Dow Global Technolgoies LLC

Allan Walter Mclennaghan

Yi Jin

Kate R Brown

Kim Louis Walton

Gary Robert Marchand

Selim Yalvac

Cynthia L Rickey

Carl N Iverson

Wanfu Ma

Colin Li Pi Shan

Rongjuan Cong

Jozef Van Dun

Santosh S Bawiskar

Olaf Henschke

Jozef J I Van Dun

Ling Zhang-Watson

Burcak Conley

Dean Lee

Ryan Schneider

Jozef J Van Dun

Jozef JI Van Dun

The present disclosure provides a composition. The composition contains (A) an ethylene/α-olefin copolymer containing (i) ethylene and (ii) from 20 wt % to 35 wt % C-Cα-olefin comonomer, the ethylene/α-olefin copolymer having a density from 0.880 g/cc to 0.895 g/cc, a melt viscosity, at 177° C., from 4,000 mPa·s to 20,000 mPa·s, and a glass transition temperature from −55° C. to −20° C.; (B) a tackifier, and (C) a wax.

Adhesive composition

A composition comprising the following components: A) propylene/ethylene copolymer that has a density ≤0.880 g/cc, and a MWD(conv) from 2.00 to 3.00 and a melt viscosity (177 C)≤80,000 mPa*s; B) olefin multi-block copolymer that has a density ≤0.890 g/cc and a melt index (I2)≥0.5 g/10 min.

Compositions containing low molecular weight propylene-based polymers and an olefin multi-block copolymer

A composition comprising an acid and/or anhydride grafted ethylene/alpha-olefin interpolymer that comprises the following properties: A) number of grafts per polymer chain&#x2265;1.80, and B) melt viscosity (at 177&#xb0; C.)&#x2264;50,000 mPa&#xb7;s.

Functionalized ethylene/alpha-olefin interpolymers with high graft levels

The present disclosure provides an adhesive composition. The adhesive composition includes: A) a propylene based plastomer or elastomer (PBPE) comprising up to 15 wt % units derived from ethylene and having (v) a weight average molecular weight from 20,000 to 50,000 g/mole.

The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes

Hot melt adhesive composition

The present disclosure provides a composition comprising: A) a propylene/C4-C10 alpha-olefin interpolymer; (i)) a total unsaturation per mole of propylene from 0.010% to 0.030%, (ii) a density from 0.855 g/cc to 0.890 g/cc, and (iii) a melt viscosity, at 177 C, from 500 cP to 200,000 cP.

Compositions containing low molecular weight propylene-based polymers

A hot melt adhesive (HMA) composition includes (A) from 1-60 wt % of a block composite compatibilizer comprising (i) a hard polymer that includes propylene, (ii) a soft polymer that includes ethylene, and (iii) a block copolymer having a soft block and a hard block, the hard block of the block copolymer having the same composition as the hard polymer of the block composite compatibilizer and the soft block of the block copolymer having the same composition as the soft polymer of the block composite compatibilizer; (B) from 1-70 wt % of a tackifier; (C) from 1-40 wt % of at least one selected from the group of a wax and an oil; and (D) Optionally, from greater than zero to 97 wt % of a polymer component that includes an ethylene-based polymer and/or a propylene-based polymer.

Hot melt adhesive composition including a block composite compatibilizer

The present disclosure provides an adhesive composition. The adhesive composition includes: A) a propylene based plastomer or elastomer (PBPE) comprising up to 15 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.010% to 0.030%; (iii) a density from 0.860 g/cc to 0.890 g/cc; (iv) a melt viscosity at 177&#xb0; C. from 1,000 mPa&#xb7;s to 15,000 mPa&#xb7;s; and (v) a weight average molecular weight from 20,000 to 50,000 g/mole.

The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes A) a propylene based plastomer or elastomer (PBPE) comprising up to 10 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.01% to 0.03%; (iii) a density from 0.870 g/cc to 0.890 g/cc; (iv) a melt viscosity at 177&#xb0; C. from 800 mPa&#xb7;s to 11,000 mPa&#xb7;s; and (v) a weight average molecular weight from 20,000 to 50,000 g/mol; B) a tackifier; and C) a wax.

The present disclosure is directed to a pressure sensitive adhesive composition. The pressure sensitive adhesive composition includes an olefin block copolymer, a silane-grafted olefin block copolymer, a tackifier, and an oil. The pressure sensitive adhesive composition has a shear adhesion greater than 60 minutes. The pressure sensitive adhesive composition exhibits improved shear adhesion while simultaneously maintaining loop tack greater than 4.0 N/25 mm.

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Lachen, Switzerland

Allan Walter Mclennaghan