Finish for textile fibers containing silahydrocarbon lubricants and nonionic emulsifiers having a plurality of hydrocarbon chains
AssigneeMilliken Research Corporation
InventorsRandy D. Petrea, Robert L. Schuette
Life of this patent
Estimating the term…
Abstract
A fiber finish composition, which may be applied as an aqueous emulsion, is provided having: (a) from 50 to 95 parts by weight of a silahydrocarbon lubricant; (b) from 5 to 50 parts by weight of an emulsifier selected from: (i) ethoxylated C.sub.12 -C.sub.36 branched alcohols; (ii) alkoxylated polyhydric alcohols having at least 3 hydroxyl sites which are esterified with C.sub.12 -C.sub.36 fatty acids; (iii) alkoxylated glycerol esters of C.sub.12 -C.sub.36 fatty acids having at least one hydroxyl functionality; (c) up to 10 parts by weight of an ionic emulsifier; and (d) up to 5 parts by weight of an antisling additive.
Claims20
A fiber finish composition comprising on a neat basis:
- (a) from 10 to 95 parts by weight of a silahydrocarbon selected from compounds having the formula:
- Si R.sub.1 R.sub.2 R.sub.3 R.sub.4
- and R.sub.1 R.sub.2 R.sub.3 Si--(CH.sub.2).sub.n --Si--R.sub.1 R.sub.2 R.sub.3 wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from alkyl, aryl, or aralky, alkaryl and cycloalkyl;
- and n is an integer from 2 to 8, provided that said silahydrocarbon has at least 24 carbon atoms and is liquid at ambient temperature;
- (b) from 5 to 90 parts by weight of an emulsifier selected from:
- (i) branched alcohols having at least two aliphatic chains of C.sub.4 -C.sub.32 and from 12 to 36 total carbon atoms, which have been alkoxylated with from 3 to 30 moles of alkylene oxides selected from ethylene oxide, propylene oxide and glycidol;
- and
- (ii) C.sub.3 -C.sub.90 polyhydric alcohols having at least three hydroxyl sites, which have been alkoxylated with from 5 to 200 moles of alkylene oxides selected from ethylene oxide, propylene oxide, butylene oxide and glycidol, provided that if any of said hydroxyl sites are primary alcohols, then said primary alcohols are reacted with a secondary hydroxyl forming alkylene oxide prior to alkoxylation, followed by esterification in an acidic medium with 1 to 6 moles of a C.sub.12 -C.sub.36 fatty acid.
A fiber finish composition comprising on a neat basis:
- (a) from 50 to 95 parts by weight of a silahydrocarbon having the formula:
- Si R.sub.1 R.sub.2 R.sub.3 R.sub.4
- wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently selected from alkyl, aryl, aralkyl, alkaryl and cycloalkyl;
- provided that said silahydrocarbon has at least 24 carbon atoms and is liquid at ambient temperature;
- (b) from 5 to 50 parts by weight of an emulsifier selected from:
- (i) branched alcohols having at least two alkyl chains of C.sub.6 -C.sub.24 and from 12 to 28 total carbon atoms, which have been alkoxylated with from 3 to 12 moles of alkylene oxides selected from ethylene oxide and propylene oxide;
- and
- (ii) C.sub.3 -C.sub.6 polyhydric alcohols having at least three hydroxyl sites, which have been alkoxylated with from 5 to 40 moles of alkylene oxides selected from ethylene oxide and propylene oxide, followed by esterification in an acidic medium with 3 to 6 moles of a C.sub.12 -C.sub.28 branched, fatty acid.
An aqueous emulsion comprising from 3 to 25 wt. % of a finish composition having:
- (a) from 50 to 95 parts by weight of a silahydrocarbon having the formula:
- Si R.sub.1 R.sub.2 R.sub.3 R.sub.4
- wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are alkyl;
- provided that said silahydrocarbon has at least 24 carbon atoms and is liquid at ambient temperature;
- (b) from 5 to 50 parts by weight of an emulsifier selected from:
- (i) branched alcohols having at least two alkyl chains of C.sub.6 -C.sub.24 and from 12 to 28 total carbon atoms, which have been alkoxylated with from 3 to 12 moles of alkylene oxides selected from ethylene oxide and propylene oxide;
- and
- (ii) C.sub.3 -C.sub.6 polyhydric alcohols having at least three hydroxyl sites, which have been alkoxylated with from 5 to 40 moles of alkylene oxides selected from ethylene oxide and propylene oxide, followed by esterification in an acidic medium with 3 to 6 moles of a C.sub.12 -C.sub.28 fatty acid.
Dependencies are inferred from the claim text.