Patents Assigned to 501 Kabushiki Kaisha Hayashibara Kagaku Kenkyujo
  • Association complex comprising pullulan and polyethylene glycol, and preparation and uses of the same
    Patent number: 4927636
    Abstract: Pullulan forms an association complex with PEG in a hydrous system. The assocation complex, as well as its pullulan and PEG components, exerts a decreased solubility in water. The association reduces or even eliminates the excessively high water-solubility, threading and stickiness of pullulan so that this extends the uses of pullulan and PEG such as those in gradually disintegrable- and sustained release-shaped articles for consumer's products, toiletries, cosmetics, pharmaceuticals and feeds.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: May 22, 1990
    Assignee: 501 Kabushiki Kaisha Hayashibara Kagaku Kenkyujo
    Inventors: Hiromi Hijiya, Toshio Miyake