Minnesota Mining and Manufacturing Company

Robert R Rohloff

Walter C Pearson

An applicator assembly is provided for concurrently dispensing plural flowable component materials in a mixed state. Moreover, the applicator assembly is more versatile and is particularly useful when one or more additional components are to be concurrently dispensed with the basic two component materials. The applicator assembly permits dispensing of additives with basic two part mixtures, and allows the application of three or more part chemical systems. A multi-component applicator assembly is described which is convertible between different component number multi-component arrangements, and includes a barrel assembly having at least one barrel detachably connected to the other barrels, at least two of which are fixed to one another.

Multi-component applicator assembly

Plating resist with improved resistance to extraneous plating

A photopolymerizable composition which is screen-printable and has utility as a solder mask, the composition comprising aryloxyalkyl acrylate monomers or prepolymers, a diacrylate diluent, a monofunctional monomer and a free-radical initiating system.

Solder mask composition

A photosensitized polyamic acid film comprising polyamic acid and a photoinitiator, which is curable to a polyimide upon exposure to actinic radiation in the absence of externally applied heat.

Growing community of inventors

Afton, MN, United States of America

Robert R Rohloff