Patent ID: 6132548
Filing Date: 2000-10-17
Classification: C08F

Abstract:
A process for producing a bonded assembly from two substrate components, at least one of the substrate components being transparent to UV light, the process comprising:applying a composition comprising:a) a monomer component comprising at least one member selected from the group consisting of 4-allyloxystyrene, 4-methallyloxystyrene, 4-crotyloxystyrene, 4-prenyloxystyrene, 2-allyloxystyrene, 2-methallyloxystyrene, 2-crotyloxystyrene or 2-prenyloxystyrene,b) a substantially linear polymer component having a formula consisting essentially of repeat units selected from the group consisting of ##STR5## where R.sub.2, R.sub.2 and R.sub.3 are H; orR.sub.1 is methyl and R.sub.2 and R.sub.3 are H; orR.sub.1 and R.sub.2, are H and R.sub.3 is methyl; orR.sub.1 is H and R.sub.2 and R.sub.3 are methyl, andc) a cationic photoinitiator,the polymer component being dissolved in the monomer component and thecomposition being storage-stable, to at least one of the substrate components;joining the two substrate components in desired alignment to produce ajoined assembly;irradiating the joined assembly with UV light through said at least one transparent substrate component to polymerize said monomer component, thereby producing a fixtured assembly of the two substrate components; and subsequently,heating the fixtured assembly to a temperature and for a time sufficient to cause rearrangement of the polymerized composition to a colored B-stage crosslinked polymer.