3m Innovative Properties Company

Chris A Pommer

John Charles Clark

Alexander J Kugel

Mikhail L Pekurovsky

Christopher Bland Walker, Jr

Vivek Krishnan

Matthew S Stay

Aaron K Nienaber

John P Baetzold

Kui Chen-Ho

Yongshang Lu

Dong-Wei Zhu

Ross E Behling

Jay M Jennen

Charlie C Ho

Robert B Secor

Kara A Meyers

Samad Javid

Hyacinth L Lechuga

Anish Kurian

Jeremy P Gundale

Eric A Vandre

Toheeb B Alabi

Brittni M Schiewer

Michelle Ji

Christopher B Walker

Described herein is a multilayered article () and methods of making and using such articles. The multilayered article () comprises: ⋅(a) a microsphere layer () comprising a plurality of microspheres disposed in a monolayer; ⋅(b) a bead bonding layer () comprising a first major surface and a second opposing major surface and the plurality of microspheres is partially embedded in the first major surface of the bead bonding layer, and comprises a thermoset polyurethane having a glass transition temperature of at least 35° C.; ⋅(c) a primer layer () disposed on the second major surface of the bead bonding layer wherein the primer layer comprises a copolymer of polyurea and polyurethane and wherein the primer layer is covalently attached to the bead bonding layer via urea linkages; and ⋅(d) an elastomeric layer () disposed on the primer layer opposite the bead bonding layer, wherein the elastomeric layer comprises a polyurethane thermoplastic elastomer.

Microsphere-coated polyurethane articles and methods of making the same

Wet-on-wet coating processes are provided to produce multilayer articles. First and second coating materials are sequentially applied on to a structured substrate surface to form a skin layer directly over the structured substrate surface and a bulk layer over the skin layer. The conformability of the skin layer can be adjusted to provide desired surface and bulk properties.

Multilayer articles via wet-on-wet processing

Described herein is an article having a microsphere layer comprising a monolayer of microspheres, the monolayer of microspheres comprising a first area substantially free of microspheres and a second area comprising a plurality of randomly-distributed microspheres, wherein the monolayer of microspheres comprises a predetermined pattern, the predetermined pattern comprises at least one of (i) a plurality of the first areas, (ii) a plurality of the second areas, and (iii) combinations thereof; and (b) a bead bonding layer disposed on the microsphere layer, wherein the plurality of microspheres are partially embedded in a first major surface of the bead bonding layer, wherein the article has a retroreflectivity (R) of less than 5.0 candelas/lux/square meter. Also disclosed herein are transfer carriers and methods of making the articles and transfer carriers.

Article featuring a predetermined pattern of randomly distributed microspheres and methods of making the same

Described herein is decorative article having a coefficient of friction less than 0.3 wherein the decorative articles comprises: (i) a microsphere layer comprising a plurality of microspheres, wherein the microsphere layer comprises a monolayer of microspheres and wherein the plurality of microspheres are in a microscopic periodic pattern; and (ii) a bead bonding layer disposed on the microsphere layer, wherein the plurality of microspheres are partially embedded in the bead bonding layer. Also disclosed herein are transfer articles and methods of making the decorative articles and transfer articles.

Decorative article featuring a microscopic periodic pattern and methods of making the same

Growing community of inventors

Woodbury, MN, United States of America

Chris A Pommer