Patent · US Expired

Pigment preparation for anti-corrosion coating material

US5735939A · kind A · utility

5Cited by

3References

17Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Ralf Glausch · Darmstadt, DE
Georg Reinhard · Dresden, DE
Renate Jircik · Dresden, DE
Ursula Rammelt · Dresden, DE

Key dates

Filing date	Mar 31, 1995
Grant date	Apr 7, 1998
Priority date	—
Expiry date	Mar 31, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31678
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A pigment preparation for anti-corrosion coating materials, comprising PA1 (i) 3-40% by weight of a monomeric or polymeric, metal-free or metal-containing chelate-forming compound, preferably a phthalocyanine, PA1 (ii) 3-40% by weight of a material in flake form, preferably mica, and PA1 (iii) 25-80% by weight of a hydroxide ion-binding material, preferably a metaphosphate, di- or triphosphate. In a further embodiment, the pigment preparation additionally contains 5-65% by weight of a conductive pigment.

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