Dow Global Technolgoies LLC

Dean Lee

Kim Louis Walton

Yi Jin

Rongjuan Cong

Gary Robert Marchand

Colin Li Pi Shan

Selim Yalvac

Morgan Mark Hughes

Allan Walter Mclennaghan

Thomas W Karjala

Lamy J Chopin, Iii

Burcak Conley

Lamy J Chopin Iii

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

A composition includes (A) 30-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of Cand C&#x3b1;-olefins of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) a density of 0.90 g/cc or less, and (iii) an MFR of 1 g/10 min or greater (230&#xb0; C./2.16 kg); and (B) 5-70 wt % of a block composite nucleator comprising: (1) a first polymer that includes polypropylene; (2) a second polymer that includes an alpha-olefin based polymer, the alpha-olefin being selected from at least one of a Cand C&#x3b1;-olefins, and (3) a block copolymer having a first segment and a second segment, the first segment of the block copolymer having the same composition as the first polymer in the block composite nucleator and the second segment of the block copolymer having the same composition as the second polymer of the block composite nucleator.

Nucleation with a block composite nucleator

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Midland, MI, United States of America

Dean Lee