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Low ghosting dry erase article and use thereof

A product, dry-erase technology, used in reusable writing boards, printing and other directions, can solve the problem of difficult to erase, and achieve good drag resistance, good writeability, and excellent mechanical durability. and anti-aging effect

Inactive Publication Date: 2012-12-05
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if left on the board for days or weeks, the writing will become increasingly difficult to erase with an eraser

Method used

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  • Low ghosting dry erase article and use thereof
  • Low ghosting dry erase article and use thereof
  • Low ghosting dry erase article and use thereof

Examples

Experimental program
Comparison scheme
Effect test

example

[0085] The invention is further explained below with illustrative non-limiting examples.

[0086] experiment method

[0087] Use the following test method.

[0088] Marker dehumidification : Mark the dry erase surface with 14 different markers including 7 dry erase marker brands. These dry erase markers are: AVERY TM MARKS-A-LOT TM (Avery-Dennison, Pasadena, Cal.), BEIFA TM Private label markers (Beifa, Tokyo, Japan), BICTM dry erase markers (BIC Corporation, Milford, Conn., Connecticut), DIXON TM Dry erase markers (Dixon Ticonderoga Co., Heathrow, Fla., Heathrow, Fla.), EXPO TM Bold (Sanford Corp., Bellwood, IL), EXPO TM Low Odor (Sanford Corp.) and QUARTET TM Marker (Acco, Inc, Lincolnshire, IL), Lincolnshire, Illinois. All markers have chisel-shaped sharp points. Choose two color markers from each brand, one is black and the other is red, green or blue. A typical dry erase sample is about the size of a sheet of paper. For each marker brand, reserve a horizontal space ...

example 1

[0104] Example 1-906 hard coating with 0.075% HFPO-UA : The synthesis of HFPO-UA is described in US Patent No. 7,173,778. Dilute HFPO-UA to 25% solids in MEK. A solution of HFPO-UA in MEK was added to the solution of the 906 hard coating to produce a final concentration of 0.075% HFPO-UA solids based on the solids of the 906 hard coating. The solution was then diluted to 25% solids with ethyl acetate. The formulation was coated on a 9in (23cm) wide continuous coater, which included stations for coating, drying, UV curing and coating film winding. The coating formulation was applied to a 3 mil (76 microns) thick white polyester film through a coating die. After coating, the film was passed through a 30ft (9.1m) long blast oven and dried at 130°F (54°C). Then let the film pass through a nitrogen-purged UV curing chamber with H+ bulbs in the curing chamber. The oxygen concentration in the curing chamber is less than 100 ppm. The line speed on the coater was 50 feet per minut...

example 2

[0105] Example 2-With 10% MeFBSEA(C 4 F 9 SO 2 NMeC 2 H 4 OC(O)CH=CH 2 )of 906 hard coating : MeFBSEA was synthesized according to the procedure described in PCT Application No. WO200130873 (Savu et al.). MeFBSEA was added to the 906 hard coating at a value of 10% based on solids. After mixing, the solution was diluted to 30% solids with MEK. The solution was coated on a 2 mil (50 micron) transparent polyester film with a Mayer rod No. 6. The coated film was dried at 100°C for one minute. Let the film with the dry coating pass through a nitrogen-purged UV curing chamber with an H bulb in the curing chamber.

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Abstract

Dry erase articles having a writing surface that exhibits good writing receptivity and good resistance to ghosting and method of using such articles.

Description

Technical field [0001] The present invention relates to a dry erase product and the use of such products. The dry erase product has good writing acceptance for dry erase ink and is easy to remove the dry erase ink even after a long period of time between writing and erasing. . Background technique [0002] Due to its convenience and versatility, dry erase boards have been used as writing surfaces for many years. The board provides an expression device that eliminates the mess and trouble of the chalk board. [0003] The dry-erase marker written on the dry-erase board should form a dark solid line without beading. If the dry erase ink beaded on the writing surface, it will leave dotted lines or holes in the resulting written image. It is desirable to have a dry erase board on which the dry erase ink does not bead. [0004] There are many dry erase products on the market. Illustrative writing surfaces on such articles include porcelain steel, melamine, painted metals, glass, and U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L1/00
CPCB43L1/002B43L1/00
Inventor 弗雷德里克·J·古斯塔夫森景乃勇贾斯汀·A·里德尔理查德·J·波科尔尼刘兰虹普拉巴卡拉·S·拉奥杨宇
Owner 3M INNOVATIVE PROPERTIES CO
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