Structured retroreflective sheeting having a rivet-like connection

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5754338
SERIAL NO

08747105

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a retroreflective sheeting including a structured film having an array of structured elements and a sealing film attached to the structured film by a plurality of rivet-like connections perforating the sealing film. Preferably, the rivet-like connections form flanges. The preferred sealing film is a thermoplastic polymer with a ductile yield of at least about 20%. The retroreflective sheetings according to the present invention can also include a seal coat located on the sealing film. In some embodiments, the seal coat can be prepared from a seal coat precursor comprising radiation curable components. The present invention also includes methods of manufacturing the various embodiments of the retroreflective sheetings.

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Patent Owner(s)

  • MINNESOTA MINING AND MANUFACTURING COMPANY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frey, Cheryl M White Bear Lake, MN 15 899
Wilson, Bruce B Woodbury, MN 25 471

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