Invention Application
- Patent Title: STAIN RESISTANT RETROREFLECTIVE ARTICLES
- Patent Title (中): 耐抗体回归文章
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Application No.: US15334408Application Date: 2015-04-24
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Publication No.: US20170059751A1Publication Date: 2017-03-02
- Inventor: Ruby Chakraborty , Cheryl L.S. Elsbernd , Shri Niwas
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- International Application: PCT/US2015/027425 WO 20150424
- Main IPC: G02B5/128
- IPC: G02B5/128 ; G02B1/14 ; B29D11/00

Abstract:
Retroreflective articles include transparent microspheres (120) protruding from a bead bond layer (140), with reflective metal layers (130) coated on a portion of the transparent microspheres. Retroreflective articles with anti-staining properties have bead bond layers that contain one or more corrosion inhibiting compounds. At least a portion of the one or more corrosion inhibiting compounds migrates through the reflective metal layer to passivate the exposed metal surface of the reflective metal layer.
Public/Granted literature
- US10215894B2 Stain resistant retroreflective articles Public/Granted day:2019-02-26
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