Abstract: 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° C.

Abstract: 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° C.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A polypropylene composition comprising: A) from 30% to 90% by weight of a propylene polymer composition comprising: a1) from 20% to 90% of a propylene homopolymer, or a copolymer of propylene containing 3% or less of derived units of ethylene or C4-C10 ?-olefin(s) or of combinations thereof, said homopolymer or copolymer having a content of isotactic pentads (mmmm), measured by 13C NMR on the fraction insoluble in xylene at 25° C., higher than 96; a2) from 10% to 80%, of a copolymer of ethylene containing from 40% to 70% of derived units of propylene or C4-C10 ?-olefin(s) or of combinations thereof; 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 CH2?CHT wherein T is a C3-C10 alkyl group; having the following properties: i) density (with ISO 1183) comprised in the range from 0.850 to 0.

Abstract: The present invention discloses polyester-polyether polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester-polyether polyols produced by the reaction of: 1) phthalic anhydride with an alcohol having a nominal functionality of 3 and a molecular weight of 90 to 500 under conditions to form a phthalic anhydride half-ester; and 2) alkoxylating the half-ester formed in step 1 to form a polyester-polyether polyol having a hydroxyl number of from 200 to 350; with the proviso when the alcohol is a polyether polyol, the polyether polyol contains at least 70 weight percent of polyoxypropylene.

Abstract: A polypropylene composition comprising: A) from 30% to 90% by weight of a propylene polymer composition comprising: a1) from 20% to 90% of a propylene homopolymer, or a copolymer of propylene containing 3% or less of derived units of ethylene or C4-C10 ?-olefin(s) or of combinations thereof, said homopolymer or copolymer having a content of isotactic pentads (mmmm), measured by 13C NMR on the fraction insoluble in xylene at 25° C., higher than 96; a2) from 10% to 80%, of a copolymer of ethylene containing from 40% to 70% of derived units of propylene or C4-C10 ?-olefin(s) or of combinations thereof; 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 CH2?CHT wherein T is a C3-C10 alkyl group; having the following properties: i) density (with ISO 1183) comprised in the range from 0.850 to 0.