A (super)hydrophobic isocyanate based organic aerogel/xerogel/cryogel having a water contact angle of at least 90 comprising: a cross-linked porous network structure made of polyurethane and/or polyisocyanurate and/or polyurea, and hydrophobic compounds having before the gelling step at least one isocyanate-reactive group and no isocyanate groups
Characterized in that said hydrophobic compounds are covalently bonded within the porous network of the aerogel/xerogel/cryogel and wherein said bondings are created during the gelling step of the formation of the isocyanate based organic aerogel/xerogel/cryogel cross-linked porous network structure.

Curable composition obtained by combining and mixing an epoxy resin composition comprising an epoxy resin, a monool and/or polyol and a compound comprising a carboxamide group, and a polyisocyanate composition comprising a polyisocyanate, a lithium halide and a urea compound, wherein the number of moles of lithium halide per isocyanate equivalent ranges of from 0.0001-0.04 and the number of urea+biuret equivalents per isocyanate equivalent of from 0.0001-0.4. The epoxy resin composition is claimed as well.

A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.

A novel phosphate polyol formulation is described, comprising a polyester polyol, a flame retardant comprising a phosphate polyol, a blowing agent, a catalyst, a surfactant, and a fire-retardant aromatic isocyanate. A further embodiment includes a phosphorus compound, such as a phosphate, a phosphate ester, or an alkyl phosphate such as triethyl phosphate.

The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.

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.

A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an NCO index of more than 300 and less than 700.

A polyisocyanurate foam insulation product includes polyisocyanurate foam produced from reacting an isocyanate and a polyol blend having a functionality of at least 2.2. The isocyanate and the polyol blend are reacted so that the polyisocyanurate foam has an isocyanate index equivalent with or greater than 300. The polyisocyanurate foam includes a fire retardant and includes between 0.02 and 0.45 weight percent of a zinc salt compound. The foam insulation board exhibits a flame spread of no greater than 25 and a smoke index of no greater than 50 when exposed to flame conditions in accordance with an ASTM E-84 test.

The present invention relates to a polyisocyanurate plastic obtainable by catalytic trimenzation of a polyisocyanate composition A) which contains oligomeric polyisocyanates and is low in monomeric diisocyanates, where the isocyanurate structure content in the polyisocyanate composition A) is at least 50 mol %, based on the sum total of the oligomeric structures from the group consisting of uretdione, isocyanurate, allophanate, biuret, iminooxadiazinedione and oxadiazinetrione structure that are present in the polyisocyanate composition A). The present invention further relates to a transparent element comprising or consisting of the polyisocyanurate plastic. The invention likewise relates to a process for producing the polyisocyanurate plastics.

A process for producing a polyester polyol includes the steps of: (a) preparing a diol composition which includes a C.sub.2-C.sub.9 short-chain diol component and a diol monomeric component of Formula (I) defined herein in a weight ratio of the C.sub.2-C.sub.9 short-chain diol component to the diol monomeric component of Formula (I) of larger than 0 and less than 1.6, (b) preparing a dicarbonyl composition which includes one selected from the group consisting of a dicarboxylic acid component, a dicarboxylic anhydride component, and a combination thereof, and (c) subjecting the diol composition and the dicarbonyl composition to a polycondensation reaction.