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.

The disclosure provides a polyurethane-acrylate water repellant prepared by double bonds in the side chain, and belongs to the technical field of environment-friendly polymers. The disclosure introduces the carbon-carbon double bonds into the polyurethane side chain through a carbon-carbon double bond-containing dihydroxy micromolecular chain extender having a carbon chain structure to adjust the number of double bonds on a waterborne polyurethane chain segment participating in a free radical polymerization with acrylate monomers, thereby generating a branched structure, and improving the compatibility of polyurethane and acrylate; the fastness of a fabric is increased by combining an oxime blocking structure with the fabric. The polyurethane-acrylate water repellant prepared by the disclosure is non-toxic and low in VOC, and the finished fabric has significantly improved physical and chemical properties, and good application prospects.

The disclosure provides a polyurethane-acrylate water repellant prepared by double bonds in the side chain, and belongs to the technical field of environment-friendly polymers. The disclosure introduces the carbon-carbon double bonds into the polyurethane side chain through a carbon-carbon double bond-containing dihydroxy micromolecular chain extender having a carbon chain structure to adjust the number of double bonds on a waterborne polyurethane chain segment participating in a free radical polymerization with acrylate monomers, thereby generating a branched structure, and improving the compatibility of polyurethane and acrylate; the fastness of a fabric is increased by combining an oxime blocking structure with the fabric. The polyurethane-acrylate water repellant prepared by the disclosure is non-toxic and low in VOC, and the finished fabric has significantly improved physical and chemical properties, and good application prospects.

To provide an acrylic sol composition capable of reducing deterioration of physical properties of a sealing material due to moisture absorption after being left in a high-temperature and high-humidity atmosphere for a long time, and also suppressing oxygen inhibition. An acrylic sol composition contains an acrylic resin, an ultraviolet curing resin, a blocked isocyanate resin, and a filler, wherein, with respect to 100 parts by weight of the acrylic resin, 80 to 150 parts by weight of the ultraviolet curing resin, 50 to 110 parts by weight of an amine-based blocked isocyanate resin as the blocked isocyanate resin, and 100 to 180 parts by weight of silica as the filler are contained.

To provide an acrylic sol composition capable of reducing deterioration of physical properties of a sealing material due to moisture absorption after being left in a high-temperature and high-humidity atmosphere for a long time, and also suppressing oxygen inhibition. An acrylic sol composition contains an acrylic resin, an ultraviolet curing resin, a blocked isocyanate resin, and a filler, wherein, with respect to 100 parts by weight of the acrylic resin, 80 to 150 parts by weight of the ultraviolet curing resin, 50 to 110 parts by weight of an amine-based blocked isocyanate resin as the blocked isocyanate resin, and 100 to 180 parts by weight of silica as the filler are contained.

The present invention provides a polyisocyanate composition and the like that contain a polyisocyanate compound represented by general formula (I), (II), (III) or (IV) (wherein the pluralities of R.sup.11, R.sup.21, R.sup.31 and R.sup.41 each independently represent an organic group, at least one of the pluralities of R.sup.11, R.sup.21, R.sup.31 and R.sup.41 is a group represented by general formula (V) (wherein each of the plurality of Y.sup.1 independently represents a single bond or the like, R.sup.51 represents a hydrogen atom or the like, and the wavy line indicates a bonding site) or the like, and in general formula (III), R.sup.32 represents a residue in which one hydroxyl group has been removed from a monohydric or higher alcohol).

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Aqueous inkjet ink for textile inkjet printing comprising dispersed pigments and a binder which is a carboxylated polyurethane having blocked isocyanate groups and method for using the same.

Aqueous inkjet ink for textile inkjet printing comprising dispersed pigments and a binder which is a carboxylated polyurethane having blocked isocyanate groups and method for using the same.

An object of the present invention is to provide a laminated polyester film that has good adhesion to an UV-curable resin, particularly has excellent adhesion to a coating agent such as an UV-curable ink, and has an excellent property to keep the adhesion at a high level over a long period of time. A laminated polyester film comprising: a polyester film; and a coating layer on at least one surface of the polyester film, the coating layer comprising a composition containing a polyurethane resin having a carboxyl group and having an acid value of 30 to 50 mgKOH/g and a crosslinking agent having a carboxyl group and having an acid value of 30 to 50 mgKOH/g.

The composition comprises a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2), and comprises 0.00002 to 2.0 parts by mass of the compound (B) with respect to 100 parts by mass of the compound (A),
(R.sub.1COO).sub.nR.sub.2(NCO).sub.m(1)
(R.sub.1COO).sub.nR.sub.2NHC(O)NHR.sub.2(OCOR.sub.1).sub.m(2)
wherein in general formulae (1) and (2), R.sub.1 is an ethylenically unsaturated group having 2 to 7 carbon atoms; R.sub.2 is a (m+n)-valent hydrocarbon group having 1 to 7 carbon atoms and optionally contain an ether group; R.sub.1 and R.sub.2 in the general formula (1) are the same as R.sub.1 and R.sub.2 in the general formula (2); and n and m each represent an integer of one or two.