Patent · US Expired

Pourable nacreous lustre concentrate

US6147124A · kind A · utility

13Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 16, 1998
Grant dateNov 14, 2000
Priority date
Expiry dateApr 16, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S516/90
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

A free-flowing pearlescer concentrate is presented which is composed of: (a) 5 to 50% by weight of a pearlescing component which is (1) a compound of formula R.sup.3 --(OC.sub.n H.sub.2n).sub.x --OR.sup.4 where R.sup.3 is a fatty acyl group having 14 to 22 carbon atoms, R.sup.4 is hydrogen or linear fatty acyl group having 14 to 22 carbon atoms, n is 2 or 3, and x is 1; (2) a compound of formula R.sub.5 --CO--NH--X, where R.sup.5 is an alkyl group having 8 to 22 carbon atoms and X is selected from the group --CH.sub.2 --CH.sub.2 --OH, --CH.sub.2 --CH.sub.2 --CH.sub.2 --OH, and --C(CH.sub.3).sub.2 --OH; and a linear saturated fatty acid having 12 to 14 carbon atoms; (b) 5 to 55% by weight of a fatty acid-N-alkyl polyhydroxyalkylamide nonionic emulsifier of the formula ##STR1## as the sole emulsifier, where R.sup.1 --CO is an aliphatic acyl group having 6 to 22 carbon atoms, R.sup.2 is an alkyl or hydroxyalkyl group having 1 to 4 carbon atoms, and R.sup.z is a linear or branched polyhydroxyalkyl radical having 3 to 12 carbon atoms and 3 to 10 hydroxyl groups, and (c) 0.1% to 40% by weight of a low molecular weight polyhydric alcohol. The concentrate exhibits brilliant pearlescence an…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.