Green alternative polyurethane adhesive
AssigneeHenkel AG & Co. KGaA
InventorsMary E. Palliardi, Chih-Min Cheng
Life of this patent
Estimating the term…
Abstract
Disclosed is a two-component, liquid curable polyurethane adhesive system comprising an isocyanate reactive part A and an isocyanate functional part B. Either or both parts include substantial amounts of sustainable materials. The inventive mixed adhesive compositions are able to effectively bond to a separation membrane of a filtration apparatus. The invention is also directed to a method of bonding filter assembly components using this two-component curable polyurethane adhesive composition and a filter assembly bonded together using this adhesive composition.
Claims21
A two-part curable polyurethane adhesive composition, including:
- part A comprising an isocyanate reactive component;
- a sustainable reactive rheology modifier, glycerol and optionally additives;
- and
- part B comprising a polyisocyanate and optionally additives;
- wherein the polyurethane adhesive composition comprises at least 60 wt. % sustainable materials by weight of the composition.
A separation apparatus comprising:
- a membrane capable of separating a first constituent from a feed fluid mixture comprising the first constituent and a second constituent;
- and
- a mixed, two component polyurethane adhesive disposed in one or more discrete areas on the membrane, wherein the two-component polyurethane adhesive comprises:
- part A comprising an isocyanate reactive component;
- a sustainable reactive rheology modifier, glycerol and optionally additives;
- and
- part B comprising a polyisocyanate and optionally additives;
- wherein the polyurethane adhesive composition comprises at least 60 wt. % sustainable materials by weight of the composition and the mixed, two component polyurethane adhesive has a percent penetration into the membrane layer prior to curing.
(canceled)
(canceled)
Dependencies are inferred from the claim text.