The present application provides a dispersion dispersed satisfactorily cellulose nanofibers, powdery cellulose nanofibers obtained by pulverizing thereof, a resin composition obtained by blending thereof and a molding raw material for a 3D printer by using thereof. It is possible to obtain a composition uniformly finely dispersed the cellulose nanofibers by treating a mixture containing unmodified cellulose nanofibers and a dispersant using a high speed agitating Medialess disperser, and followed by pulverizing the composition to blend with a resin and a rubber component. Also, a resin composition improved in mechanical properties and heat resistance, obtained by blending the powdery cellulose nanofibers above with a thermoplastic resin or a thermosetting resin, is useful as a molding material for a 3D printer.

An object is to provide a zwitterionic compound having an excellent protein adsorption inhibitory effect. The zwitterionic compound is a polymer comprising a unit represented by the following formula (1):

##STR00001##

wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is OH or O.sup.−, X.sup.1 is —O— or —N(Q.sup.1)-, Q.sup.1 is a hydrogen atom or a C.sub.1-6 alkyl group, m is an integer of 1 to 12, and n is an integer of 1 to 4.

The present invention provides an inkjet ink comprising: 10-50% by weight of one or more monomers each having a log P.sub.octanol/water value of 5.0 or more, based on the total weight of the ink; a photoinitiator package comprising one or more photoinitiators each having a log P.sub.octanol/water value of less than 4.0, and one or more photoinitiators selected from (I) and mixtures thereof, wherein n is a value from 1 to 10 and a+b+c is a value from 1 to 20; and wherein the one or more photoinitiators each having a log P.sub.octanol/water value of less than 4.0 are present in the ink in an amount of 0.5-4.5% by weight, based on the total weight of the ink. The present invention also provides a method of printing the inkjet ink of the present invention.

The present invention provides an inkjet ink comprising: 10-50% by weight of one or more monomers each having a log P.sub.octanol/water value of 5.0 or more, based on the total weight of the ink; a photoinitiator package comprising one or more photoinitiators each having a log P.sub.octanol/water value of less than 4.0, and one or more photoinitiators selected from (I) and mixtures thereof, wherein n is a value from 1 to 10 and a+b+c is a value from 1 to 20; and wherein the one or more photoinitiators each having a log P.sub.octanol/water value of less than 4.0 are present in the ink in an amount of 0.5-4.5% by weight, based on the total weight of the ink. The present invention also provides a method of printing the inkjet ink of the present invention.

A poly(vinylphosphonic acid) (PVPA) - (NH.sub.4).sub.2MoO.sub.4), gel polymer electrolyte can be prepared by incorporating redox-mediated Mo, or similar metal, into a PVPA, or similar polymer, matrix. Gel polymer electrolytes including PVPA/MoX, x representing the percent fraction Mo in PVPA, can be used to make supercapacitors including active carbon electrodes. The electrolytes can be in gel form, bendable and stretchable in a device. Devices including this gel electrolyte can have a specific capacitance (Cs) of 1276 F/g, i.e., a more than 50-fold increase relative to a PVPA system without Mo. A PVPA / Mo10 supercapacitor can have an energy density of 180.2 Wh/kg at power density of 500 W/kg, and devices with this hydrogel structure may maintain 85+% of their initial capacitance performance after 2300 charge-discharge cycles.

A solution for treating contact lens is provided. The solution includes about 0.01-1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.01-1 pbw of an inorganic salt, and about 100 pbw of water. The polymer has a number-average molecular weight of about 4,000 to about 1,000,000 daltons and has a structure of formula (I):

##STR00001##

wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C.sub.2-C.sub.12 alkyl group or C.sub.2-C.sub.12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1.

A solution for treating contact lens is provided. The solution includes about 0.01-1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.01-1 pbw of an inorganic salt, and about 100 pbw of water. The polymer has a number-average molecular weight of about 4,000 to about 1,000,000 daltons and has a structure of formula (I):

##STR00001##

wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C.sub.2-C.sub.12 alkyl group or C.sub.2-C.sub.12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1.

A liposome for use in delivering a therapeutically active agent to a subject in need thereof is disclosed herein. The liposome comprises: a) at least one bilayer-forming lipid; b) a polymeric compound having the general formula I: ##STR00001## wherein m, n, L, X, Y, and Z are as defined herein; and c) a therapeutically active agent, incorporated in the liposome and/or on a surface of the liposome.

The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R.sup.1—SH, where R.sup.1 is a C.sub.1-C.sub.4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C.sub.1-C.sub.3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

The invention relates to alkenyl(perfluoroalkyl)phosphinic acids, to the preparation and intermediates thereof, to the use thereof as monomers for the preparation of oligomers and/or polymers, to the corresponding oligomers/polymers, to the corresponding support materials comprising the oligomers/polymers, and to the use thereof as ion exchangers, as catalysts or extraction medium and corresponding salts thereof.