A process for producing rigid PUR/PIR foams comprising A1 an isocyanate-reactive component, A2 a flame retardant, A3 a blowing agent, A4 a catalyst, A5 optionally auxiliaries and additives, and B an organic polyisocyanate component. Component A1 comprises a triurethane triol A1.1 and a compound A1.2 selected from the group consisting of polyether polyol, polyester polyol, polyether carbonate polyol, and polyether ester polyol. Also disclosed is a rigid PUR/PIR foam, an insulating material, a composite element, and a mixture.

The present invention provides porous polymer coatings having adhesive and air flow resistive properties. The porous polymer coating comprises a polymeric foam having a void fraction of greater than about 15% and an air permeability greater than 3 cubic feet per minute per square foot as measured based on ASTM D737-04, wherein the polymeric foam comprises a clay and/or pigment optionally having an aspect ratio of about 2:1, 5:1, or 10:1 to about 20:1, 50:1, or 100:1. In some embodiments, the porous polymer coating comprises a chlorinated polymer and a fluorochemical.

Disclosed are a process of producing a polyurethane foam product, a polyurethane foam product pre-mix, polyurethane foam product formulation, and a polyurethane foam product. The process of producing the polyurethane foam product includes contacting a halohydrin component with a polyurethane foam product pre-mix. The polyurethane foam product pre-mix includes the halohydrin component. The polyurethane foam product formulation includes a polyol component, an isocyanate component, and a halohydrin component. The polyurethane foam product is formed by the pre-mix having the halohydrin component.

This invention relates to processes of preparing thermoplastic foams comprising HFO-1336mzz(E). An exemplary process comprises preparing a thermoplastic foam comprising HFO-1336mzz(E) in the presence of a blowing agent which is HFO-1336mzz(Z) and a co-blowing agent, wherein polymer is heated to a temperature sufficient to isomerize at least a portion of the HFO-1336mzz(Z) to the HFO-1336mzz(E). Thermoplastic foams and foamable compositions comprising HFO-1336mzz(E) are also provided.

A hydrofluoroolefin is represented by the following general formula (A): in which, Rf.sub.1 and Rf.sub.2 are (i) independently linear or branched fluoroalkyl groups having with 1-8 carbon atoms and optionally include one or more catenated heteroatoms; or (ii) bonded together to form a ring structure having 4-8 carbon atoms and optionally include one or more catenated heteroatoms; is CF.sub.3, F, H; is F or H; is CF.sub.3, F, CF.sub.2H, CFH.sub.2, or CH.sub.3, and the compound includes a total of 1-4 H atoms; and with the provisos that at least one of and is F or H; when is CF.sub.3 or F, at least one of and is H; when is CH.sub.3, at least one of and is F, and when is CF.sub.3, then is H and is F; wherein at least one of Rf.sub.1 and Rf.sub.2 have two or more carbon atoms. ##STR00001##

The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, semi-rigid and rigid polyurethane and polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.

The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, rigid polyurethane foams and rigid polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.

A flexible material for thermal and acoustical insulation comprising an expanded polymer (blend) based on at least one elastomer, wherein expansion is achieved by decomposition of a mixture of at least two chemical blowing agents, comprising the exothermic chemical blowing agent 4,4-Oxybis(benzenesulfonyl hydrazide) (OBSH) and at least one endothermic blowing agent.

A thermoplastic polyurethane elastomer material with micro air holes and preparation thereof are provided. The formula of the thermoplastic polyurethane elastomer material with micro air holes comprises the following ingredients in percentage by weight: 0.1-97% of support polymer material, 0.1-97% of pressure-resistant slow-rebound polymer material, 0.01-0.5% of nucleator and 0.1-10% of foaming agent. The support polymer material is a polymer material with a high molecular weight, high hardness, high crystallization or high polarity. The pressure-resistant slow-rebound polymer material is a polymer material with a low molecular weight, low hardness, crystallization as low as to amorphous state or low polarity/no polarity, corresponding to the support polymer material.

The shelf life of B-side compositions comprising a polyol, a surfactant, a blowing agent, an organometallic or metal salt catalyst wherein the metal of the catalyst comprises Zn or Bi, and from 1 to 10 weight percent water is improved by the addition of a thiol compound.