H.b. Fuller Licensing & Financing Inc.

H.b. Fuller Company

Other

John M Zimmel

William L Bunnelle

Kevin J Reid

David B Malcolm

Kang Yang

Mark G Katsaros

Keith C Knutson

Virginia C Markevka

Gregory J Anderson

Michelle B Acquaye

Elizabeth R Messman

Pamela M Klinkenberg

Marietta B Helmeke

Franz Maitz

Ameara S Mansour

Gary J Haider

Stefan Juers

Alan R Nahkala

Merilee M Reski

Ulrich Holtin

Vera Axer

Brendon J Kryzer

Jeffrey M Swoboda

The present invention relates to a hot melt adhesive composition, comprising based on the total weight of the hot melt adhesive composition: (a) from about 10 to about 50 weight percent of at least one block copolymer; (b) from about 15 to about 50 weight percent of at least one plasticizer; (c) from about 15 to about 50 weight percent of at least one resins; (d) optionally up to 25 weight percent of at least one semicrystalline polyolefin; and (e) optionally up to 10 weight percent of at least one wax. The hot melt adhesive composition of the invention can be used for bonding bundles of metal containers such as cans into packs.

Hot melt adhesive composition for bonding packs of metal containers

The present invention relates to a hot melt moisture cure adhesive composition well suited for bonding porous substrates such as fabric, methods of adhesively bonding substrates and corresponding articles. The adhesive composition exhibits a combination of flexibility, high green strength, low molten viscosity and high heat resistance. In view of these properties, the adhesive is particularly amendable to hot melt adhesive application techniques wherein small individual discrete deposits of adhesive are applied to a substrate. The adhesive composition prepolymer is preferably the reaction product of at least one polyol, at least one polyisocyanate and at least one high molecular weight thermoplastic polyurethane lacking hard segments.

Method of bonding permeable substrates with hot melt moisture cure adhesive having low viscosity and high green strength

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

Bookbinding applications utilizing warm melt polyurethanes

Hot melt adhesive compositions combining the characteristics of thermoplastic hot melt adhesives and reactive adhesives can be prepared by blending a polyester polyether thermoplastic elastomer having the formula ##STR1## wherein Nu is a predominately cyclic nucleus and R.sub.1 is randomly selected from either a C.sub.2-6 alkylene or an amorphous polyether subunit comprising a polyoxyalkylene group with a polyisocyanate prepolymer. The resulting composition is flexible and may be used as an adhesive or as a sealant.

Thermally stable hot melt moisture-cure polyurethane adhesive composition

This invention relates to a hot melt moisture cure polyurethane composition which is the reaction product of a) a polyether polyol formed from a compound selected from the group consisting of ethylene oxide, propylene oxide, 1,2-butylene oxide, 1,4-butylene oxide and mixtures thereof; b) a crystalline polyester polyol having a melting point from about 40.degree. C. to about 120.degree. C.; and c) and at least one polyfunctional isocyanate component.

High moisture vapor transmission hot melt moisture cure polyurethane

Polyester-based hot-melt moisture indicator material for disposable articles containing a polyester, a carboxylic acid and an acid-base indicator.

Hot-melt moisture indicator material for disposable articles

The adhesive properties of a hot melt adhesive, comprising a base polymer and a tackifying resin, can be improved by introducing into the hot melt adhesive an epoxy adduct comprising the reaction product between a compound such as a polymer having at least one active hydrogen and an epoxy compound.

Thermoplastic hot melt adhesive containing epoxy adduct

Hot melt adhesives containing an additive derived from epoxy reactive

Hot melt adhesive compositions combining the characteristics of hot melt adhesives and reactive adhesives can be prepared by blending a thermoplastic polymer, having sufficient structural integrity to provide cohesive strength, with a urethane prepolymer and a tackifying agent. The composition has sufficient green strength to form initial bonds. Additionally, over time, the composition cures to a final rigid, resilient structural adhesive bond.

Thermally stable reactive hot melt urethane adhesive composition having

Reactive hot melt adhesive compositions combining the characteristics of hot melt adhesives and curing urethane adhesive can be prepared by blending an ethylene-vinyl monomer thermoplastic polymer having sufficient structural integrity to provide cohesive strength with a urethane prepolymer and a tackifying agent. The composition has sufficient green strength to form initial bonds. Additionally, over time, the composition cures to a final rigid, resilient quality structural adhesive bond.

Growing community of inventors

Saint Paul, MN, United States of America

John M Zimmel