G02B5/128

STAIN RESISTANT RETROREFLECTIVE ARTICLES

Retroreflective article and precursor articles formed during the preparation of the retroreflective articles are provided. Also, methods of making both the precursor articles and the retroreflective articles are provided. The retroreflective articles and the precursor articles contain a reflective layer that includes both a reflective metal and a polymeric blend. The polymeric blend includes both a fluorinated polymer and a (meth)acrylate polymer. The retroreflective articles typically have anti-staining properties, anti-corrosion properties, or both.

Retroreflective Sheeting and Vehicle License Plate
20170329061 · 2017-11-16 ·

A retroreflective sheeting, comprising a surface protective layer; the surface protective layer comprises at least one acrylic polymer; the glass-transition temperature (Tg) of the product generated from the reaction of the acrylic polymer is 10° C.-35° C. and the coagulation ratio is 0%-95%; such retroreflective sheeting has favorable weatherability, low-temperature embossing resistance and adhesion resistance; it also discloses a vehicle license plate adopting the retroreflective sheeting.

RETROREFLECTIVE ARTICLES CONTAINING ADHESIVE COMPOSITIONS INCLUDING STYRENIC BLOCK CO-POLYMERS

There is provided retroreflective articles comprising a binder layer comprising an adhesive composition comprising at least one tackifier and at least one elastomer selected from at least one of natural rubbers and synthetic rubbers, and a layer of optical elements at least partially embedded in a major surface of the binder layer. There are also provided articles of clothing using the presently disclosed retroreflective articles and methods for preparing the retroreflective articles.

RETROREFLECTIVE ARTICLES CONTAINING ADHESIVE COMPOSITIONS INCLUDING STYRENIC BLOCK CO-POLYMERS

There is provided retroreflective articles comprising a binder layer comprising an adhesive composition comprising at least one tackifier and at least one elastomer selected from at least one of natural rubbers and synthetic rubbers, and a layer of optical elements at least partially embedded in a major surface of the binder layer. There are also provided articles of clothing using the presently disclosed retroreflective articles and methods for preparing the retroreflective articles.

Thermoformable three dimensional retroreflective article and method of manufacture
09821531 · 2017-11-21 · ·

A three dimensional retroreflective article having an outer surface with a reflectivity of at least about 200 lux, and method for making such an article from a thermoformable laminate is provided. The laminate includes a base layer of thermoformable plastic sheet material; and a layer of microbeads configured in a high-density arrangement and silvered on their bottom sides to enhance retroreflectivity. The microbeads are adhered to an outer surface of the base layer by a thermoformable cushion coat which may include a phosphorescent pigment to further enhance reflectivity. A protective sheet of transparent thermoformable sheet material overlies and may be in contact with the layer of microbeads. The laminate is heated and thermoformed into a self supporting three dimensional article having a pre-selected shape and an encapsulated bead retroreflective surface having a reflectivity of at least about 200 lux. The thermoforming step imparts sufficient non-planarity in the resulting retroreflective surface so that retroreflective dead spots created by contact between the microbeads and the protective sheet of transparent sheet material are effectively optically cancelled by overlapping zones of retroreflectivity generated by the microbeads.

Thermoformable three dimensional retroreflective article and method of manufacture
09821531 · 2017-11-21 · ·

A three dimensional retroreflective article having an outer surface with a reflectivity of at least about 200 lux, and method for making such an article from a thermoformable laminate is provided. The laminate includes a base layer of thermoformable plastic sheet material; and a layer of microbeads configured in a high-density arrangement and silvered on their bottom sides to enhance retroreflectivity. The microbeads are adhered to an outer surface of the base layer by a thermoformable cushion coat which may include a phosphorescent pigment to further enhance reflectivity. A protective sheet of transparent thermoformable sheet material overlies and may be in contact with the layer of microbeads. The laminate is heated and thermoformed into a self supporting three dimensional article having a pre-selected shape and an encapsulated bead retroreflective surface having a reflectivity of at least about 200 lux. The thermoforming step imparts sufficient non-planarity in the resulting retroreflective surface so that retroreflective dead spots created by contact between the microbeads and the protective sheet of transparent sheet material are effectively optically cancelled by overlapping zones of retroreflectivity generated by the microbeads.

Display apparatus

A display apparatus includes a screen formed in an arcuate shape centering on a center axis and a projection device configured to project, along projecting directions orthogonal to the center axis and different from one another, images corresponding to the projecting directions on the inner circumferential surface or the outer circumferential surface of the screen. The screen includes a retroreflective layer having a reflection surface directed to the projection device and a diffusion layer arranged on the projection device side with respect to the retroreflective layer and configured to diffuse, when transmitting light made incident from the retroreflective layer, the light wider in a first direction along the center axis than in a second direction, which is a circumferential direction centering on the center axis.

Laser Printing Apparatus and Method for Colour Dynamic Image
20170291441 · 2017-10-12 ·

A laser printing apparatus and method for a color dynamic image are provided. The laser printing apparatus includes an optical system and a recording material; the recording material includes a refraction layer formed by multiple microspheres or microlenses, and a shading layer formed on a focal plane of the multiple microshperes or microlenses; the optical system includes a laser and an graph generator, a laser light emitted by the laser irradiates onto the recording material after being processed by the image generator, the laser light irradiating onto the recording material is focused on the shading layer via the refraction layer, and a focus point is formed on the shading layer when energy of the focused laser light is greater than an evaporation threshold value of the shading layer.

Retroreflective Colored Articles

Provided herein are retroreflective colored article having a predetermined pattern of beaded and unbeaded regions and at least one polymeric color layer (130) covering at least a portion of the beaded and unbeaded regions, a reflector layer (140) covering the colour layer, and a carrier (150). Also disclosed are methods for making the articles.

Retroreflective Colored Articles

Provided herein are retroreflective colored article having a predetermined pattern of beaded and unbeaded regions and at least one polymeric color layer (130) covering at least a portion of the beaded and unbeaded regions, a reflector layer (140) covering the colour layer, and a carrier (150). Also disclosed are methods for making the articles.