This fiber-treating agent includes a nitrogen-atom-containing polysiloxane synthesizable from an inexpensive raw material and excelling in preservation stability that is represented by formula (1) and/or a reaction product of the nitrogen-atom-containing polysiloxane with an epoxy compound. This fiber-treating agent makes is possible to add good flexibility and highly durable water-absorbing properties to a fiber.

##STR00001##

(R.sup.2 is an unsubstituted or a halogen-substituted 1-20C univalent hydrocarbon group, R.sup.2 is a univalent organic group containing at least one nitrogen atom, R.sup.3 is R.sup.1 or an ethoxy group, at least one of which is an ethoxy group, R.sup.4 is a hydroxyl group or OSiR.sup.2R.sup.3R.sup.3, and a is an integer from 2 to 2,000.)

A silsesquioxane polymer, composition, method, and article including such polymer, wherein the polymer includes a three-dimensional network of Formula (I): wherein: each R.sup.1 and R.sup.2 is independently a (C1-C4)alkyl; each L.sup.1 and L.sup.2 is independently in a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, NH, and combinations thereof; each R.sup.3 is independently a linear (C14-C100)alkyl; each R.sup.4 is independently a (C1-C30)alkyl, (C2-C30)heteroalkyl having at least one oxygen, sulfur, or NH group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group; with the proviso that L.sup.1, L.sup.2, and R.sup.4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl; m is an integer of at least 2; n is an integer of 0 or above; m+n is an integer of at least 3; each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network; and the silsesquioxane polymer is a solid at 25 C.

##STR00001##

An oil agent for a carbon fiber precursor is provided that contains a base component, a cationic surfactant, and a nonionic surfactant, wherein the cationic surfactant is a specific nitrogen-containing compound.

An oil agent for a carbon fiber precursor is provided that contains a base component, a cationic surfactant, and a nonionic surfactant, wherein the cationic surfactant is a specific nitrogen-containing compound.

The general field of the invention is that of silicone coating compositions, in particular those of two-component or multi-component type, that can be crosslinked by polyaddition or hydrosilylation reactions to produce a support coated by a silicone elastomer as a thin layer. These silicone compositions, when they are crosslinked, are suitable, inter alia, as coatings, for example for the protection or mechanical reinforcement of various textile substrates such as for example fibrous, woven, knitted or nonwoven supports. The targeted objective is to provide a silicone elastomer coating composition that can be crosslinked by polyaddition reactions and that is useful in particular for applications in the field of inflatable safety bags for vehicles, or airbags, having, after crosslinking, optimum properties in terms of adhesion, thinness, lightness and crease and abrasion resistance, but also good mechanical properties. This silicone coating composition should also be easy to use and to apply.

The general field of the invention is that of silicone coating compositions, in particular those of two-component or multi-component type, that can be crosslinked by polyaddition or hydrosilylation reactions to produce a support coated by a silicone elastomer as a thin layer. These silicone compositions, when they are crosslinked, are suitable, inter alia, as coatings, for example for the protection or mechanical reinforcement of various textile substrates such as for example fibrous, woven, knitted or nonwoven supports. The targeted objective is to provide a silicone elastomer coating composition that can be crosslinked by polyaddition reactions and that is useful in particular for applications in the field of inflatable safety bags for vehicles, or airbags, having, after crosslinking, optimum properties in terms of adhesion, thinness, lightness and crease and abrasion resistance, but also good mechanical properties. This silicone coating composition should also be easy to use and to apply.

Disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of terpene resins and terpene resin derivatives. Also disclosed is an elastic fiber treatment agent that contains at least one smoothing agent selected from the group consisting of mineral oils, silicone oils, and ester oils and at least one naturally derived ingredient selected from the group consisting of rosins and rosin derivatives. In one aspect, the smoothing agent includes a mineral oil and the mineral oil content of the smoothing agent (A) is 59.5% to 95% by mass.

A fiber-treating agent including a condensate formed from the following components (A) and (B), and a component (C). A total content of a constituent element derived from the component (A) and a constituent element derived from the component (B) is more than 1 mass %, and a turbidity is 1,000 NTU or less: (A): formaldehyde or a hydrate thereof, (B): triazine or a derivative thereof of formula (1):

##STR00001## where R.sup.1 to R.sup.3 are the same or different, and each represent a hydrogen atom, a hydroxymethylamino group, an amino group, a hydroxy group, a halogen atom, a phenyl group, a linear or branched alkyl group or alkenyl group having 1 or more and 6 or less carbon atoms, or a linear or branched alkoxy group or alkenyloxy group having 1 or more and 6 or less carbon atoms, and (C): water.

A fiber-treating agent including a condensate formed from the following components (A) and (B), and a component (C). A total content of a constituent element derived from the component (A) and a constituent element derived from the component (B) is more than 1 mass %, and a turbidity is 1,000 NTU or less: (A): formaldehyde or a hydrate thereof, (B): triazine or a derivative thereof of formula (1):

##STR00001## where R.sup.1 to R.sup.3 are the same or different, and each represent a hydrogen atom, a hydroxymethylamino group, an amino group, a hydroxy group, a halogen atom, a phenyl group, a linear or branched alkyl group or alkenyl group having 1 or more and 6 or less carbon atoms, or a linear or branched alkoxy group or alkenyloxy group having 1 or more and 6 or less carbon atoms, and (C): water.

A fiber-treating agent including the following components (A) to (C) and having a turbidity of 1,000 NTU or less, where a part or all of the components (A) and (B) are optionally a condensate formed from the components: (A): formaldehyde or a hydrate thereof, (B): a phenolic compound having an electron donating group on at least one of meta-positions and a hydrogen atom on at least one of ortho-positions and a para-position, where the electron donating group on the meta-position optionally forms, together with adjacent carbon atoms, a benzene ring optionally substituted with a hydroxy group, and (C): water.