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Contamination Resistant Microsphere Products

A technology of microspheres and products, applied in the direction of coating, etc., can solve problems such as low friction coefficient

Active Publication Date: 2018-11-13
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, beaded films and low coefficient of friction decorative beaded films are known in the art, but have not been described heretofore, even at high temperature and high humidity for highly soiled materials such as yellow mustard, blood, wine, etc.) are stain resistant and also exhibit a low coefficient of friction, good abrasion resistance and sufficient hardness

Method used

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  • Contamination Resistant Microsphere Products
  • Contamination Resistant Microsphere Products
  • Contamination Resistant Microsphere Products

Examples

Experimental program
Comparison scheme
Effect test

example

[0161] Material

[0162]

[0163]

[0164]

[0165]

[0166]

[0167] testing method

[0168] Stain Resistance - Mustard

[0169] The free-standing bead films, and laminates and thermoformed laminates made therefrom, were marked and provided with a permanent marker on their back side (i.e., opposite the exposed bead surface) with a diameter of 5.08 cm (2 inches). circles. A piece of white coated paper was placed under the sample, and a Hunter Labs MiniScan EZ spectrophotometer (Model 4500L, Hunter Associates Laboratory, Incorporated, Reston, VA) was used to L*, a*, and b* are measured at the center of the circle from the front side of the film or laminate (ie, the surface with the beads exposed). Next, French 100% Natural Classic Yellow Mustard was applied and distributed evenly with a cotton swab on the front side of the film within the boundaries of the circle. The samples prepared in this way were placed in a heat and humidity chamber at a temperatu...

example 1A

[0189] Sealing of a solvent-based solution of brominated fluoropolymer FP 1, trifunctional acrylate TA 1 and photoinitiator PI in a weight ratio of 80:20:1 on a roll at room temperature (about 23°C (73°F)) Mix overnight in a jar to give a 35% solids solution (w / w) in MEK.

[0190] The resulting solution was applied at a rate of about 3.0 m / min (10 ft / min) to 30.5 cm (12 in) wide soda lime beads prepared as described above using a coating square with a gap of 0.15 mm (0.006 in). carrier. The binder resin-coated bead carrier was then dried in air at room temperature for one hour, and then at 70°C (158°F) for one hour before being exposed to light using a HP-6 UV lamp system (including VPS-3 Power supply, I-6B radiator, and conveyor belt) (obtained from Fusion UV Systems, Incorporated, Gaithersburg, MD, Gaithersburg, MD, set to 100% power) in air at high intensity D Bulb mercury lamp UV radiation and a line speed of 9.75 m / min (32 ft / min) for curing. The binder resin coated be...

example 1B

[0195] Example 1A was repeated with the following modifications. Coating squares with a gap of 0.38mm (0.015 inches) were used.

[0196] A transfer article having soda lime silicate beads partially embedded in polyethylene on one side and a coating of polyurethane resin on a fluoropolymer-acrylate binder resin layer is provided. Partially embedded in the fluoropolymer-acrylate adhesive resin layer on the other side.

[0197] By removing both the transfer carrier and the silicone-coated polyester film release liner, a 0.140 mm (0.0055 inch) thick free-standing bead film with a fluoropolymer-acrylate bond was obtained A layer of fluoropolymer-acrylate binder resin uniformly coated on one side with partially embedded soda lime silicate microspheres and on the other side with 100% Solid based two component polyurethane resin.

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Abstract

The present invention provides an article comprising at least a first surface having a layer of fluoropolymer binder resin and a plurality of microspheres partially embedded in the adhesive In and adhered to the first major surface of the binder resin layer; wherein the fluoropolymer is partially derived from at least one partially fluorinated or non-fluorinated monomer; and wherein the article exhibits stain resistance to yellow mustard at high temperature and humidity as measured by a b* change of less than 50. The invention also provides articles wherein said fluoropolymer is derived in part from at least one partially fluorinated or non-fluorinated monomer; and wherein along the polymer backbone of said fluoropolymer The fluorine content is about 27% to 72% by weight. The present invention also provides such an article, wherein the article is a thermoformable article exhibiting chemical resistance according to ASTM D5402-06.

Description

technical field [0001] The present disclosure relates to stain resistant articles coated with microspheres. Background technique [0002] Decorative protective surfaces find many consumer applications. Household appliances, automotive interiors and especially, consumer electronic devices such as laptops and handheld devices are all examples where consumers prefer materials that provide objective protection from contamination, scratches, wear and abrasion, while Maintains good looks and aesthetic appeal throughout the life of the material. Low-gloss matte surfaces are of particular interest to many consumers due to their aesthetic appeal. [0003] Durable decorative laminates and films composed of glass beads are well known. These low gloss constructions typically consist of exposed glass bead surfaces which impart high durability and decorative properties to the construction. The low friction properties of such constructions have also been disclosed. For example, US Pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/00
CPCC09D5/00C08K7/18C08K7/20C09D127/12C09D127/16C09D127/18C09D127/20
Inventor 克里斯托弗·B·小沃克约翰·C·克拉克福士达夫托马斯·P·克伦维韦克·克里希南亚历山大·J·库格尔刘兰虹马京晶史蒂文·J·麦克曼
Owner 3M INNOVATIVE PROPERTIES CO