Patents by Inventor Julian Alfred Waters

Julian Alfred Waters has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3948846
    Abstract: A dispersion is described of block copolymer particles in a saturated aliphatic hydrocarbon diluent, the block copolymer consisting of a thermoplastic tertiary butyl styrene polymer block A of molecular weight 10,000-100,000 which is soluble in the diluent, an elastomeric conjugated diene polymer block B of molecular weight 1,000-100,000 which is terminally attached to block A, and a styrene homopolymer or copolymer block C of molecular weight 20,000-1,000,000 which is terminally attached to block B, is insoluble in the diluent and forms at least part of the core of the particles. The particles may be separated from the diluent while retaining their previous molecular organization, i.e. with the insoluble block C present in the core of the particles and the thermoplastic block A remote from the core, and may be converted by hot pressing into shaped articles having impact resistance.
    Type: Grant
    Filed: October 27, 1972
    Date of Patent: April 6, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Julian Alfred Waters