An aspect of the present application relates to a resin composition, which contains a polymer having a structural unit represented by Formula (1) in a molecule and a free radical compound and in which the free radical compound has at least one free radical group selected from the group consisting of structures represented by Formulas (2), (3), (4) and (5) in the molecule.

There is provided a fluorine-containing ether compound represented by the following formula. R.sup.1—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—OCH.sub.2CH(OH)CH.sub.2O—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4—R.sup.5 (in the formula. R.sup.3 represents a perfluoropolyether chain; R.sup.2 and R.sup.4 represent a divalent linking group having a polar group; R.sup.1 and R.sup.5 represent a terminal group bonded to an oxygen atom of R.sup.2 or R.sup.4; and at least one of R.sup.1 and R.sup.5 is any one selected from the group consisting of an alkenyl group having 2 to 8 carbon atoms, an alkynyl group having 3 to 8 carbon atoms, an aromatic hydrocarbon-containing group, and an aromatic heterocycle-containing group).

A branched type hetero monodispersed polyethylene glycol represented by formula (1) ##STR00001##
where X.sup.1, Y.sup.1, n, E, L.sup.1, L.sup.2 and L.sup.3 are as defined herein.

A fluorine-containing ether compound characterized by being represented by the following formula (1):
R.sup.1—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4—R.sup.5  (1) In the formula (1), R.sup.3 is a perfluoropolyether chain. R.sup.2 and R.sup.4 are divalent linkage groups having a polar group and may be the same or different. R.sup.1 and R.sup.5 are bonded to an atom other than a carbon atom of R.sup.2 or R.sup.4. R.sup.1 and R.sup.5 are terminal groups composed of an organic group having 1 to 8 carbon atoms and may be the same or different. At least one of R.sup.1 and R.sup.5 is a chain organic group having 1 to 8 carbon atoms wherein one or more hydrogen atoms of the chain organic group is substituted with a group having an amide bond.

Provided is a softening agent for textiles characterized by containing a compound (A) and a crosslinking agent (B). The compound (A) is a non-silicone compound having a polyoxyalkylene chain in the molecule, and has a functional group (R1) capable of producing an ether, an ester, or a nitrogen-containing compound upon reacting with the crosslinking agent (B).

A higher secondary alcohol alkoxylate precursor is obtained by reacting a long-chain olefin with a (poly)alkylene glycol. The precursor has a content of (poly)alkylene glycol of 0.2% by mass or lower with respect to the total mass of the higher secondary alcohol alkoxylate; a higher secondary alcohol alkoxylate adduct which is an alkylene oxide adduct of the higher secondary alcohol alkoxylate precursor; and a higher secondary alkyl ether sulfate ester salt which is a sulfated product of the higher secondary alcohol alkoxylate precursor or the higher secondary alcohol alkoxylate adduct.

Polymeric reagents are provided comprising a moiety of atoms arranged in a specific order, wherein the moiety is positioned between a water-soluble polymer and a reactive group. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.

Polymeric reagents are provided comprising a moiety of atoms arranged in a specific order, wherein the moiety is positioned between a water-soluble polymer and a reactive group. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.

A curable composition includes, per 100 parts by mass of a curable compound, 0.1 to 10.0 parts by mass of a compound (A) including a structure represented by the following general formula (I), and 0.01 to 10.0 parts by mass of a base (B):

##STR00001##

where X represents a chalcogen atom, R.sup.1 and R.sup.2 each independently represent an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group, and R.sup.3 and R.sup.4 each independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, or an aralkyl group.

A fluorine-containing ether compound according to the present invention is expressed by the following formula (1) or the following formula (2):

Q.sup.1{—(R.sup.f12).sub.m2—O—(R.sup.f11O).sub.m1-A.sup.1}.sub.n1  Formula (1)

{A.sup.1-(OR.sup.f11).sub.m1—O—(R.sup.f12).sub.m2-}.sub.n2Q.sup.2-[(R.sup.f12).sub.m2—O—(R.sup.f11O).sub.m1—(R.sup.f12).sub.m2-Q.sup.3].sub.p—(R.sup.f12).sub.m2—O—(R.sup.f11O).sub.m1—(R.sup.f12).sub.m2-Q.sup.2-{(R.sup.f12).sub.m2—O—(R.sup.f11O).sub.m1-A.sup.1}.sub.n2  Formula (2),

wherein Q.sup.1, Q.sup.2, Q.sup.3, R.sup.f11, R.sup.f12, A.sup.1, n1, n2, m1, m2, and p are as described in the specification.