Dow Global Technolgoies LLC

Ddp Specialty Electronic Materials Us, LLC

Ddp Specialty Electronic Materials US 8, LLC

Michael R Golden

Andreas Lutz

Glenn G Eagle

Shaoguang Feng

Gary Lee Jialanella

Yan Fei Liu

Eric E Cole

Ming Ming

Robert D J Froese

Lirong Zhou

Andrew R Kneisel

Robert Froese

Jay M Tudor

Raymond F Bis

Alan M Piwowar

Mansour Mirdamadi

Robert D Froese

An adhesive composition including an epoxy-based adhesive polymer and a phosphorous element-containing compound; a process for making the adhesive composition; a process for increasing the corrosion resistance property of the adhesive composition; and a process for bonding a metal substrate with the adhesive composition to increase the corrosion resistance of the substrate by at least 40 percent.

Adhesive formulation

An uncured adhesive contains 2 to 10 weight percent of particles of a semi-crystalline organic material, preferably a polyester having a number-average molecular weight of 2000 to 10,000, a hydroxyl number of 10 to 60, and a melting temperature of 50 to 125&#xb0; C. The adhesive is applied by heating it just prior to application, to melt the particles. After application, the adhesive is cooled to below the melting temperature of the semi-crystalline organic material, and then cured. The process allows the adhesive to be stored and pumped at ambient temperatures, due to the moderate viscosity of the material. Upon melting and re-cooling the semi-crystalline organic material, the adhesive assumes a high yield stress that imparts very good wash-off resistance. In preferred embodiments, the adhesive composition includes an epoxy resin and an epoxy curing agent.

Structural adhesives having improved wash-off resistance and method for dispensing same

Epoxy adhesive compositions contain a heat-activatable catalyst. The heat-activatable catalyst includes a tertiary amine catalyst and a novolac resin that has a weight average molecular weight of at least 3000. One-component epoxy adhesive formulations that contain the heat-activatable catalyst have unexpectedly good storage stability.

Storage-stable heat-activated tertiary amine catalysts for epoxy resins

Reinforcing sheets that exhibit improved adhesion to cold and/or oily substrates have an adhesive layer that contains an epoxy-terminated adduct of an epoxy resin and a rubber that contains a low amount of a nitrile monomer.

Epoxy based reinforcing patches with improved adhesion to oily metal surfaces

Growing community of inventors

Waterford, MI, United States of America

Michael R Golden