Microstructured transfer tapes

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United States of America Patent

PATENT NO 9879157
SERIAL NO

14349020

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Abstract

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Transfer tapes include an optically transparent adhesive layer with a first major surface and a second major surface, with at least one of the major surfaces including a microstructured pattern that is a permanent feature of the adhesive surface. The microstructured surface alters the direction of light. The optically transparent composition may include a low Tg polymeric component with a Tg of less than 20° C., and an acid or base functionality, and a high Tg polymeric component with a Tg of greater than 20° C., and an acid or base functionality, such that the functionality of the low Tg polymeric component and the functionality of the high Tg polymeric component form an acid-base interaction when mixed. The transfer tapes can be adhered to substrates to provide a microstructured surface to the substrate surface.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYPO BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Biernath, Rolf W Wyoming, US 85 1847
Brott, Robert L Woodbury, US 93 1824
Schaffer, Kevin R Woodbury, US 65 2331
Sherman, Audrey A St. Paul, US 239 4614
Wheatley, John A Lake Elmo, US 252 9818
Woody,, V Joseph W St. Paul, US 13 132

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