Title: Retroreflective article having a coloured layer containing reflective flakes and a dye covalently bonded a polymer
Application Number: 99816734 Application Date: 1999.10.26
Publication Number: 1352749 Publication Date: 2002.06.05
Approval Pub. Date: 2004.12.08 Granted Pub. Date: 2004.12.08
International Classifi-cation: A41D13/01;G02B5/128
Applicant(s) Name: 3M Innovative Properties Co. Address:
Inventor(s) Name: R.J. Fleming
Attorney & Agent: zhu limeng
Abstract:
    Exposed lens retroreflective article (10) that comprises a colored layer (14) and a layer of optical elements (12) that are partially embedded in the colored layer (14). The colored layer (14) comprises refletive flakes (16) and a dye that is covalently bonded to a polymer (18). The articles can retain their color after multiple industrial wash cycles. The use of a reactive dye, reflective flakes, and/or polymer precursor during the preparation of the colored layer enables a launderably-durable colored retroreflective article to be made without the use of a solvent and without the use of a temporary carrier.
Time: 11
<- Previous Patent:Clothes adjusting structure   |  Next Patent:Bag clothes ->