Dow Global Technolgoies LLC

The Dow Chemical Company

Gurit-Essex Ag

Essex Specialty Products Inc.

Essex Speciality Products, Inc.

Ulrich Tribelhorn

Paul Rohrer

Curtis L Volkmann

Josef S Bühler

Henri L Mispreuve

Simon Waddington

Udo Buchholz

Renate Herger Hassan

Renate R Herger Hassan

Marius A Kuemin

Paul Halg

Gunter Burkart

Jose Mena

Paul Hälg

Hanno R Van Der Wal

Olga Milovanovic-Lerik

Dirk Schwoeppe

Josef S Buehler

A composition comprising in Part 1: a) one or more isocyanate functional components having aromatic isocyanate functional groups; and b) one or more isocyanate functional components having aliphatic isocyanate functional groups; and in Part 2 c) one or more compounds having more than one isocyanate reactive groups: wherein the ratio of aromatic isocyanate functional groups to isocyanate reactive groups is from 0.95 to 1.05 and the ratio of aromatic isocyanate functional groups and aliphatic isocyanate functional groups (total isocyanate groups) to isocyanate reactive groups is from 1.10 to 1.30.

Compositions containing aromatic isocyanate functional components and aliphatic aromatics isocyanate functional components having improved cure speed

The invention is a two part composition comprising:

Two part polyurethane curable composition having substantially consistent G-modulus across the range of use temperatures

The invention is a system, or kit, comprising i) a stable solution or dispersion of a catalyst for the curing of a reactive adhesive system; and in a separate part ii) an uncured reactive adhesive system wherein the catalyst of part i) accelerates the cure of the reactive adhesive system. The reactive adhesive system can be a one or two-part system. In another embodiment, the invention is a method of bonding a reactive adhesive to a substrate comprising: a) contacting a catalyst for the curing of the reactive adhesive in a volatile solvent with the surface of the substrate to which the adhesive will be bonded; b) allowing the volatile solvent to volatilize away; c) contacting a reactive adhesive with the surface treated in step a) and d) allowing the adhesive to cure. This process is performed in the absence of a primer and a film forming agent.

Process for bonding reactive adhesives to substrates

In one embodiment, the invention is an composition comprising:

Composition useful as an adhesive for installing vehicle windows

In one embodiment, the invention is an composition comprising: a) one or more isocyanate functional polyether polyurethane prepolymers; and b) one or more prepolymers of one or more polyisocyanates and one or more polyesters wherein the terminal groups on the polyester polyol polyurethane prepolymer are the residue of a monofunctional polyalkylene glycol (hereinafter capped polyester polyurethane prepolymer) or one or more polyester polyols which are capped with the residue of one or more monofunctional isocyanates (hereinafter isocyanate capped polyesters); wherein the composition is a low viscous paste at temperature of from about 40 to about 80&#xb0; C. and is high viscous paste at a temperature of from about 40&#xb0; C. or less. In a preferred embodiment the composition further comprises c) one or more catalysts for the reaction of isocyanate moieties with hydroxyl groups. In another embodiment the invention is a method of bonding two or more substrates together which comprise contacting the two or more substrates together with a composition according to this invention disposed along at least a portion of the area wherein the substrates are in contact wherein the composition is a low viscous paste. In a preferred embodiment the composition is heated to about 40&#xb0; C. to about 80&#xb0; C. and converted to a low viscous paste prior to contacting it with the one or more substrates.

A stabilizer composition comprising a) an amine and b) a compound selected from aliphatic, non-cyclic monomeric polyunsaturated hydrocarbons and terpenes is useful for stabilizing an organic solvent against degradation.

Stabilizer for organic solvents

The storable modular component, especially a storable glass module, is prepared for assembly by gluing to another component without using an additional assembly glue. Along its edge it displays a profiled bead of a latent reactive adhesive which includes predominantly one or more polyurethanes with blocked isocyanate groups, or one or more polyurethane preproducts consisting of polyols and/or polyamines and encapsuled polyisocyanates, or one or more polyurethanes with radically polymerizable groups. In this case the reaction of the adhesive can be initiated at an activation temperature of 70 to 180&#xb0; C. At the same time, it remains tacky and nonflowing but plastically deformable for a time sufficient for assembly. The stated materials are capable of being activated by being supplied with electrical, electromagnetic or magnetic energy or by infrared radiation. The adhesive may contain magnetizable and/or electrically conductive fillers. The glass module is used for direct glazing of vehicles, especially automobiles.

Heat-activatable modular structural member, its use and process for the direct glazing of vehicles and adhesive therefor

The storable modular component, especially a storable glass module, is prepared for assembly by gluing to another component without using an additional assembly glue. Along its edge it displays a profiled bead of a latent reactive adhesive which includes predominantly one or more polyurethane preproducts consisting of polyols and/or polyamines and encapsuled polyiscocyantes, or one or more polyurethanes with radically polymerizable groups. In this case the reaction of the adhesive can be initiated at an activation temperature of 70 to 180.degree. C. At the same time, it remains tacky and nonflowing but plastically deformable for a time sufficient for assembly. The stated materials are capable of being activated by being supplied with electrical, electromagnetic or magnetic energy or by infrared radiation. The adhesive may contain magnetized and/or electrically conductive fillers. The glass module is used for direct glazing of vehicles, especially automobiles.

Heat activatable modular structural member, its use and process for the

The invention provides a releasable adhesive joint between two elements. The two elements are fixed to each other by means of an adhesive bead or by means of two or more adhesive beads. The adhesive joint comprises a heatable separating member closely fitting the adhesive bead or embedded in the adhesive bead, or closely fitting or embedded in one of the adhesive beads. The heatable separating member looses the adhesion to the closely fitting parts of the adhesive joint or is destroyed upon heating the heatable separating member to a temperature at which the adhesive bead is not yet damaged, thus releasing the parts of the adhesive bead closely fitting the heatable separating member. This releasable adhesive joint is especially useful in fixing vehicle glass panes to a vehicle body frame.

Releasable adhesive joint, a method for establishing a releasable

Disclosed is a water-blown methylene diphenylisocyanate-based polyurethane foam for use in packaging of shock or vibration sensitive goods, and a process for its manufacture from a particular polyol composition. The polyurethane foam exhibits a broad shock/vibration attenuation profile rendering it especially suitable for packaging of light weight articles.

Polyurethane foam for packaging applications

A polyurethane foam is the reaction product of at least one polyol and at least one polyisocyanate in the presence of at least one blowing agent. The polyol contains a polymer polyol dispersion prepared by reacting an epoxy resin with an epoxy hardener in the presence of a liquid polyol.

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Ebikon, Switzerland

Ulrich Tribelhorn