초록 ▼

A polyester size composition for synthetic fibers useful in protecting the fibers from abrasion during the weaving process or to improve the adhesion to the fibers of conventional size compositions and especially useful with polyester fibers such as those based upon polyethylene terephthalate, compr

A polyester size composition for synthetic fibers useful in protecting the fibers from abrasion during the weaving process or to improve the adhesion to the fibers of conventional size compositions and especially useful with polyester fibers such as those based upon polyethylene terephthalate, comprises a branched water-dispersible polyester which is the reaction product of at least one polycarboxylic acid, at least one diol or polyglycol and an aromatic carboxylic acid containing a －SO3M grouping which is attached to the aromatic nucleus of said carboxylic acid through an aliphatic chain and ester linkage and wherein said linkage contains about 2 to about 8 carbon atoms.

대표청구항 ▼

A branched water-dispersible polyester containing repeating carbonyl-oxy units wherein said units are an integral part of the polymer chain, said polyester comprising the reaction products of a diol or polyglycol, a polycarboxylic acid and an organic reactant containing an alkali metal salt of a sul

A branched water-dispersible polyester containing repeating carbonyl-oxy units wherein said units are an integral part of the polymer chain, said polyester comprising the reaction products of a diol or polyglycol, a polycarboxylic acid and an organic reactant containing an alkali metal salt of a sulfonic acid attached to an aromatic nucleus through an aliphatic or cycloaliphatic chain and ester linkage which is capable of rendering said polyester water-dispersible and which is present in the proportions of from about 5 mole percent to about 50 mole percent, based upon the sum of the theoretical mole percentages of the other carboxylic acid components of said polyester, wherein said organic reactant consists of the at least monofunctional reaction product of an aromatic polycarboxylic acid anhydride and an aliphatic or cycloaliphatic hydrocarbon hydroxysulfonic acid alkali metal salt.