A two-component solventless polyurethane adhesive composition including (A) at least one isocyanate component and (B) at least one polyol component. The isocyanate component (A) comprises an isocyanate prepolymer that is the reaction product of (Ai) a polyisocyanate and (Aii) an isocyanate-reactive component; wherein the isocyanate-reactive component comprises (Aiia) at least one polyol having a functionality greater than two, (Aiib) at least one aromatic polyester polyol having a functionality of greater than two, and (Aiic) at least one hydrophobic polyol. The polyol component (B) comprises (Bi) at least one polyether polyol having a functionality greater than two, (Bii) at least one aromatic polyester polyol transesterified with a natural oil, and (Biii) at least one phosphate ester polyol. A method for forming a laminate is also disclosed, the method comprising the steps of: (I) mixing the above reactants (components (A) and (B)) to form a solventless adhesive composition, (II) applying a layer of the solventless adhesive composition to a surface of a first substrate, (III) bringing the layer of the solventless adhesive composition on the first substrate into contact with a surface of a second substrate to form a laminate, and (IV) curing the solventless adhesive composition. A laminate comprising the above solventless adhesive composition is also disclosed.

The present disclosure provides a process for forming a laminate. The process includes (A) uniformly applying an isocyanate component to a first substrate, the isocyanate component containing an isocyanate compound; (B) uniformly applying an isocyanate-reactive component to a second substrate, the isocyanate-reactive component containing an amine-terminated compound; (C) bringing the first substrate and the second substrate together, thereby mixing and reacting the isocyanate component and the isocyanate-reactive component to form an adhesive composition between the first substrate and the second substrate; (D) curing the adhesive composition to bond the first substrate and the second substrate; and (E) forming the laminate.

There is described an isocyanate-based polymer foam having the combination of: (i) a Limiting Oxygen Index (LOI) of greater than or equal to 26.5% when measured pursuant to ASTM D2863-17a, and (ii) a Total Volatile Organic Content (TVOC) when measured pursuant to VDA 277 of less than or equal to 225 μg/g C. Preferably, the foam is produced from a foamable composition comprising: an isocyanate; a reactive compound containing: (1) at least one hydrogen which is reactive with the isocyanate, and (2) one or both of a halogen and a phosphate moiety; a blowing agent comprising one or both of water and carbon dioxide; and a catalyst; wherein the reactive compound is present in an amount in the range of from about 30% to about 95% of total ISO equivalents excluding water, if present in the foamable composition.

Solvent-based adhesive compositions are disclosed herein. In some embodiments, the solvent-based adhesive compositions include (A) an isocyanate component comprising an isocyanate curing agent and (B) a hydroxyl component comprising a polyester polyol, a polyether polyol, and a phosphate ester compound. The isocyanate curing agent of the isocyanate component (A) crosslinks the components of the hydroxyl component. In some embodiments, the phosphate ester compound has the structure (I): (I) wherein R1 is any organic group. Methods for preparing solvent-based adhesive compositions are also disclosed. The methods include providing an isocyanate component (A) comprising an isocyanate curing agent, providing a hydroxyl component (B) comprising a polyol blend, comprising a polyester polyol and a polyether polyol, and a phosphate ester compound, curing the hydroxyl component (B) with the isocyanate component (A) at a mix ratio ((A):(B), by weight) of from 100:8 to 100:15, thereby forming the solvent-based adhesive composition. ##STR00001##

A two-component solventless polyurethane adhesive composition including (A) at least one isocyanate component and (B) at least one polyol component. The isocyanate component (A) comprises an isocyanate prepolymer that is the reaction product of (Ai) a polyisocyanate and (Aii) an isocyanate-reactive component; wherein the isocyanate-reactive component comprises (Aiia) at least one polyol having a functionality greater than two, (Aiib) at least one aromatic polyester polyol having a functionality of greater than two, and (Aiic) at least one hydrophobic polyol. The polyol component (B) comprises (Bi) at least one polyether polyol having a functionality greater than two, (Bii) at least one aromatic polyester polyol transesterified with a natural oil, and (Biii) at least one phosphate ester polyol. A method for forming a laminate is also disclosed, the method comprising the steps of: (I) mixing the above reactants (components (A) and (B)) to form a solventless adhesive composition, (II) applying a layer of the solventless adhesive composition to a surface of a first substrate, (III) bringing the layer of the solventless adhesive composition on the first substrate into contact with a surface of a second substrate to form a laminate, and (IV) curing the solventless adhesive composition. A laminate comprising the above solventless adhesive composition is also disclosed.

An iso(thio)cyanate composition for an optical component has excellent storage stability. The iso(thio)cyanate composition includes an iso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule, a phosphoric acid ester compound represented by general formula (1), and a phosphoric acid ester compound represented by general formula (2). A total amount of the phosphoric acid ester compounds is 1 ppm or greater and less than 25,000 ppm, based on the mass of the iso(thio)cyanate compound. A molar ratio of the phosphoric acid ester compound represented by general formula (1) and the phosphoric acid ester compound represented by general formula (2) is 30/70 to 70/30.

The invention relates to compounds and methods for extending the pot life of mixtures of isocyanates and isocyanate-reactive compounds when using acidic phosphoric acid ester as a mould release agent.

The present invention relates to a process for preparing a porous material, at least comprising the steps of providing a mixture (I) comprising a composition (A) comprising components suitable to form an organic gel and a solvent (B), reacting the components in the composition (A) in the presence of the solvent (B) to form a gel, and drying of the gel obtained in step b), wherein the composition (A) comprises a catalyst system (CS) at least comprising a catalyst component (C1) selected from the group consisting of ammonium salts and a carboxylic acid as catalyst component (C2). The invention further relates to the porous materials which can be obtained in this way and the use of the porous materials as thermal insulation material and in vacuum insulation panels and vacuum insulation systems, in particular in interior or exterior thermal insulation systems as well as for the insulation of refrigerators and freezers and in water tank or ice maker insulation systems.

A process for preparing a porous material, including the steps of providing a mixture (I) containing a composition (A) containing components suitable to form an organic gel and a solvent (B), reacting the components in the composition (A) in the presence of the solvent (B) to form a gel, and drying of the gel obtained in step b), wherein the composition (A) contains at least one compound (af) containing phosphorous and at least one functional group which is reactive towards isocyanates and at least one component (au) selected from the group consisting of urea, biuret, and derivatives of urea and biuret.

A process for producing polyurethane foams by reaction of the components: A, B, C, and D. Component A comprises a polyol component, comprising A1 which is 40 to 100 parts by weight of polyether carbonate polyol and A2 which is 0 to 60 parts by weight of polyether polyol. Component B can comprise B1 a catalyst, and B2 optionally auxiliary and additive substances. Component C can comprise water and/or physical blowing agents. Component D can comprise di- and/or polyisocyanates. Production is carried out at an index of 90 to 120 and in the presence of a component K, wherein the component K comprises a reaction product of alkoxylated phosphoric acid with 1,3-dicarbonyl compound or carboxylic anhydride. A polyurethane foam and a method for producing articles are also disclosed.