Welcome Guest to Coatings World    Login || Register
Last Updated Sunday, October 26 2014
Print

ENGELHARD PATENTS



Published September 19, 2005
ENGELHARD PATENTS
MULTI-LAYER EFFECT PIGMENT
Patent No. U.S. 6,875,264 B2
Engelhard Corp. has received a
patent for a multilayer effect pigment
comprising a transparent substrate
having a layer of a transparent high
refractive index material, at least one
pair of transparent layers, one of
which is a high refractive index material
and the other of which is a low
refractive index material, wherein the
total number of layers is an odd number,
each layer differs in refractive
index from any adjacent layer by at
least approximately 0.2 and wherein
at least one layer has an optical thickness
which is different from all of the
other layers, whereby the pigment is
not a quarter-wave stack.


blog comments powered by Disqus
Receive free Coatings World emails
Sign up now to receive the weekly newsletter, and more!

Enter your email address:
Company Spotlight
Shamrock Technologies, Inc.
Foot of Pacific Street
Newark, NJ, 07114
USA
View Profile
BASF Corporation
100 Campus Drive
Florham Park, NJ, 07932
US
View Profile
AZ Electronic Materials Co., Ltd.
No. 458-6, Sinsing Road Hu Kou Township Hsinchu Country 303, Taiwan
Hsinchu Country, Taiwan, 303
Taiwan
View Profile
Keeneyes
18F, No.85, Sec. 1, Chung-Shiao E. Rd.
Taipei, Taiwan, 100
R.O.C.
View Profile
Siltech Corporation
225 Wicksteed Avenue
Toronto, ON, M4H 1G5
Canada
View Profile
Sunin Machine Co., Ltd.
No.96, Chiao Ho Rd ,Chungho Dist
New Taipei City, Taiwan , 235
Taiwan Roc
View Profile
Lubrizol Advanced Materials, Inc.
9911 Brecksville Road
Cleveland, OH, 44141
US
View Profile
Houchi Chemical Co., Ltd
No.56, Fu Chow Street
Taipei, Taipei, 100
Taiwan
View Profile
Micro Powders, Inc.
580 White Plains Rd.
Tarrytown, NY, 10591
US
View Profile
Follow Coatings World On