Patents Assigned to Nitto Boseki Co., Limited
  • Process for producing novel photosensitive resins
    Patent number: 4701497
    Abstract: A process for producing a novel photosensitive resin having cinnamic groups, comprising reacting a polyallylamine represented by the general formula (I) ##STR1## (wherein n is at least 10) or an inorganic acid salt thereof with a compound having a cinnamic group in the presence of a solvent. The process is free from drawbacks as experienced in the production of a conventional photosensitive resin (e.g. polyvinyl cinnamate), such as formation of by-products during the polymerization of a monomer (e.g. vinyl cinnamate).
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: October 20, 1987
    Assignee: Nitto Boseki Co., Limited
    Inventors: Hajime Serizawa, Keizo Ogihara, Kiyoshi Shimizu, Susumu Harada