Sekisui Kagaku Kogyo Kabushiki Kaisha

Yasuhiko Araki

Minoru Kohara

Fumio Kamiyama

Tomoo Shiohara

Norio Sagane

Mituo Nagata

Hajime Shohi

Shigeru Danjo

A photocurable composition comprising (a) 100 parts by weight of a resin having structural units derived from at least one alpha, beta-unsaturated ethylenically unsaturated monomer, (b) 10 to 300 parts by weight of a photopolymerizable monomer, (c) 0.1 to 20 parts by weight of a photopolymerization initiator, and (d) 0.01 to 1 part by weight of a compound represented by the following general formula (I) or general formula (II) ##STR1## wherein R.sup.1 represents a divalent aromatic hydrocarbon group having bonds at the ortho-position to each other; R.sup.2 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, a phenyl group or an aryl group having a C.sub.1 -C.sub.4 alkyl; R.sup.3 and R.sup.4 each represent an alkyl group having 1 to 10 carbon atoms, an aryl group or an aralkyl group; X.sup.1 represents oxygen, sulfur or N--R.sup.5 ; X.sup.2 represents oxygen, sulfur or NH; X.sup.3 represents nitrogen or CR.sup.6 ; X.sup.4 represents oxygen, sulfur or NR.sup.6 ; X.sup.5 represents nitrogen or CR.sup.7 ; X.sup.6 represents nitrogen or CH; R.sup.5 represents hydrogen, a hydroxyl group, halogen or an alkyl group having 1 to 4 carbon atoms; R.sup.6 represents hydrogen or an alkyl group having 1 to 4 carbon atoms; and R.sup.7 represents hydrogen, NH.sub.2, halogen or an alkyl group having 1 to 4 carbon atoms.

Photocurable resin composition having excellent adhesion to the surface

A filler for liquid chromatography, said filler consisting essentially of a hydrophilic ion-exchanger obtained by copolymerizing a mixture of (A) 5 to 90% by weight of a polymerizable monomer containing one polymerizable double bond and at least one carboxyl group per molecule and having a hydrophobic parameter of not more than 2.3, (B) 10 to 95% by weight of a crosslinkable polymerizable monomer containing at least two polymerizable double bonds per molecule and having a hydrophobic parameter of not more than 2.3, and (C) 0 to 85% by weight of a monomer being different from the monomer (A), containing one polymerizable double bond per molecule and having a hydrophobic parameter of not more than 2.3; and a method for separating a biological material such as proteins, enzymes and amino acids by liquid chromatography using the aforesaid filler.

Filler for liquid chromatography useful for separating a hemoglobin

A process for stabilizing a chlorine-containing resin which comprises contacting a chlorine-containing resin with one or more gaseous hydrides.

Process for stabilizing chlorine-containing resins

Growing community of inventors

Amagasaki, Japan

Yasuhiko Araki