The present invention relates to an ampholytic polymeric system obtainable by a process comprising the copolymerization of (i) a monomer according to Formula (1), (ii) an ethylenically unsaturated cationic monomer and (iii) a (co)polymer comprising an ethylenically unsaturated anionic monomer which comprises a sulfonate group: (1) wherein X is O or NR.sup.2, R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen and C1-C6 alkyl groups or wherein R.sup.1 and R.sup.2 form together a (CR.sup.1R.sup.2)n- chain, wherein n is 3 to 12, and wherein R.sup.3 is independently selected from the group consisting of hydrogen and CH.sub.3. The present invention further relates to the use of ampholytic polymeric system in separation processes. ##STR00001##

There is provided a highly branched lipophilic polymer that is excellent in blending and dispersing properties in a matrix resin, and is possible to provide surface modification properties such as excellent lipophilicity (anti-fingerprint property) and the like to a coating that is obtained from the resin composition while the intrinsic transparency of the resin is not impaired; and a photopolymeizable composition comprising the highly branched lipophilic polymer. A highly branched lipophilic polymer obtained by polymerizing a monomer A containing two or more radically polymerizable double bonds per molecule and a monomer B containing a C.sub.6-30 alkyl group or a C.sub.3-30 alicyclic group and at least one radically polymerizable double bond per molecule in the presence of 5 to 200 mol % of a polymerization initiator C relative to the number of moles of the monomer A. A photopolymeizable composition comprising the highly branched lipophilic polymer.

There is provided a highly branched lipophilic polymer that is excellent in blending and dispersing properties in a matrix resin, and is possible to provide surface modification properties such as excellent lipophilicity (anti-fingerprint property) and the like to a coating that is obtained from the resin composition while the intrinsic transparency of the resin is not impaired; and a photopolymeizable composition comprising the highly branched lipophilic polymer. A highly branched lipophilic polymer obtained by polymerizing a monomer A containing two or more radically polymerizable double bonds per molecule and a monomer B containing a C.sub.6-30 alkyl group or a C.sub.3-30 alicyclic group and at least one radically polymerizable double bond per molecule in the presence of 5 to 200 mol % of a polymerization initiator C relative to the number of moles of the monomer A. A photopolymeizable composition comprising the highly branched lipophilic polymer.

Disclosed are a PVC foam processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, provided are a PVC foam processing aid and a polyvinyl chloride resin composition exhibiting superior aggregation property and improving foam moldability of polyvinyl chloride (PVC) resins, prepared therefrom.

Disclosed are a PVC foam processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, provided are a PVC foam processing aid and a polyvinyl chloride resin composition exhibiting superior aggregation property and improving foam moldability of polyvinyl chloride (PVC) resins, prepared therefrom.

Disclosed are a PVC foam processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, provided are a PVC foam processing aid and a polyvinyl chloride resin composition exhibiting superior aggregation property and improving foam moldability of polyvinyl chloride (PVC) resins, prepared therefrom.

Provided are a method for producing a polymer dispersion for a solid electrolytic capacitor which enables production of a solid electrolytic capacitor having a large capacitance and a low equivalent series resistance, and a method for producing a solid electrolytic capacitor using the polymer dispersion. The method for producing a polymer dispersion for a solid electrolytic capacitor according to the present invention includes a step (1) of polymerizing a monomer as a constitutional unit of a conjugated conductive polymer in a liquid containing at least one of a seed particle with protective colloid formed of a polyanion and a polyanion to obtain a polymer-containing liquid; a step (2) of performing a first dispersion treatment on the polymer-containing liquid to obtain a dispersion (a); and a step (3) of adding an electric conductivity improver to the dispersion (a), and performing a second dispersion treatment to obtain a dispersion (b).

Provided are a method for producing a polymer dispersion for a solid electrolytic capacitor which enables production of a solid electrolytic capacitor having a large capacitance and a low equivalent series resistance, and a method for producing a solid electrolytic capacitor using the polymer dispersion. The method for producing a polymer dispersion for a solid electrolytic capacitor according to the present invention includes a step (1) of polymerizing a monomer as a constitutional unit of a conjugated conductive polymer in a liquid containing at least one of a seed particle with protective colloid formed of a polyanion and a polyanion to obtain a polymer-containing liquid; a step (2) of performing a first dispersion treatment on the polymer-containing liquid to obtain a dispersion (a); and a step (3) of adding an electric conductivity improver to the dispersion (a), and performing a second dispersion treatment to obtain a dispersion (b).

The present invention is directed to compositions and methods of removing potassium or treating hyperkalemia by administering pharmaceutical compositions of cation exchange polymers with low crosslinking for improved potassium excretion and for beneficial physical properties to increase patient compliance.

The present invention is directed to compositions and methods of removing potassium or treating hyperkalemia by administering pharmaceutical compositions of cation exchange polymers with low crosslinking for improved potassium excretion and for beneficial physical properties to increase patient compliance.