Ppg Industries Ohio, Inc.

Acushnet Company

Mark D Merritt

Calum Hugh Munro

Noel Rawle Vanier

Paul H Lamers

Eldon L Decker

Sean Purdy

Colin W Veitch

Rachel B Wilson

Kieran F Andre

A method of marking an article with a watermark that diffracts radiation according to Bragg's law is disclosed. The watermark includes a periodic array of particles fixed in a matrix. The watermark may change colors with viewing angle, disappear and reappear with viewing angle or may diffract non-visible radiation that is detectable at certain angles of detection.

Bragg diffracting security markers

A method of controlling radiation reflected from a surface comprising: applying a composite material to a surface, where the composite material comprises an ordered periodic array of particles held in a polymeric matrix material; exposing the surface bearing the composite material to radiation; and reflecting invisible radiation from the composite material on the surface.

Radiation diffraction material for reflecting invisible radiation

A radiation diffraction material comprising an ordered periodic array of particles held in a polymeric matrix is disclosed; the particles each comprise a core surrounded by a shell of a non-film forming composition that is different from the matrix. Methods for using the material are also disclosed.

Radiation diffraction colorants

The present invention is directed to golf equipment packages using a coating that gives a color traveling effect. The color traveling coating can be applied to golf equipments such as golf balls, golf gloves and golf clubs, and to golf equipment display. In addition, because the coating reflects ultraviolet light, it can be coated on golf balls and golf clubs to prevent discoloration under ultraviolet light.

Golf products and packaging for golf products with color traveling coating

A protective and decorative coating composition including semiconductor particulate colorants which in combination with a resinous composition produce a desired color. The colorants are semiconductor particles which exhibit sized-quantized absorption of visible light and have a particle size of up to about 12 nm.

Coating compositions containing semiconductor colorants

A coating composition comprising a resinous binder and a color effect colorant in particulate form. The colorant includes an ordered periodic array of particles held in a polymer wherein a difference in refractive index between the polymer and the particles is at least about 0.01. The colorant reflects visible light according to Bragg's law to yield a goniochromatic effect to the coating composition.

Growing community of inventors

State College, PA, United States of America

Mark D Merritt