Toyo Boseki Kabushiki Kaisha

Yoshikazu Arimatsu

Hideyuki Mitamura

Hajime Suzuki

Katsuya Tani

Kenichi Katsuo

Shuji Chiba

Takehiko Shimizu

Minoru Saitoh

Yoshinori Ido

Youichi Watanabe

Minoru Saito

Atsushi Kaji

Noriomi Yamane

Katsya Tani

Kamatani Hiroyoshi

A novel mildew resistant polymerizable compound of the formula: ##STR1## wherein X is --0-- or --S--; and Y is a residue of a known mildew proofing compound, preferably, a residue of a compound selected from the group consisting of phenol substituted with 1 to 5 halogen atoms, p-chloro-m-cresol, o-phenylphenol, p-chloro-m-xylenol, salicylanilide, 8-hydroxyquinoline, 2-(4'-thiazolyl)benzimidazole, 2,5-dibromo-4-methylaniline, 1,2-benzoisothiazolin-3-one and 2-pyridinethiol-1-oxide. A polymer of the compound [I] and polyurethane composition containing the polymer are also disclosed.

Polymerizable compound having mildew resistance and polymer thereof

A dyed union knit fabric comprised of at least a polyurethane elastic fiber containing a chlorine-induced degradation inhibitor in a proportion of 0.5-4.5 weight % relative to the weight of the fiber, and a polyamide fiber and/or a cation dyeable polyester fiber, which has been dyed with mixed dyes of acid dyes, dispersion dyes, metal-complex dyes, reactive dyes and direct dyes, and markedly improved in resistance to chlorine-induced change in shade by allowing to contain at least one compound having a reaction amount of chlorine of 50 milliequivalent per gram or more, specifically one member of mono- and/or polyhydroxybenzene derivatives in a proportion of 0.1-20% relative to the weight of the fiber; and a method for manufacturing same. According to the present invention, excellent resistance to chlorine-induced change in shade as well as chlorine-induced degradation can be afforded to the dyed union knit fabric.

Dyed union knit fabric and method for its manufacture

A dyed union knit fabric comprised of at least a polyurethane elastic fiber containing a chlorine-induced degradation inhibitor in a proportion of 0.5-4.5 weight % relative to the weight of the fiber, and a polyamide fiber and/or a cation dyeable polyester fiber, which has been dyed with mixed dyes of acid dyes, dispersion dyes, metal-complex dyes, reactive dyes and direct dyes, and markedly improved in resistance to chlorine-induced change in shade by allowing to contain at least one compound having a reaction amount of chlorine of 50 milliequivalent per gram or more, specifically one member of mono- and/or polyhydroxybenzene derivatives in a proportion of 0.1-20 % relative to the weight of the fiber; and a method for manufacturing same. According to the present invention, excellent resistance to chlorine-induced change in shade as well as chlorine-induced degradation can be afforded to the dyed union knit fabric.

A dope for forming elastic polyurethane articles is prepared by using a polyol, a diisocyanate and a diamine. A solvent and a terminating agent comprising a secondary monoamine and a ketoimineamine and/or an aldoimine-amine may also be employed.

Dope for forming elastic polyurethane articles and process for producing

A process for the production of polyester polyurethane elastomeric fibers having improved humid aging resistance which comprises the steps of reacting a polyester diol with an excess molar amount of an organic diisocyanate to prepare a urethane prepolymer having terminal isocyanate group at both ends thereof; extending the chain of the prepolymer with a bifunctional active hydrogen compound and 0.5 to 10.0 mole % of a diaminosilyl compound based on the total amount of the bifunctional active hydrogen compound during or after preparation of the prepolymer to obtain a polyurethane; spinning the polyurethane into fiber; and crosslinking the polyurethane during or after spinning.

Process for production of polyester polyurethane elastomeric fibers

A novel mildew resistant polymerizable compound of the formula: ##STR1## wherein X is --O-- or --S--; and Y is a residue of a known mildew proofing compound, preferably, a residue of a compound selected from the group consisting of phenol substituted with 1 to 5 halogen atoms, p-chloro-m-cresol, o-phenylphenol, p-chloro-m-xylenol, salicylanilide, 8-hydroxyquinoline, 2-(4'-thiazolyl)benzimidazole, 2,5-dibromo-4-methylaniline, 1,2-benzoisothiazolin-3-one and 2-pyridinethiol-1-oxide. A polymer of the compound [I] and a polyurethane composition containing the polymer are also disclosed.

Novel polymerizable compound having mildew resistance and polymer thereof

A polymeric antioxidant which comprises a monomeric unit having a formula (I): ##STR1## wherein R.sub.1 is methyl or ethyl; and a monomeric unit having a formula (II): ##STR2## which imparts an excellent resistance against heat- or light-aging to a synthetic fiber and a resin.

Polymeric antioxidant and process for production thereof

A tertiary nitrogen atom-containing urethane polymer which comprises units of the following formulas (I) and (II) as the essential components and units of the following formulas (III), (IV) and (V) as the optional components, the content of the unit of the formula (I) being not less than 10 milliequivalents in terms of the tertiary nitrogen atom per kilogram of the urethane polymer, and has a molecular weight of not less than 500: ##STR1## wherein R.sub.1 and R.sub.2 are each a C.sub.1 -C.sub.4 alkyl group and, when taken together with the adjacent nitrogen atom to which they are attached, represent a nitrogen-containing heterocyclic group, R.sub.3 is a C.sub.1 -C.sub.4 alkyl group, R.sub.4 is an optionally branched C.sub.1 -C.sub.8 alkylene group, m is a positive integer and n is zero or a positive integer but m+n is a number which can provide the unit of the formula (I) with a molecular weight of 131 to 6998 and the bondings in the unit of the formula (I) may be in random and/or block, R.sub.5 is a residue of an organic diisocyanate, R.sub.6 is an optionally branched C.sub.1 -C.sub.8 alkylene group, an aromatic group optionally substituted with one or more C.sub.1 -C.sub.4 alkyl groups and/or one or more halogen atoms or a residue of a polyetherdiol thereof, R.sub.7 is a residue of a dicarboxylic acid and R.sub.8 is a residue of a diamine or a residue of a hydrazine, which is effective in improvement of resistance to color change due to gas.

Urethane polymers containing a tertiary nitrogen atom, and their

A polyurethane composition improved in dyeing property which comprises (A) a polyurethane and (B) a tertiary nitrogen atom-containing polymer incorporated therein in an amount sufficient to stabilize the polyurethane (A), said polymer (B) being the reaction product between (C) a tertiary nitrogen atom-containing diol and an excessive amount of (D) an organic diisocyanate, the terminal isocyanate group in said reaction product being blocked with a monoamine and/or a dialkylhydrazine.

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Otsu, Japan

Yoshikazu Arimatsu