Method of making spiral wound filtration modules with a curable adhesive composition and modules made thereby
OwnerJoel M. Harris, Christine M. Griese +4inventors
InventorsJOEL M. HARRIS, CHRISTINE M. GRIESE, DORIAN P. NELSON, ALBERT M. GIORGINI, BRIAN W. CARLSON, MICHAEL S. MOREN
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Abstract
A method of making spiral wound filtration modules with a multi-pack, solvent-free curable adhesive composition. The adhesive composition includes a multi-functional Michael donor, a multi-functional Michael acceptor, and a Michael reaction catalyst. The spiral wound filtration modules are also included.
Claims14
A method of making a spiral wound filtration module, the spiral wound filtration module comprising a permeate collection tube and one or more membrane leaf packet(s) wound about the collection lube, each membrane leaf packet having a first membrane leaf and a second membrane leaf and each membrane leaf having a membrane side and a backing side, the method comprising
- preparing a mixture of a multi-pack, solvent-free curable adhesive composition by combining a multi-functional Michael donor, a multi-functional Michael acceptor, and a Michael reaction catalyst,
- applying the mixture of the curable adhesive composition onto at least a portion of the backing side of the first membrane leaf,
- winding the membrane leaf packet(s) around the collection tube, and
- allowing the curable adhesive composition to solidify and cure, thereby bonding the backing side of the second membrane leaf to the backing side of the first membrane leaf.
A spiral wound filtration module, comprising
- a permeate collection tube, and
- one or more membrane leaf packet(s), each membrane leaf packet having a first membrane leaf and a second membrane leaf, each membrane leaf having a membrane side and a backing side, the one or more membrane leaf packet(s) being wound about the collection tube such that the backing side of the second membrane leaf is bonded to the backing side of the first membrane leaf through an adhesive composition that comprises a reaction product of
- a multi-functional Michael donor,
- a multi-functional Michael acceptor, and
- a Michael reaction catalyst.
Dependencies are inferred from the claim text.