3m Innovative Properties Company

Scott A Boyd

Mark J Pellerite

Caroline M Ylitalo

James M Jonza

William H Moser

Jonathan D Zook

Joseph Clark Carls

Michael D Swan

Jennifer L Lee

Robert F Watkins

Lisa Flatt Nelson

Mark W Leverty

Terry R Bailey

David T Amos

Larry S Hebert

Christopher K Haas

Erik M Townsend

Eugene H Carlson

Dmitriy Salnikov

Joey L Reule

Clinton J Cook

Susan E Demoss

Provided is a protection film including a plurality of layers, including a first carrier layer having a plurality of electrically conductive fibers; a metal layer; and a second carrier layer having a plurality of electrically conductive fibers. Each of the first and second carrier layers has a void volume at least partially filled with a hardenable composition. Also provided is a protection film including a first metal layer, a carrier layer, and a second metal layer, in which the carrier layer is at least partially filled with a hardenable composition. These films can provide lightning strike protection with suitable tensile, rigidity and tack properties for automatic tape layup and automatic fiber placement applications.

Protection film

A composition is provided comprising: a) a curable epoxy resin; and b) 0.01-30% by weight of a polycarbodiimide according to Formula I:R&#x2014;{&#x2014;N&#x2550;C&#x2550;N&#x2014;R&#x2014;}&#x2014;N&#x2550;C&#x2550;N&#x2014;R&#x2003;&#x2003;(I)wherein n is an integer between 0 and 100, and wherein each R is independently selected from aromatic and aliphatic groups which contain between 1 and 24 carbons and which are optionally substituted, typically comprising 0.1-20% by weight of the polycarbodiimide. In some embodiments the present disclosure provides sheet materials made of such cured, uncured or partially cured materials. In some embodiments these compositions may be useful in making surfacing films for composite parts and may demonstrate good paint stripper resistance and microcrack resistance.

Epoxy compositions and surfacing films therefrom

An ink receptive article including a substrate having on at least a portion of a major surface thereof an antistatic layer, and wherein the antistatic layer has on at least a portion of a major surface thereof an ink receptive layer, wherein the ink receptive layer includes a crosslinked polymer selected from the group consisting of polyurethanes, polyethers, polyesters, polyacrlylics, polyureas, copolymers thereof, and blends thereof.

Ink receptive article

Retroreflective sheeting articles comprising a colorless thermal mass transferred image, methods of thermal mass transfer printing substrate such as polymeric films with a colorless thermal mass transferable composition, and thermal mass transfer ribbon articles comprising a colorless thermal mass transferable composition are described. The thermal mass transfer composition comprises a homogeneous unreactive thermoplastic composition comprising at least one acrylic resin and less than 3 wt-% of components that are opaque at ambient temperature.

Colorless thermal mass transfer compositions and articles

An improved printer and method of printing uses an electrostatic field at the point of ink contact with the print medium to improve ink application. This improved printer and printing method makes possible a higher resolution final image; provides for greater control of the application of ink on the print medium; permits the use of a wider range of inks having variable viscosities, surface tensions, and elasticities; and permits the use of a variety of ink application speeds.

Method of and apparatus for ink jet printing using an electrostatic field

Retroreflective sheeting is described comprising a viewing surface and a non-viewing surface and a thermal mass transferred image disposed in the optical path of the viewing surface wherein the thermal mass transferred image comprises a homogeneous unreactive thermoplastic composition. In one embodiment, the unreactive thermoplastic composition comprises at least one acrylic resin and at least one colorant, wherein the composition has less than 3 wt-% of components that are opaque at ambient temperature. The percent maximum diffuse luminous transmittance to total luminous transmittance of the composition is less than 50%.

Thermal mass transfer imaged retroreflective sheeting

The invention relates to retroreflective articles such as retroreflective sheeting that comprises a core sheet comprising retroreflective elements and a topcoat wherein the topcoat comprises certain water-borne acrylic polymer(s).

Retroreflective article comprising water-borne acrylic topcoats

Growing community of inventors

White Bear Lake, MN, United States of America

Scott A Boyd