# US 11,028,295 B2 · Wood adhesive formulation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,295 B2 - Document ID: US11028295B2 - Status: Granted - Kind: B2 - Application number: 14/370,064 - Filed: 2013-01-08 - Published: 2014-12-11 - Granted: 2021-06-08 - Earliest claimed: 2012-01-26 - Assignees: Huntsman International LLC - Applicants: Huntsman International LLC - Inventors: Servaas Holvoet; Daniele Pratelli; Christopher Phanopoulos - Web page: https://patentgrep.com/patent/US11028295B2 ## CPC - C09J 161/24: with urea or thiourea - C08G 18/283: {Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds} - C08G 18/4027: {Mixtures of compounds of group C08G18/54 with other macromolecular compounds} - C08G 18/4837: {and other oxyalkylene units} - C08G 18/544: {with nitrogen compounds} - C08G 18/7664: {containing alkylene polyphenyl groups} - C08L 97/02: Lignocellulosic material, e.g. wood, straw or bagasse {(manufacture of articles made from lignocellulosic material by dry processes B27N)} - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The invention relates to a formulation comprising: —a first component which is formed from at least one isocyanate and at least one amino resin, wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof; and —a second component comprising at least one polyether, wherein said polyether comprises at least one ethylene oxide moiety and at least one isocyanate reactive group selected from the group comprising hydroxyl, amino, epoxy, and thiol, preferably hydroxyl. ## Claims ### Claim 1 A lignocellulosic body consisting of: (i) a plurality of lignocellulosic materials, (ii) a two component adhesive formulation applied onto the lignocellulosic materials for bonding the lignocellulosic materials, the two component adhesive formulation consisting of: (a) a first adhesive component which is formed from at least one isocyanate selected from hexamethylene diisocyanate, m-phenylene diisocyanate, p-phenylene diisocyanate, tolylene-2,4-diisocyanate, tolylene-2,6-diisocyanate, polymeric MDI, chlorophenylene-2,4-diisocyanate, naphthylene-1,5-diisocyanate, diphenylene-4,4′-diisocyanate, 4,4′-diisocyanate-3,3′-dimethyl-diphenyl, 3-methyl-diphenylmethane-4,4′-diisocyanate, diphenyl ether diisocyanate, cyclohexane-2,4-diisocyanate, cyclohexane-2,3-diisocyanate, 1-methylcyclohexyl-2,4-diisocyanate, 1-methylcyclohexyl-2,6-diisocyanate, bis-(isocyana-tocyclohexyl)methane, 2,4,6-triisocyanatotoluene, 2,4,4-triisocyanatodiphenylether, isophorone diisocyanate, butylene diisocyanate, trimethylhexamethylene diisocyanate, isocyanatomethyl-1,8-octane diisocyanate, tetramethylxylene diisocyanate, 1,4-cyclohexanediisocyanate, tolidine diisocyanate, and a mixture thereof and 64% by weight to 95% by weight, based on 100% by weight of the formulation of at least one amino resin, wherein said amino resin is the condensation product of an aldehyde with a compound selected from the group comprising urea, melamine, benzoguanamine, glycoluril, acetoguanamine and mixtures thereof; and (b) a second adhesive component comprising at least one polyether compound, acting as a compatibilizing agent, having an average molecular weight of from 3500 to 40000 and an average nominal functionality of 2 to 6, wherein said polyether compound comprises at least 15% by weight ethylene oxide groups based on 100% by weight of the at least one polyether compound and at least one ethylene oxide moiety and at least two isocyanate reactive groups selected from the group consisting of hydroxyl, amino, epoxy, and thiol, and wherein the polyether compound is a reaction product of ethylene oxide and a polyfunctional initiator and, optionally, at least one other cyclic oxide; and wherein the ethylene oxide content to isocyanate is of at least 10% by weight based on the combined weight of the at least one isocyanate and the at least one polyether; and (iii) optionally, an additive selected from the group comprising a hardener, a surfactant, a release agent, a wax, or a pigment. ### Claim 2 (depends on 1) The lignocellulosic body according to claim 1, wherein said amino resin is the condensation product of a compound as defined in claim 1 with an aldehyde selected from the group comprising formaldehyde, acetaldehyde, crotonaldehyde, acrolein, benzaldehyde, and furfural. ### Claim 3 (depends on 1) The lignocellulosic body according to claim 1, wherein the polyfunctional initiator is selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, cyclohexane dimethanol, resorcinol, bisphenol A, glycerol, trimethylolopropane, 1,2,6-hexantriol, pentaerythritol and mixtures thereof. ### Claim 4 (depends on 3) The lignocellulosic body according to claim 3, wherein the at least one other cyclic oxide is propylene oxide. ### Claim 5 (depends on 1) The lignocellulosic body according to claim 1, wherein the at least one isocyanate is present in an amount of at least 0.5% by weight based on 100% by weight of the total adhesive formulation. ### Claim 6 (depends on 1) The lignocellulosic body according to claim 1, wherein the at least one polyether is present in an amount of at least 0.01% by weight based on 100% by weight of the total adhesive formulation. ### Claim 7 (depends on 1) The lignocellulosic body according to claim 1, wherein the adhesive formulation has an ethylene oxide content greater than 30% by weight based on the combined weight of the at least one isocyanate and the at least one polyether. ### Claim 8 (depends on 1) The lignocellulosic body according to claim 1, wherein the additive is present in an amount of at least 0.01% by weight based on the total adhesive formulation. ### Claim 9 (depends on 1) The lignocellulosic body according to claim 1, where the additive is an ammonium salt.