H.b. Fuller Licensing & Financing Inc.

H.b. Fuller Company

Peter A Voss

Thomas E Rolando

Christopher M Ryan

Paula Bushendorf

Youlu Duan

Sonja E Stammler

Leonard C Jannusch

Lowell G Lindquist

Douglas Ulen Gwost

Scott W Rhein

George A Papsin, Jr

Craig P Copping

Brenda C Searle

Michael J Dockniak

Paula T Bushendorf

Disclosed is a method of making a laminate that includes a) preparing an adhesive composition, where the preparing includes combining a first part that includes (meth)acrylate functional, polyisocyanate prepolymer, and polyisocyanate monomer, the first part including at least 10% by weight isocyanate functional groups, and a second part that includes polyol, at least one of the first part and the second part includes photoinitiator, b) coating a first flexible substrate with the adhesive composition, c) exposing the adhesive composition to radiation to partially cure the adhesive composition, and d) contacting the adhesive composition with a second flexible substrate.

Laminating adhesive, laminate including the same, and method of making a laminate

The present invention relates to a water based laminating adhesive composition and a method of using thereof. More particularly, the invention relates to a water-based laminating adhesive comprising: a first component comprising at least one aqueous vinyl polymer dispersion (A) comprising the reaction product of i) at least one ethylenically unsaturated monomer; ii) at least one free radical initiator; and iii) optionally, at least one ethylenically unsaturated oligomer; and b) a second component comprising at least one water dispersible polyfunctional aziridine crosslinking agent (B). The adhesive optionally comprises at least one aqueous polyurethane polymer dispersion (C). Improved bonded properties of dry laminated flexible film substrates such as polyolefin, polyester and polyamide, as well as cellophane, metals or paper are obtained.

Dry bond film laminate employing acrylic emulsion adhesives with improved crosslinker

The present invention relates to an aqueous laminating adhesive composition and a method of using thereof. More particularly, the invention relates to an aqueous laminating adhesive composition comprising at least one aqueous polyurethane polymer dispersion (A), at least one aqueous non-polyurethane polymer dispersion (B) prepared by free radical polymerization, and at least one water dispersible polyfunctional crosslinking agent (C). Improved bonded properties of dry laminated flexible film substrates such as polyolefin, polyester and polyamide, as well as cellophane, metals or paper are obtained.

Aqueous laminating adhesive composition and a method of using thereof

The present invention relates to oxygen barrier film structures and a method of using thereof. More particularly, the invention relates to oxygen barrier film structures comprising at least one substrate, a primer layer on at least one surface of the substrate, said primer comprising a mixture of at least one aqueous dispersion of polyurethane (A) and at least one water dispersible crosslinking agent (B); an oxygen and moisture resistant barrier coating onto said primer treated surface of the polymeric substrate; said coating comprising a mixture of at least one aqueous polyvinyl alcohol or its copolymers (C) and at least one crosslinking agent (D). Improved adhesion properties of the barrier coating on substrates such as polyolefin, polyester and polyamide are obtained.

Waterborne primer and oxygen barrier coating with improved adhesion

Water-based polyurethane-urea polymers having reduced migratory contaminants. The polymers are useful laminating adhesives and primers for flexible packaging having indirect food contact.

Water-based polyurethane-urea laminating adhesives and primers

The invention discloses two-component water-based laminating adhesives, comprising aqueous polyurethane dispersions and water dispersible polyisocyanates based on the isocyanurates of hexamethylene diisocyanate, having enhanced machining characteristics. The invention further discloses a method for the preparation of dry-bond laminates having enhanced properties including dry-bond clarity and water resistance.

Two component water-based adhesives for use in dry-bond laminating

A process for the preparation of sulfonated polyurethane-urea polymers, which are useful film to film laminating adhesives for flexible packaging in which the urethane-urea polymer component has no amide linkages. The water-based sulfonated polyurethane prepolymers are processed at reduced temperatures and are substantially free of volatile and/or leachable contaminants.

Laminating adhesives for flexible packaging

Improved bonded properties of dry-laminated flexible film substrates, for instance laminates comprising films of thermoplastics such as polyolefins, polyesters, and polyamides, as well as paper, cellophane, and metals, particularly after exposure to boiling water, are obtained with polyurethane dispersion adhesives when a plural aziridine or carbodiimide compound, or a mixture of a plural epoxy compound with a plural aziridine or carbodiimide compound, is employed as the crosslinker for the adhesive system.

Dry-bonded film laminate employing polyurethane dispersion adhesives

Aqueous polyurethane dispersions used in adhesives for manufacturing laminate structures are provided with improved dispersion properties, which provide improved shelf-life stability of the dispersion and greater transparency and handling characteristics in application machinery for adhesives formulated therefrom, when a tertiary amine is present during an initial polyurethane prepolymer reaction between an isocyanate and a polyol component having acid functional groups. The initial reaction is carried out prior to formation of the dispersion in water.

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Saint Paul, MN, United States of America

Peter A Voss