Dow Global Technolgoies LLC

W.e.t. Automotive Systems Ag

Stefan Ultsch

Yushan Hu

Xiaosong Wu

Jeffrey Morris Cogen

Laura Bauerle Weaver

Jozef Van Dun

Michael Weiss

Larry W Mobley

Karl Zuercher

Guang Ming Li

Eva-Maria Kupsch

Jozef J I Van Dun

Miguel A Prieto Goubert

Aleksandar Stoiljkovic

Ming Ming

Barbara Bonavoglia

Varun Thakur

Jouko Vyoerykkae

Jozef Ji Van Dun

Burcak Conley

Svyatoslav Burmistrov

Caroline Laure Marie Miesch

Jozef J Van Dun

Jozef JI Van Dun

Peter Heydasch

The present disclosure provides embodiments of a halogen-free flame retardant composition including one or more polyolefin copolymers having a melt flow index of 350 grams per 10 minutes (g/10 min) to 1000 g/10 min measured at 190 C and 2.16 kg, wherein the one or more polyolefin copolymers comprises maleic anhydride-grafted polyolefin, ethylene-vinyl acetate copolymer, or both; and greater than 83 wt. % of inorganic fillers based on the total weight of the halogen-free flame retardant composition.

Extrudable halogen-free, flame retardant compositions

The present disclosure provides a fabric laminate. In an embodiment, the fabric laminate includes a fabric sheet, a coating layer, and a tie layer. The fabric sheet is composed of propylene-based polymer fibers. The coating layer is composed of one or more ethylene-based polymers. The tie layer is located between the fabric sheet and the coating layer. The tie layer is composed of at least 50 wt % of a crystalline block composite (CBC) and an optional blend component. The CBC includes (i) an isotactic crystalline propylene homopolymer (iPP); (ii) an ethylene/propylene copolymer; and (iii) a diblock with the formula (EP)-(iPP). The CBC has a block composite index (CBCI) from 0.1 to 1.0. The fabric laminate has a peel force from 20 N/15 mm to 40 N/15 mm.

Polypropylene laminate sheet

A composition comprising the following components: A) an olefin multi-block copolymer that has a I2 &#x2264;30 g/10 min; B) a propylene-based composition comprising the following: a) a propylene-based polymer; b) a propylene/alpha-olefin interpolymer, a propylene/ethylene interpolymer, or an ethylene/alpha-olefin interpolymer; wherein the propylene-based composition has a Tm(highest melting point) &#x2265;130&#xb0; C.

Propylene-based polymer compositions with excellent flexibility and hot air weldability

The present disclosure is directed to a process for producing thermoplastic polyolefin roofing membrane. The process includes directly adding components of a high-load flame retardant TPO formulation to a counter-rotating twin screw extruder. The process includes extruding the formulation with counter-rotation of the twin screws and forming a TPO roofing membrane having a tensile strength of greater than 10 MPa and a flame retardance of rating of classification D as measured in accordance with EN ISO 11925-2, surface exposure test.

Production of TPO roofing membrane via counter-rotating extrusion

The present disclosure provides a composition. In an embodiment, the composition includes A) an ethylene/acrylate interpolymer or an ethylene/acetate interpolymer; B) an ethylene/&#x3b1;-olefin multi-block copolymer; and C) a flame retardant. In an embodiment, the ethylene/acrylate interpolymer is a functionalized ethylene/acrylate interpolymer. The present composition exhibits improved dirt pick-up resistance.

Polymeric formulation with dirt pick-up resistance

The invention provides a composition comprising at least the following components: A) a first composition comprising a first ethylene/&#x3b1;-olefin block copolymer consisting of ethylene and C-C&#x3b1;-olefin comonomer; and where the first composition has a density from 0.87 g/cc to 0.90 g/cc, and a melt index (I) from 6.0 to 20.0 g/10 min; B) at least one filler that is capable of being excited by an alternating electromagnetic field at a frequency greater than, or equal to 10 MHz; C) at least one flame retardant selected from the group consisting of i) from 30.0 to 50.0 wt % of one or more non-halogen, inorganic flame retardant compounds, based on the weight of the composition; and ii) from 8.0 to 30.0 wt % of one or more halogen-containing flame retardant compounds, based on the weight of the composition; and D) at least one polar polymer.

High frequency weldable ethylene-based polymer compositions with good flame retardancy

The present disclosure is directed to a process for producing thermoplastic polyolefin roofing membrane. The process includes directly adding components of a high-load flame retardant TPO formulation to a counter-rotating twin screw extruder. The process includes extruding the formulation with counter-rotation of the twin screws and forming a TPO roofing membrane having a tensile strength of greater than 10 MPa and a flame retardance of rating of classification D as measured in accordance with EN ISO 1 1925-2, surface exposure test.

The invention provides a composition comprising the following: A) an ethylene/&#x3b1;-olefin/diene interpolymer; B) from 40 to 70 weight percent, based on sum weight of A and B, of an ethylene/&#x3b1;-olefin copolymer; and C) a sulfur-containing compound.

Polymer compositions and articles prepared from the same

The invention provides halogen-free, flame-retardant flexible polyolefin-based formulations.

Polyolefin based formulations for membranes and fabrics

The invention provides cross-linked polymeric films, laminates, membranes or other polymeric articles, which show rubber like heat resistance (hot set) and dimensional stability above the polymer melting point, while maintaining heat sealing properties. For example, the invention provides a film comprising at least one layer formed from a composition comprising the following components: A) at least one polymer selected from the group consisting of the following: i) an ethylene-based polymer, ii) an ethylene/&#x3b1;-olefin/diene interpolymer, and ii) a C4-C10 olefin-based polymer; B) at least one polymer selected from the group consisting of a propylene/ethylene interpolymer and a propylene/&alpha,- -olefin interpolymer; and wherein the film is crosslinked using radiation and/or chemicals.

Crosslinked films and articles prepared from the same

A flexible heating element for a vehicle seat or the like includes at least one flexible heating resistor element and at least two flexible supply electrodes arranged at a distance from each other and at least partly embedding the heating resistor element between them to form a layered structure. The flexible heating resistor is formed of a material having a positive temperature coefficient (PTC) effect. The layered structure includes a plurality of recesses formed therein defining a plurality of webs, the webs and recesses resulting in a net-like structure.

Growing community of inventors

Staefa, Switzerland

Stefan Ultsch