3m Innovative Properties Company

John R Jacobsen

Kyle J Lindstrom

Jayshree Seth

Philip D Heppner

Joseph F Dellaria, Jr

Matthew R Radmer

Doris Stoermer

Zhong Chen

Luke T Dressel

Lili Qie

Zhipeng Song

William H Moser

Mark F Ellis

Peggy S Willett

Joan T Moseman

Babu Nana Gaddam

Hae-Seung Harry Lee

Kumars Sakizadeh

David James Yarusso

Craig E Hamer

Soyoung Kim

Robert D Waid

Chi-Ming Tseng

Bernhard M Zimmermann

Megan P Lehmann

Andrew Satrijo

Daniel E Duffy

Shujun J Wang

Sung-Won Ha

Nathan B Fong

A pressure-sensitive adhesive is provided that is a dried product of a latex composition, which is formed from an emulsion composition. The latex composition and the emulsion composition are also provided. The emulsion composition has droplets that contain various monomers plus a (meth)acrylate polymer and a hydrogenated hydrocarbon tackifier dissolved in the monomers. Additionally, an article containing a layer of the pressure-sensitive adhesive and a method of forming the pressure-sensitive adhesive are provided. The pressure-sensitive adhesives often have both high peel adhesion and high shear strength (i.e., high cohesive strength or high shear holding power).

Water-based pressure-sensitive adhesive compositions

Disclosed is a crosslinked adhesive composition comprising a low T(meth)acrylate copolymer component, a high T(meth)acrylate copolymer component, and a hydrogenated hydrocarbon tackifier. This disclosure provides a pressure-sensitive adhesive and pressure-sensitive adhesive articles that are particularly useful in the bonding of low surface energy (LSE) substrates.

Adhesive composition

A pressure-sensitive adhesive is provided that is a dried product of a latex composition, which is formed from an emulsion composition. The latex composition and the emulsion composition are also provided. The emulsion composition has droplets that contain various monomers plus a (meth)acrylate polymer dissolved in the monomers. Additionally, an article containing a layer of the pressure-sensitive adhesive and a method of forming the pressure-sensitive adhesive are provided. The pressure-sensitive adhesives often have both high peel adhesion and high shear strength (i.e., high cohesive strength or high shear holding power).

A method for preparing an acrylate adhesive is provided by the steps of partially polymerizing a monomer mixture to provide a syrup polymer composition having a high molecular weight solute copolymer. This first syrup composition is again polymerized to provide a second syrup polymer composition having a low molecular weight copolymer. The second syrup polymer composition is provided with a crosslinking agent and further polymerized to provide the adhesive composition.

Acrylic adhesive composition with controlled molecular weight

The methods of preparing hot melt processable pressure sensitive adhesives include combining an elastomeric (meth)acrylate random copolymer and a discontinuous fibrous material in a hot melt mixing apparatus, and mixing to form a hot melt processable pressure sensitive adhesive. The elastomeric (meth)acrylate random copolymer may be contained within a thermoplastic pouch, and the hot melt mixture may include a relatively high level of tackifying resin. The elastomeric (meth)acrylate random copolymer may contain branching agents and photosensitive crosslinking agents. The hot melt processable pressure sensitive adhesives can be used to prepare transfer tapes.

Hot melt processable pressure sensitive adhesives containing fibrous materials

Imidazopyridine compounds that contain an ether or thioether functionality at the 1-position are useful as immune response modifiers. The compounds and compositions of the invention can induce the biosynthesis of various cytokines and are useful in the treatment of a variety of conditions including viral diseases and neoplastic diseases. Methods of preparing the compounds and intermediates useful in the preparation of the compounds are also disclosed.

Ether substituted imidazopyridines

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Woodbury, MN, United States of America

John R Jacobsen