Braskem S.a.

Mauro Alfredo Soto Oviedo

Giancarlos Delevati

Ana Paula Rodrigues Camilo

Omar Wandir Renck

Fernanda Munhoz Anderle

José Augusto Esteves Viveiro

Gislene Zehetmeyer

Adriane Gomes Simanke

Manoela Ellwanger Cangussu

Hadi Mohammadi

Markus Busch

Ashley Hanlon

Jonas Alves Fernandes

Sascha Hintenlang

Nei Sebastiao Domingues Junior

Camilo Delfino

Jose Augusto Esteves Viveiro

A polymer composition may include an elastomeric ethylene-vinyl acetate, in which at least a portion of ethylene from the elastomeric ethylene-vinyl acetate is obtained from a renewable source of carbon. A curable polymer composition, an expandable polymer composition, articles, cured articles, and expanded articles may include or be formed from such polymer composition. A process for producing a polymer composition may include polymerizing ethylene at least partially obtained from a renewable source of carbon with vinyl acetate to produce an ethylene vinyl acetate copolymer; and mixing the ethylene-vinyl acetate copolymer with an elastomeric polyolefin to produce an elastomeric ethylene-vinyl acetate.

Bio-based elastomeric EVA compositions and articles and methods thereof

Compositions may include an EVA copolymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety. Methods may include preparing a polymer composition by adding ethylene, vinyl acetate and one or more polar comonomers to a reactor or extruder, wherein at least one of the one or more polar comonomers include an amine moiety; and reacting the ethylene, vinyl acetate and one or more comonomers to produce the polymer composition. Compositions may include an adhesive film composition that include at least one layer including a polymer produced from ethylene, vinyl acetate, and one or more polar comonomers, wherein at least one of the one or more polar comonomers include an amine moiety.

Modified ethylene vinyl acetate compositions, polymer blends and films made therefrom

A polymer composition may include a polymer produced from ethylene, and one or more vinyl carbonyl monomers having the general structure (I): where R, Rand Rare independently selected from a group consisting of hydrogen, halogen, hydroxyl, alkyl, substituted alkyl, alkoxy, substituted alkoxy, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aralkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, carboxamino(alkyl), (cyano)alkyl, alkoxyalkyl, hydroxyalkyl, heteroalkyl, substituted cycloalkyl, substituted cycloalkoxy, substituted aryl, and substituted heterocycles; and Y and Z are independently selected from a group consisting of O, (CRR), (CHR)&#x2014;R, phenylene, CH&#x2014;OR, and NR, wherein R, R, R, R, and Rare independently selected from a group consisting of hydrogen, halogen, CH, and alkyl, and wherein Ris independently selected from a group consisting of hydrogen; halogen; hydroxyl; alkyl; linear ether; cyclic ether; Si(R), wherein Ris independently selected from a group consisting of hydrogen, halogen, and alkyl; and (C&#x2550;O)&#x2014;R, wherein Ris an alkyl; and Ris independently selected from a group consisting of halogen, hydroxyl, alkyl, substituted alkyl, alkoxy, substituted alkoxy, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, aralkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, carboxamino(alkyl), (cyano)alkyl, alkoxyalkyl, hydroxyalkyl, heteroalkyl, substituted cycloalkyl, substituted cycloalkoxy, substituted aryl, and substituted heterocycles, where the polymer composition has a number average molecular weight (M) ranging from 5 kDa to 10000 kDa obtained by GPC.

Polyethylene copolymers and products and methods thereof

A copolymer may include ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon. Embodiments may also be directed to curable polymer compositions, expandable polymer compositions, articles, cured articles, and expanded articles formed from or including such copolymers of ethylene and vinyl acetate, in which the ethylene is at least partially obtained from a renewable source of carbon. A process for producing an ethylene vinyl acetate copolymer may include polymerizing ethylene at least partially obtained from a renewable source of carbon with vinyl acetate to produce the ethylene vinyl actate copolymer.

Bio-based EVA compositions and articles and methods thereof

Foamed compositions that include: one or more foamable polymers; one or more ionomeric additives; and wherein the foam composition exhibits shrinkage as determined at 70&#xb0; C.*1 h according to the PFI method between 0.1 and 3.5%. Methods may include preparing a polymer composition by combining one or more foamable polymers and one or more ionomeric additives in a mixer to produce the polymer composition; and foaming the polymer composition to generate a polymer foam exhibiting shrinkage as determined at 70&#xb0; C.*1 h according to the PFI method of between 0.1 and 3.5%.

Foam composition with improved properties and applications thereof

Growing community of inventors

São Paulo, Brazil

Mauro Alfredo Soto Oviedo