Liquid purification or separation – Casing divided by membrane into sections having inlet – Membrane secured with adhesive of specified composition
Patent
1997-12-09
1999-11-02
Walker, W. L.
Liquid purification or separation
Casing divided by membrane into sections having inlet
Membrane secured with adhesive of specified composition
156106, 156305, 264DIG48, B01D 6300
Patent
active
059763710
ABSTRACT:
The present invention discloses two-part isocyanate-based adhesive compositions, free of inorganic pigments and fillers, which cure to form polyurethane-based adhesives having an opaque-white appearance greater than about L* 80 and a shore A hardness greater than about 50. Such materials are particularly useful for the preparation of bonded filter. The invention further describes a method for the preparation of bonded filters using these compositions and the bonded filters thereof. Additionally, these compositions can also be used as two part general household adhesives and/or caulkings wherein the two liquid parts are metered together just prior to application using a dispensing apparatus including, but not limited to, glue guns having two containers (e.g., tubes); one tube, for example, containing polyol and diol components and the second containing polyisocyanate.
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Giorgini Albert M.
Hagquist James A.
Cecil Terry K.
Curtis Carmen Pili
H.B. Fuller Licensing & Financing Inc.
Quan Nancy N.
Walker W. L.
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