Fluorine free compositions for treating fibrous substrates to make the fibrous substrates water repellent, method for treating the fibrous substrates with said compositions and water repellent fibrous substrates treated with said fluorine free compositions.

Fluorine free compositions for treating fibrous substrates to make the fibrous substrates water repellent, method for treating the fibrous substrates with said compositions and water repellent fibrous substrates treated with said fluorine free compositions.

A surface treatment agent containing: (A) a water repellent oil repellent polymer having a repeating unit derived from at least one water repellent oil repellent monomer selected from (A1) fluorine-containing monomers and (A2) non-fluorine monomers having a hydrocarbon group with 7-40 carbon atoms; (B) a silicone polymer represented by formula R.sup.53.sub.3SiO[Si(R.sup.51).sub.2O].sub.a[Si(R.sup.51)(R.sup.52)O].sub.bSiR.sup.53.sub.3 (wherein each R.sup.51 group independently represents hydrogen, alkyl having 1-20 carbon atoms, aryl having 6-20 carbon atoms or alkoxy having 1-4 carbon atoms; each R.sup.52 independently represents a saturated hydrocarbon group having 23-40 carbon atoms; each R.sup.53 independently represents a hydrogen atom, an alkyl group having 1-20 carbon atoms, an aryl group having 6-20 carbon atoms, an alkoxy group having 1-4 carbon atoms or a saturated hydrocarbon group having 23-40 carbon atoms; a represents an integer of 0 or more; b represents an integer of 1 or more; and (a+b) is 10-200); and (C) a liquid medium.

Provided is a fiber treatment agent which is capable of imparting excellent moisture absorbing and releasing properties and exhibits excellent wash durability. The fiber treatment agent of the present invention includes a copolymer (A) having a structural unit (I) derived from a carboxyl group-containing monomer (a) and a structural unit (II) derived from a hydroxy group-containing monomer (b).

Provided is a fiber treatment agent which is capable of imparting excellent moisture absorbing and releasing properties and exhibits excellent wash durability. The fiber treatment agent of the present invention includes a copolymer (A) having a structural unit (I) derived from a carboxyl group-containing monomer (a) and a structural unit (II) derived from a hydroxy group-containing monomer (b).

Provided is a biological fluid-treating filter for treating a biological fluid containing erythrocytes, which has a matrix and a polymer retained by the matrix, the polymer having a zwitterion-containing functional group and a basic nitrogen-containing functional group. By using the filter in which the polymer has the zwitterion-containing functional group and the basic nitrogen-containing functional group, it is possible to treat the biological fluid containing erythrocytes without adversely affecting the erythrocytes.

Provided is a biological fluid-treating filter for treating a biological fluid containing erythrocytes, which has a matrix and a polymer retained by the matrix, the polymer having a zwitterion-containing functional group and a basic nitrogen-containing functional group. By using the filter in which the polymer has the zwitterion-containing functional group and the basic nitrogen-containing functional group, it is possible to treat the biological fluid containing erythrocytes without adversely affecting the erythrocytes.

A polymerizable composition, polymer capsules and a fabric softener composition are provided. The fabric softener composition includes polymer capsules in which cationic groups are introduced on the surfaces thereof, so that early release of a fragrance can be suppressed and aromas can be generated depending on rupture of a shell material of the polymer capsules by light friction at certain times. In addition, the polymer capsules have high adhesion to fibers and are not attached to fibers during washing to minimize the discharged fragrance, so that sufficient aromas can be provided even if a small amount of fragrance is used.

A surface modifying composition for modifying a surface of a formed product made of high-density polyethylene or ultra-high molecular weight polyethylene, the composition comprising: a copolymer having a unit of a first monomer having an aliphatic group having 10 or more carbon atoms and a unit of a second monomer having any of an amino group, an epoxy group, and an ether group, and a solvent having a boiling point of 100 C. or more and being at least one selected from the group consisting of a halogen-based solvent, an alkane solvent, a cycloalkane solvent, a dicycloalkane solvent, an aromatic solvent, and a nitro-based solvent.

The present invention relates to compositions comprising at least one cationic polyelectrolyte, at least one anionic compound and at least one non-ionic surfactant and to the use thereof for finishing fibres and textiles.