The process according to claim 1 wherein the at least one aralkanoic acid is a single aralkanoic acid.ģ. A process for preparing a modifiable poly (aralkyl ketone) having at least one active methylene group in the main chain comprising reacting at least one aralkanoic acid in the presence of an alkane or aryl sulfonic acid and a condensing agent.Ģ. Process for adding furyl-2-methylidene UV light absorbers to poly(ethylene terephthalate)ġ. PHOTOSENSITIVE POLYIMIDE AND NEGATIVE TYPE PHOTORESIST COMPOSITION CONTAINING THE SAME Implantable biomedical devices including biocompatible polyurethanesĪROMATIC HALOSULFONYL ISOCYANATE COMPOSITIONS Process for the preparation of polyaddition compounds
Manufacturing method for polyimide resin containing a norbornene groupīIODEGRADABLE ELASTOMERS PREPARED BY THE CONDENSATION OF AN ORGANIC DI-, TRI- OR TETRA-CARBOXYLIC ACID AND AN ORGANIC DIOL TRANSPARENT POLYIMIDE FILM HAVING IMPROVED SOLVENT RESISTANCE