Braskem S.a.

Braskem America, Inc.

Hadi Mohammadi

Michelle K Sing

Nei Sebastião Domingues Junior

Kevin Herrington

Adriane Gomes Simanke

Ana Paula De Azeredo

Manoela Ellwanger Cangussu

Jacob Fallon

Juliana Breda Soares

Kimberly Miller McLoughlin

Jorge Manuel Jardim Da Silva

Alexandre Di Pintor Da Luz

Leonardo Ito

Collin Azinger

Murilo Lauer Sanson

Gisele Marschner Rasia

Carmem Rosane Isse Gomes

Patrícia Cofferri

Michelle Kay Sing

Karin Janete Stein Brito

Cristiane Jaqueline Mauss

Moises Magalhaes Werlang

A polymeric composition may include a thermoplastic polymer including: at least one monomer selected from the group consisting of vinyl esters, C2-C12 olefins, and combinations thereof; and a dynamic crosslinking group; and a dynamic crosslinking system to dynamically crosslink the thermoplastic polymer.

Dynamically crosslinkable polymeric compositions, articles, and methods thereof

A method of controlling long chain branching in an ethylene-based polymer includes polymerizing ethylene with one or more optional monomers to form an ethylene-based polymer, and controlling a degree of long chain branching (LCB) in the ethylene-based polymer. The degree of LCB ranges from 0.1 per 1000 carbon atoms in the polymer backbone to 10 per 1000 carbon atoms in the polymer backbone, as measured byCNMR. The degree of LCB is controlled by adding one or more branched vinyl ester to the polymerizing step in an amount ranging from 0.01 mol % to 5.0 mol %, relative to total monomer content. A polymer composition contains the ethylene-based polymer. An article includes the polymer composition containing the ethylene-based polymer.

Method of controlling polyethylene architecture

The invention relates to a sinterable polymer composition, comprising: a random copolymer of propylene and an olefinic comonomer, containing about 2 to 10 wt % olefinic comonomer content, relative to 100 wt % of the random copolymer. The sinterable polymer composition may also contain at least one of a clarifier and a nucleator, and/or at least one additive selected from the group consisting of a primary antioxidant, a secondary antioxidant, an acid scavenger, a peroxide, an enhanced IR energy absorber, a long-term heat agent, and a polyolefin elastomer. The sinterable polymer composition has a melt flow rate from about 1 to 150 g/10 min (230° C./2.16 kg), measured according to ASTM D 1238; a crystallization temperature, Tc, from about 105 to 150° C.; and a xylene solubles content, XS, from about 3% to 40%.

Polypropylene polymers for powder bed fusion based additive manufacturing

A compounded polymer composition suitable for manufacturing of isotropic three-dimensional printed articles may include an impact copolymer, a low crystalline ethylene/α-olefin copolymer; a nucleating agent; and filler, where the impact copolymer may include a matrix phase comprising a propylene-based polymer or copolymer; and a dispersed phase in the matrix phase, the dispersed phase comprising an ethylene-based copolymer, the ethylene-based copolymer having a C3-C12 comonomer, wherein the dispersed phase has a different composition than the matrix phase.

Polyolefins having improved dimensional stability in three-dimensional printing, articles formed therefrom, and methods thereof

Growing community of inventors

Philadelphia, PA, United States of America

Hadi Mohammadi