Patents by Inventor Alan W. Chiang

Alan W. Chiang 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).

  • Process for reducing draw resonance by heating film after extrusion
    Patent number: 4859379
    Abstract: Films such as LLDPE extruded through a slot-die and drawn under high Deborah number conditions behave like elastic solids and exhibit draw resonance which is alleviated by heating the film after it exits the extruder, e.g., with radiant heaters.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: August 22, 1989
    Assignee: Mobil Oil Corporation
    Inventor: Alan W. Chiang
  • Polypropylene compositions containing bimodal calcium carbonate and a polysiloxane
    Patent number: 4560712
    Abstract: Physical properties of filled polypropylene compositions are improved by using a calcium carbonate filler of bimodal particle size, e.g., a mean of 2 microns and a mean of 5 microns, and a polysiloxane additive. The compositions are useful as food containers.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: December 24, 1985
    Assignee: Mobil Oil Company
    Inventor: Alan W. Chiang