Dow Global Technolgoies LLC

Yee Yang Wang

Barbara J Walter

Syed Zafar Mahdi

Arthur F Cawley

A two-part polyurethane adhesive system includes a resin component A and a curative B. The resin component A includes a monomeric polyisocyanate and a prepolymer. The curative B includes a of ether polyol having a molecular weight of from 3000 to 20,000 and another polyol having 4-8 hydroxyl groups and a molecular weight of from 200 to 1000. The system includes a tin (IV) catalyst, which is contained in the resin component, and a blocked aza-type catalyst, which is contained in the curative. The system has excellent shelf stability, gives an excellent open time at ambient temperatures, and cures rapidly when heated to 65&#xb0; C. or higher.

Two-part polyurethane adhesive for bonding fiber-reinforced plastics

An amine organoborane polymerizable composition and uses for the composition are disclosed. Also disclosed are assemblies and methods of forming those assemblies using the polymerizable composition as an adhesive.

Amine organoborane polymerizable compostion and uses therefor

The present invention provides an improved bonding system including an adhesion promoter that may be used to help adhesively bond two or more components together. The preferred use of the present adhesion promoter is in a transportation vehicle (e.g., automobile), and more particularly in an engine assembly for use in such vehicles. The present invention includes a bonded automobile engine assembly including at least one plastic component, an adhesive that bonds the plastic component to at least one separate component, and an adhesion promoter between the adhesive and the plastic component. Fasteners for attaching components are optionally employed. In one specific example, an intake manifold including a plastic component is bonded to an engine assembly.

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Novi, MI, United States of America

Yee Yang Wang