 16 carbon atoms (and in some embodiments, up to 60 carbon atoms). Such compositions are useful for treating fibrous substrates to enhance their water-repellency.

A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.