H.b. Fuller Licensing & Financing Inc.

H.b. Fuller Company

Kevin J Reid

John M Zimmel

David B Malcolm

Kang Yang

Michelle B Acquaye

Albert M Giorgini

James A Hagquist

Anne E Spinks

Gary J Haider

Nathanael Hill

Merilee M Reski

Jacqueline J Jarocz

A moisture curable hot melt adhesive composition includes a polyurethane prepolymer, optionally a tackifying resin, and optionally a thermoplastic polymer. The polyurethane prepolymer includes a reaction product of an amorphous polyester polyol, a polyisocyanate, and a crystalline monofunctional alcohol that has a melting point of no less than about 80&#xb0; C.

Moisture curable hot melt adhesive composition

Reactive hot melt polyurethane adhesives are useful in the graphic arts area, and in particular, for bookbinding applications such as casemaking, casing-in, gluing-off or thread-securing, facing, slip cases, lining-up, tightbacking, and bonding sides and joints; and for puzzle and gameboard lamination.

Bookbinding case-making applications utilizing polyurethanes

A hot melt curing urethane adhesives with heat stability, green bond strength and fully cured bond strength that are surprisingly compatible in production and use. The reactive hot melt adhesive composition includes a composition including an isocyanate compound; a polyester-polyol compound; a reactive tackifying resin including non-polar polyols; and a thermoplastic polymer. The components of the adhesive composition cooperate in at least some embodiments to form a hot melt compatible adhesive composition that has substantial initial green strength, substantial cured bond strength, chemical and heat resistance when cured, extended pot life, long open times, high heat resistance, (i.e., high PAFT), and good adhesion to plastics.

Reactive hot melt adhesive

This invention relates to a one-part thermoplastic moisture cure polyurethane composition, comprising a) at least one polyurethane prepolymer component; and b) at least one thermoplastic component. This composition is especially useful in the window area as a sealant.

Thermoplastic moisture cure polyurethanes

Bookbinding applications utilizing warm melt polyurethanes

A polyisocyanurate composition suitable for use as a paintbrush potting compound which does not foam at bristle interfaces, rapidly penetrates bristle bundles and cures rapidly to a highly solvent resistant embedment with good adhesion to both bristle and ferrule materials, comprises:

Isocyanurate embedment compound

Metal casing structures for windows, doors frames and the like which employ a cured polyurethane thermal break produced from a liquid curable formulation catalyzed by certain tertiary amines, especially a diazabicyclic compound, between respective interior and exterior facing segments of the casing have much greater resistance to debonding of the break on thermal cycling than do casings manufactured using prior art formulations catalyzed with metal compounds.

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White Bear Lake, MN, United States of America

Kevin J Reid