Abstract: A surface treating agent comprising a copolymer including: a monomer (A) having a hydrophilic functional group of formula (1), a monomer (B) having a basic functional group of formula (3) or (5), and a monomer (C) having a reactive functional group of formula (7), wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/and the monomer (C) between 87/10/3 and 98/1/1. In the formulas, the R groups and n are defined.

Abstract: A surface treating agent comprising a copolymer including: a monomer (A) having a hydrophilic functional group of formula (1), a monomer (B) having a basic functional group of formula (3) or (5), and a monomer (C) having a reactive functional group of formula (7), wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/and the monomer (C) between 87/10/3 and 98/1/1. In the formulas, the R groups and n are defined.

Abstract: A surface treating agent comprising a copolymer including: a monomer (A) having a hydrophilic functional group of formula (2), a monomer (B) having a basic functional group of formula (3) or (5), and a monomer (C) having a reactive functional group of formula (8), wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/and the monomer (C) between 87/10/3 and 98/1/1. In the formulas, the R groups and n are defined.

Abstract: A surface treating agent includes a copolymer including: a monomer (A) having a hydrophilic functional group of formula (1) or (2) below, a monomer (B) having a basic functional group, and a monomer (C) having a reactive functional group as monomer components, wherein the copolymer has a molar ratio of the monomer (A)/the monomer (B)/and the monomer (C) being between 70/15/15 and 98/1/1. (wherein each of R1 represents a hydrogen atom or a methyl group, R2 represents an alkyl group having 1 to 4 carbon atoms, n represents an integer of 2 to 4, and each of R3 and R4 independently represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms).

Abstract: A surface treating agent is comprising a copolymer including: a monomer (A) having a hydrophilic functional group of formula (1) or (2) below, a monomer (B) having a basic functional group and a monomer (C) having a reactive functional group as monomer components, wherein the copolymer has a molar ratio of the monomer (A)/(B)/(C) between 70/15/15 to 98/1/1.

Abstract: A copolymer having excellent blood compatibility comprising an alkoxyalkyl (meth)acrylate and a comonomer having a basic functional group, a surface treating agent for blood filter using the same, and blood filter coated with the same on the surface thereof. The copolymer is useful as blood filter material for efficiently removing leucocytes and platelets while preventing damages of blood components at the time of blood filtration to a low level.

Abstract: A copolymer comprising a monomer of formula (1) below and a monomer having a basic functional group copolymerizable with the monomer as monomer components, wherein molar ratio of the monomer of formula (1) to the monomer having a basic functional group is 85/15 to 99.9/0.1 and wherein the copolymer has a number based mean molecular weight of 5,000 to 500,000. The copolymer is excellent in antithrombotic activity and further in biocompatibility and can be used as a medial material having high hydrophilicity. It also can serve as an antithrombotic surface treating agent. (wherein R1 is an alkylene group having 1 to 4 carbon atoms, R2 is an alkyl group having 1 to 4 carbon atoms, and R3 represents hydrogen or a methyl group).

Abstract: A copolymer comprising a monomer of formula (1) below and a monomer having a basic functional group copolymerizable with the monomer as monomer components, wherein molar ratio of the monomer of formula (1) to the monomer having a basic functional group is 85/15 to 99.9/0.1 and wherein the copolymer has a number based mean molecular weight of 5,000 to 500,000. The copolymer is excellent in antithrombotic activity and further in biocompatibility and can be used as a medial material having high hydrophilicity. It also can serve as an antithrombotic surface treating agent.

Abstract: A copolymer having excellent blood compatibility comprising an alkoxyalkyl (meth)acrylate and a comonomer having a basic functional group, a surface treating agent for blood filter using the same, and blood filter coated with the same on the surface thereof. The copolymer is useful as blood filter material for efficiently removing leucocytes and platelets while preventing damages of blood components at the time of blood filtration to a low level.

Abstract: A matrix for supporting cells such as animal cells is provided that enables cells to be supported at high efficiency and density in a short period. The matrix contains a plurality of cone shaped pores having an average diameter opening in an upstream surface of the matrix of from 500 to 1500 &mgr;m. The diameter decreases from the upstream surface to a downstream surface, and the average diameter of the cone shaped pores in the whole matrix is from 100 to 1000 &mgr;m. The matrix also contains a plurality of communicating pores that communicate with the cone shaped pores and with each other. These pores have an average diameter of from 5 to 100 &mgr;m, and the diameter decreases from a pore opening positioned near one surface of the matrix or near an interior surface of the cone shaped pores to a pore opening positioned remote from the surfaces. The matrix may also contain a plurality of column shaped pores having an average diameter of 100 to 1000 &mgr;m.