Dow Global Technolgoies LLC

Basell Poliolefine Italia S.r.l.

Davide Micheletti

Shahram Mihan

Yu Wang

Giampaolo Pellegatti

Jean-Paul Masy

Fabiana Fantinel

Rajat Duggal

Gerd Mannebach

Weijun Zhou

Jorge Jimenez

Luigi L Bertucelli

Vanni Parenti

Yanli Feng

Rossella Riccio

Yibei Gu

Melissa M Rose

Guiseppe Lista

Pavel L Shutov

Luigi Bertucelli

William N Ii Felsted

Fabiana Fantinell

A polyisocyanate component, a polyurethane foaming system, and an article made therefrom, wherein the polyisocyanate component includes (a) a preformed mixture including an aromatic oxazolidone compound that is the reaction product of at least one aromatic epoxide and at least one first polyisocyanate having an average isocyanate functionality of no more than 2.7 and greater than 1.8, in the presence of at least one catalyst, the aromatic oxazolidone compound includes at least one free isocyanate group and at least one aromatic oxazolidone group, the aromatic oxazolidone group includes an aromatic group and an oxazolidone group, and (b) at least one second polyisocyanate has an average isocyanate functionality equal to or greater than 2.7 and less than 6.0. The second polyisocyanate is added to the preformed mixture to form the polyisocyanate component. The polyisocyanate component has a viscosity of no more than 4.0 Pa-sat 25&#xb0; C., an aromatic oxazolidone group content of 2 weight percent to 10 weight percent based on a total weight of the polyisocyanate component, and an average isocyanate functionality of from 1.8 to 6.0.

Polyisocyanate component, a polyurethane foaming system and an article made therefrom

A storage stable isocyanate-reactive composition includes a reactive component including (a) 5 wt % to 30 wt % of at least one Novolac-type polyoxypropylene polyether polyol having a hydroxyl functionality from 2 to 5 and a hydroxyl number from 130 to 450 mg KOH/g, (b) 20 wt % to 60 wt % of at least one high functional polyether polyol having a hydroxyl functionality from 6 to 8 and a hydroxyl number from 300 to 700 mg KOH/g, (c) 2 wt % to 30 wt % of at least one low functional polyether polyol having a hydroxyl functionality from 2 to 5 and a hydroxyl number from 50 to 400 mg KOH/g, (d) 2 wt % to 30 wt % of at least one amine initiated polyol having a hydroxyl number from 250 to 600 mg KOH/g, and (e) 1 wt % to 25 wt % of one or more additives; and a hydrocarbon physical blowing agent component in an amount of at least 10 parts by weight for each 100 parts by weight of the reactive component.

Isocyanate-reactive formulation for rigid polyurethane foam

A polyester polyol is formed in a polycondensation reaction between an aromatic dicarboxylic acid, a polyol, and an epoxy compound having a straight chain alkyl or alkenyl group having at least six carbon atoms. The polyester polyol exhibits excellent compatibility with hydrocarbon blowing agents. As such, it is a useful component in rigid polyurethane foam formulations that are contain hydrocarbon blowing agents.

Polyester polyol and polyol blends and rigid polyurethane foam manufacturing

A polypropylene composition comprising: A) from 30% to 90% by weight of a propylene polymer composition comprising: B) from 10% to 70% by weight of a multimodal ethylene copolymer wherein the comonomer is selected from the derived units of alpha olefins of formula CH&#x2550;CHT wherein T is a C-Calkyl group; having the following properties: C) from 0 to 50% by weight; preferably from 0 to 20% of a filler.

Polymer composition

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Formigine, Italy

Davide Micheletti