The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 1996
Filed:
Oct. 20, 1992
George D Vaughn, Chesterfield, MO (US);
Charles R Graham, St. Peters, MO (US);
Monsanto Company, St. Louis, MO (US);
Abstract
Composite mirrors on a substrate comprising a mixture of up to 20 percent of polymer and at least 80 percent of metal clusters, e.g. of gold, palladium or silver, which have a nominal diameter less than 100 nanometers and which are agglomerated in a layer conforming to the surface of the substrate. Composite mirrors are produced by coating a substrate with a solution comprising at least 80 percent solvent, e.g. water and alcohol, and up to 20 percent of a mixture of up to 20 percent polymer, e.g. methylcellulose, and at least 80 percent metal, present as a salt of volatiles-forming anion, e.g. silver lactate or palladium acetate; dry films of polymer and salt are exposed to heat or ultraviolet light to convert the salt to metal clusters. Polymeric mirrors are especially useful for making reflection holograms on polymeric surfaces embossed with a latent holographic image in a relief pattern.