POLYURETHANE ADHESIVES FOR REVERSE OSMOSIS MODULES

An adhesive composition suitable for reverse osmosis modules, the adhesive composition includes (I) a polyurethane composition that includes (A) an isocyanate group-containing pre-polymer comprising a reaction product of (i) castor oil or a derivative thereof; and (ii) a polyisocyanate; and (iii) op...

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Hauptverfasser: KAHLE GORDON, JORDAN, JR. RICHARD D
Format: Patent
Sprache:eng
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Zusammenfassung:An adhesive composition suitable for reverse osmosis modules, the adhesive composition includes (I) a polyurethane composition that includes (A) an isocyanate group-containing pre-polymer comprising a reaction product of (i) castor oil or a derivative thereof; and (ii) a polyisocyanate; and (iii) optionally a second polyol; and (B) an isocyanate-reactive polyol mixture comprising: (i) a polybutadiene polyol; and (ii) a urethane catalyst; and (iii) optionally the second polyol; and (II) a plasticizer wherein the adhesive composition is essentially free from diluent oils and solvents.