Rohm and Haas Company

Dow Global Technolgoies LLC

Daniel W Himmelberger

William Bryan Griffith, Jr

Melinda L Einsla

Xiaosong Wu

Sarah Zolynski

David L Malotky

Cristina Serrat

Vivek Kalihari

Lamy J Chopin, Iii

John W Garnett, Iv

Brandon Rowe

Vinita Yadav

Melissa Lane

Dana R Breed

Cody W Lawrence

Chuan-Yar Lai

William B Griffith

Lamy J Iii Chopin

Brandon W Rowe

Iii Lamy J Chopin

Activatable adhesive compositions are disclosed. The activatable adhesive compositions comprise a two-stage polymer particle, comprising a first stage comprising a hydrophilic acrylic polymer having an acid content of less than 200 mg KOH/g, a second stage polymerized within the first stage and comprising a hydrophobic acrylic polymer, and a tackifier soluble in the first stage and the second stage. Further, linerless labels and tapes comprising activatable adhesive compositions are disclosed. Still further, methods for adhering a first substrate to a second substrate using an activatable adhesive composition are also disclosed.

Activatable adhesive compositions and linerless labels and tapes comprising same

The present disclosure includes a composition that includes an ethylene/&#x3b1;-olefin random copolymer having density of 0.890 g/cmor less, a melting point of 100&#xb0; C. or less, and a melt index from 0.2 g/10 min to 8.0 g/10 min, a styrenic block copolymer comprising from 1 wt % to less than 50 wt % units of styrene, a tackifier, and an oil. The composition may exhibit an overall melt index of the composition of from 2 g/10 min to 15 g/10 min. The composition can be used as an adhesive in some embodiments. The present disclosure also includes multilayer films that include the composition, which may provide reclose functionality to the multilayer film. The multilayer films that include the composition may provide low initial opening force and improved reclose adhesion through multiple reclose cycles. The present disclosure also includes various types of reclosable packaging articles that include the multilayer films and adhesive compositions.

Compositions and multilayer films for reclosable packaging

A thermally reversible adhesive comprising a) a copolymer of i) a conjugated diene acrylate or methacrylate and ii) at least one acrylic monomer; and b) a bismaleimide crosslinking agent, a process for its preparation, and various end uses, are disclosed.

Thermally reversible polymer cross-linking for pressure sensitive adhesives

The present disclosure provides a composition. In an embodiment, the composition includes: The composition is suitable for use as a pressure sensitive adhesive layer in a reclosable packaging structure.

Adhesive composition for reclosable multi-layer film

The invention provides a composition comprising the following components: A) an ethylene/alpha-olefin block copolymer; B) a tackifies; and wherein the composition has a melt index (I2) from 1 to 50 g/10 min and an I10/I2 ratio from 7.5 to 13.

Extrudable adhesive formulations containing olefin block copolymers

The present disclosure is directed to a composition comprising a) an olefin block copolymer; b) a tackifier; c) an ethylene-based polymer with a density from 0.90 g/cc to 0.94 g/cc; and d) an oil. The composition finds advantageous application as a cohesive layer in a fastening device, for example, a fastening device for a hygiene absorbent product.

Cohesive fastener formulations with olefin block copolymers

A composition having three components. The first component is from 20 to 80 wt % of a styrene-diene block copolymer having from 10-30 wt % polymerized units of styrene, wherein the block copolymer is present as a dispersion of copolymer in water, and the dispersion contains less than 5 wt % organic solvent based on total dispersion weight. The second component is from 0.5 to 20 wt % of a plasticizer. The third component is from 20 to 80 wt % of a tackifier.

Heat activated pressure sensitive adhesive

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Green Lane, PA, United States of America

Daniel W Himmelberger