Dow Global Technolgoies LLC

David Hong Fei Guo

Bin Li

Given Jing Chen

Lotus Hua Huang

Wilson Xiao Wei Yan

Journey Lu Zhu

Lan Lu

Kim Louis Walton

Yabin Sun

Cheng Chen

Yong Chen

Gangwei Sun

Hong Yang

Xiangyang Tai

Weiming Ma

Dachao Li

Yongyong Yang

Jianxin Zhang

Yurong Cao

Lei Ying

Zhe Du

Xiaorong A He

Leon Bin Li

In one aspect there is provided a foam comprising: a polymeric matrix comprising polyethylene grafted polymerized siloxane, and a plurality of cells formed in the polymeric matrix and containing a blowing agent comprising carbon dioxide. In another aspect there is provided a method of making a foam comprising: grafting polymerized siloxane to polyethylene to form a grafted intermediate; molding the grafted intermediate to form a molded intermediate; and foaming the molded intermediate using high-pressure COto form the foam, wherein the foam has a porosity greater than 75%.

Polydimethylsiloxane grafted polyethylene foam

The present disclosure provides a wire or cable comprising a flame retardant-free thermoplastic inner sheath and an outer sheath composition comprising, based on the weight of the composition, (a) 10 wt % to 90 wt % of a TPU based resin, (b) 5 wt % to 90 wt % of a metal hydrate, (c) 2 wt % to 50 wt % of a nitrogen-based phosphorus flame retardant, and (d) 2 wt % to 50 wt % liquid phosphate modifier, wherein the outer sheath is in contact with the insulation covering, and wherein the outer sheath has a thickness from greater than zero to 0.8 mm.

Halogen-free flame retardant TPU composition for wire and cable

A halogen-free, flame retardant composition comprises: A. A polymer blend comprising: 1. Polypropylene, and 2. Thermoplastic elastomer (TPE) other than the polypropylene of (A)(1), and B. An intumescent flame retardant comprising at least one of: 1. A compound of Formula 1 where M is at least one of melamine, morpholine, piperazine, piperidine, alkyl hydroxyl and a triazine polymer of Formula 2 where D is a heterocyclic or polyamine moiety, and m and n are independently integers the sum (m+n) of which is less than 1000, and 2. A piperazine phosphate. 

Halogen-free, flame retardant composition for wire and cable applications

Halogen-free, flame retardant compositions comprising in weight percent based on the weight of the composition: A. 20 to 60% TPU/Si-g-EVA polymer blend in which the Si-g-EVA is crosslinked, B. 1 to 25% organic phosphate ester, C. 30 to 60% metal hydrate, and D. 0.1 to 10% epoxidized novolac. Optionally, the compositions further comprise in weight percent based on the weight of the composition, one or more of: E. 0.01 to 0.5% anti-dripping agent, F. 0.1 to 2% additive; and G. 0.1 to 5% filler.

Halogen-free, flame retardant composition comprising crosslinked silane-g-EVA

The present disclosure provides a flexible, halogen-free, flame retardant composition. The composition includes from about 25 wt % to about 95 wt % of a thermoplastic polyurethane (TPU); from about 5 wt % to about 50 wt % of an olefin block copolymer (OBC); and from about 30 wt % to about 70 wt % of a flame retardant. The flame retardant is selected from resorcinol bis(diphenyl 5 phosphate) (RDP), bis diphenyl phosphate (BDP), bisphenol-A bis(diphenyl phosphate) (BPADP), aluminum trihydrate (ATH), a nitrogen/phosphorus-based halogen-free flame retardant, epoxidized novolac resin, and combinations thereof. The composition requires no compatibilizer for the TPU and OBC. The composition finds application in wire and cable structures.

Halogen free, flame retardant compositions

Compositions comprising (A) propylene-alpha-olefin copolymer, (B) olefin block copolymer, and (C) DPO-BSA molecular melt (MM) are useful in the preparation of the top skin layer of artificial leather multi-layer structures.

Composition comprising propylene-alpha-olefin copolymer, olefin block copolymer and DPO-BSA molecular melt

A halogen-free, flame retardant composition comprises thermoplastic polyurethane, olefin block copolymer, carbonyl-containing olefin polymer compatibilizer, and flame retardant package comprising bisphenol-A bis(diphenyl phosphate) and/or resorcinol bis(diphenyl phosphate), a nitrogen/phosphorus based, halogen-free flame retardant, and epoxidized novolac. The composition that will not only be processed easily to make a wire or cable sheath but also pass both the VW-1 flame retardancy test and the UL1581 heat deformation test at 150&#xb0; C. exhibits good tensile and flexibility properties.

Halogen free, flame retardant compositions for wire and cable applications

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Shanghai, China

David Hong Fei Guo