US Patent No: 4,797,308

Number of patents in Portfolio can not be more than 2000

Simulated mother-of-pearl

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Importance

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Abstract

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An iridescent lustrous composite which can simulate the appearance of mother-of-pearl comprises a substrate comprising a transparent or translucent plastic which has been pigmented with a metal oxide coated mica pigment and the substrate carries on at least one of its surfaces a transparent thermoplastic resinous laminate film of at least ten very thin and generally parallel layers of transparent thermoplastic resinous materials, the contiguous layers differing in refractive index by at least about 0.03 and in which the layer at each external surface of the laminate film has a thickness which is greater than the thickness of any one of the multiple very thin layers.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ENGELHARD CORPORATIONISELIN, NJ788

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mattin, Harry E Briarcliff Manor, NY 1 30

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MERCK PATENT GMBH (2)
4,205,997 Powdery pearlescent pigment compositions 19 1978
4,720,438 Molded clay article coated with pearl pigment 8 1986
 
BASF CORPORATION (1)
4,499,143 Multilayer automative paint system 41 1983
 
Druckerei Gorius (1)
4,457,540 Multicolor printed product containing pearl luster pigment 10 1981
 
ENGELHARD CORPORATION (1)
4,309,480 Iron blue nacreous pigments 19 1980
 
MEARL CORPORATION, A CORPORATION OF NEW JERSEY (1)
RE31780 Multilayer light-reflecting film 52 1983

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (19)
5,882,774 Optical film 469 1995
6,565,982 Transparent multilayer device 20 1996
6,010,751 Method for forming a multicolor interference coating 86 1997
6,012,820 Lighted hand-holdable novelty article 27 1998
6,185,039 Infrared selective reflective polarizing element 14 1999
6,264,747 Apparatus for forming multicolor interference coating 23 1999
6,543,153 Reflective polarizer having improved properties and optical display with improved reflective polarizer 17 1999
6,804,058 Electroluminescent light source and display incorporating same 13 2000
6,641,883 High efficiency optical devices 3 2001
6,613,421 Optical film 16 2001
6,641,280 Hand-holdable toy light tube 13 2001
7,038,745 Brightness enhancing reflective polarizer 25 2003
7,083,847 Optical film 4 2003
7,321,464 Electroluminescent light source and display incorporating same 8 2004
7,147,903 High efficiency optical devices 3 2005
7,423,708 Display having a reflective polarizer 2 2005
7,297,393 Optical film 2 2006
7,833,593 High efficiency optical devices 1 2007
7,852,560 Display incorporating reflective polarizer 2 2008
 
AZOTIC COATING TECHNOLOGY, INC. (2)
7,137,275 Coatings for gemstones and other decorative objects 3 2005
7,526,928 Multi-color gemstones and gemstone coating deposition technology 1 2005
 
Minnesota Mining and Manufacturing Company (2)
5,976,424 Method for making multilayer optical films having thin optical layers 59 1997
6,082,876 Hand-holdable toy light tube with color changing film 33 1998
 
Phillips Petroleum Company (2)
4,946,641 Process of making a gold-colored olefin product 5 1988
5,035,932 Gold colored polyolefin containers 4 1990
 
ASAHI GLASS COMPANY, LIMITED (1)
8,129,022 Fluororesin film and process for its production 0 2009
 
MW CUSTOM PAPERS, LLC (1)
4,888,220 Decorative laminates having 3-dimensional effect 10 1988
 
NOVOZYMES BIOTECH, INC. (1)
6,924,014 High efficiency optical devices 14 2003
 
RMS PACKAGING, INC. (1)
5,837,359 Satin and tinted satin iridescent films 6 1996
 
TORAY INDUSTRIES, INC. (1)
7,790,272 Multilayer film and biaxially oriented polyester film 2 2004