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Color tailorable pigmented optical bodies with surface metalization

An object, optical technology, applied in the direction of optics, optical components, organic dyes, etc., can solve the problems of optical characteristics such as optical characteristic color, transmittance, reflectivity and absorption rate limitation.

Inactive Publication Date: 2006-10-04
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional surface metallization techniques improve the environmental stability (i.e., color stability or fastness) of colored films, optical properties such as color, transmittance, reflectivity, and absorptivity are all affected by the optical properties of the specific metal and the metal Layer Thickness Limitations
Due to these limitations, its applications are limited depending on the type of metal used

Method used

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  • Color tailorable pigmented optical bodies with surface metalization
  • Color tailorable pigmented optical bodies with surface metalization
  • Color tailorable pigmented optical bodies with surface metalization

Examples

Experimental program
Comparison scheme
Effect test

example

[0081] Examples 1-30 below are based on optical objects constructed according to the different particle dispersion, masterbatch, polymer core and metal layer processes described below. The following tables list examples of polymer core and metal layer processes used to construct optical objects. The tables also list the following: the average transmittance of the polymer core, metal layer, and optical object; the average reflectance of the optical object; the haze of the optical object; a * and b * value. Figure 1-4 The transmission spectra of the metal layer, the polymer core layer and the optical object and the reflection spectrum of the optical object in Examples 3, 12, 16, and 21 are plotted in , respectively.

[0082] Particle Dispersion A

[0083] 91.5 wt% ethylene glycol and 3.5 wt% PVP (polyvinylpyrrolidone, specifically ISP PVP K15) were mixed in a 210 liter storage tank using a high speed, high shear Cowles "Dissolver" mixer with 25 cm diameter mixing blades Th...

example 1-12

[0116] Examples 1-12 in Tables 1A and 1B were fabricated according to Polymer Core Process A1 or Polymer Core Process A2.

[0117] example

[0118] example

example 13-18

[0120] Examples 13-18 in Tables 2A and 2B were made according to Polymer Core Process B.

[0121] example

[0122] example

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Abstract

A color-tailorable, surface-metalized, pigmented optical body comprising a single or multiple layer polymeric core comprising at least one layer of a thermoplastic polymer material having dispersed therein a particulate pigment, and a metallic layer located on at least one outer surface of the polymeric core. The optical bodies are generally constructed such that the at least one of the L*, a*, and b* color scales of the polymeric core differs from the L*, a*, and b* color scales of the metallic layer.

Description

field of invention [0001] The present invention relates to color-tunable polymeric optical objects and products made therefrom. More specifically, the present invention relates to color-tunable colored polymeric optical objects made from surface metallized polyesters. Background of the invention [0002] Colored polymer films, especially those made of polyester, have a wide range of applications. These films can be used, for example, to base transparent substrates such as windows or automotive glazing to impart a neutral (gray) or tinted color to the window or automotive glazing. They can also be used to color the surfaces of displays, mirrors or other optical devices. [0003] One method of coloring a polymeric substrate film is to dye the substrate film with one or more colored dyes. Typically in this approach, neutral or colored colors are achieved by dipping (or mixing) a combination of yellow, red and blue dyes in the base film material. While these dyed films gener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/04G02B5/22C09B67/20G02B1/10
CPCY10T428/31681Y10T428/265Y10T428/266Y10T428/256G02B5/205G02B5/223Y10T428/25G02B1/04
Inventor 丹尼尔·J·麦古恩劳伦斯·R·吉尔伯特布赖恩·L·克莱恩哈默詹姆斯·A·奥尔森
Owner 3M INNOVATIVE PROPERTIES CO