Daniel S Fuller

US Patent:

6440208, Aug 27, 2002

Filed:

Nov 6, 2000

Appl. No.:

09/707229

Inventors:

James D. Christie - Yonkers NY
Daniel S. Fuller - Beacon NY
Curtis J. Zimmermann - Cold Spring NY

Assignee:

Engelhard Corporation - NJ

International Classification:

C09C 100

US Classification:

106415, 106403, 106404, 106417, 106419, 106431, 106440, 106461, 106480, 106481, 106482

Abstract:

A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with copper, zinc, an alloy of copper, or an alloy of zinc first layer which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.

US Patent:

63258471, Dec 4, 2001

Filed:

Nov 30, 1999

Appl. No.:

9/451604

Inventors:

James Douglas Christie - Yonkers NY
Daniel Stevenson Fuller - Beacon NY
William Joseph Sullivan - Ossining NY
Curtis James Zimmermann - Cold Spring NY

Assignee:

Engelhard Corporation - Iselin NJ

International Classification:

C09C 100
C09C 104
C09C 124
C09C 128
C09C 166

US Classification:

106417

Abstract:

A precious metal color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer selected from the group consisting of silver, gold, platinum, palladium, rhodium, ruthenium, osmium, iridium and the alloys thereof, which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.