Low fume finish for wet air-jet texturing
AssigneeE. I. Du Pont de Nemours and Company
InventorFleming H. Day
Life of this patent
Estimating the term…
Abstract
A lubricating finish composition suitable for application as a water emulsion to synthetic filaments and synthetic filaments coated with the composition. The composition of the invention comprises: about 60 to about 98.9 weight percent nonionic emulsifier having a melting point less than about 25.degree. C.; about 1 to about 39.9 weight percent lubricant having at least 29 carbon atoms and a melting point less than about 25.degree. C.; and about 0.1 to about 15 weight percent anionic surfactant.
Claims15
A lubricating finish composition comprising:
- 65 to about 98.9 weight percent nonionic emulsifier selected from the class consisting of polyoxyalkylene condensation products having a lipophilic portion derived from an alcohol or a carboxylic acid, said emulsifier having a number average molecular weight of at least about 600 amu and a melting point less than about 25.degree. C.;
- about 1 to about 39.9 weight percent lubricant selected from the class consisting of natural and synthetic esters having a number average molecular weight of at least about 450 amu, said lubricant having at least 29 carbon atoms and a melting point less than 25.degree. C.;
- and
- 0.1 to about 15 weight percent anionic surfactant selected from the class consisting of alkali metal salts of a sulfonated dicarboxylic acid ester.
The finish composition of claim 9 wherein said anionic surfactant is selected from the class consisting of sodium di-2-ethylhexyl sulfosuccinate and potassium di-2-ethylhexyl sulfosuccinate.
A synthetic filament coated with a finish composition comprising:
- 65 to about 98.9 weight percent nonionic emulsifier selected from the class consisting of polyoxyalkylene condensation products having a lipophilic portion derived from an alcohol or a carboxylic acid, said emulsifier having a melting point less than about 25.degree. C.;
- about 1 to about 39.9 weight percent lubricant selected from the class consisting of natural and synthetic esters having a number average molecular weight of at least about 450 amu, said lubricant having at least 29 carbon atoms and a melting point less than 25.degree. C.;
- and
- 0.1 to about 15 weight percent anionic surfactant selected from the class consisting of alkali metal salts of a sulfonated dicarboxylic acid ester.
Dependencies are inferred from the claim text.