Patent · US Expired

Colourant-loaded molecular sieve

US5968242A · kind A · utility

4Cited by

0References

10Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Wolfgang Holderich · Bischofswerda, DE
Nadja Rohrlich · Aachen, DE
Laurent Chassot · Praroman, CH

Key dates

Filing date	Dec 19, 1997
Grant date	Oct 19, 1999
Priority date	—
Expiry date	Dec 19, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01P2006/16
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A molecular sieve, which contains in all, or only in some, of its cavities colorant molecules as well as a modifier which is covalently bound to said molecular sieve and which reduces its pore diameter, a process for its preparation as well as its use as pigment for coloring high molecular weight organic materials, preferably biopolymers and plastic materials, glasses, ceramic products, for formulations of decorative cosmetics, for the preparation of paint systems, preferably automotive lacquers, printing inks, dispersion paints and color filters as well as materials comprising the novel molecular sieves.

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