The Dow Chemical Company

Frank L Oaks

Robert F Harris

Eric S Moyer

Edward W Rutter, Jr

Photodefineable cyclobutarene compositions are disclosed. These polymer compositions are useful in composites, laminates, membranes, films, adhesives, coatings, and electronic applications such as multichip modules and printed circuit boards. An example of such photodefineable cyclobutarene compositions is a mixture of a photosensitive agent such as 2,6-bis(4-azidobenzylidene)-4-methylcyclohexanone and a cyclobutarene such as oligomeric divinyltetramethyldisiloxane bisbenzocyclobutane.

Photodefineable cyclobutarene compositions

An oligomerized cyclobutarene containing 80 weight percent or more of oligomers of a degree of polymerization of three or more.

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San Carlos, CA, United States of America

Frank L Oaks