Patents by Inventor Leonard J. Calbo, Jr.

Leonard J. Calbo, Jr. 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).

  • Linear, low-molecular-weight polyester-based polyol
    Patent number: 5023367
    Abstract: This invention relates to a linear, low-molecular-weight polyester-based polyol having terminal primary hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## where n is 1 or 2 and at least 70% by weight is n=1, and m=2-10, said polyol being substantially free of cyclohexane dimethanol.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: June 11, 1991
    Assignee: King Industries, Inc.
    Inventors: Leonard J. Calbo, Jr., Lawrence V. Gallacher
  • Linear, low-molecular-weight polyester-based polyol
    Patent number: 4922002
    Abstract: This invention relates to certain linear, low-molecular-weight polyester-based polyols having at least two hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## wherein R is a moiety derived from a saturated aliphatic polyhydric alcohol; n is 1 or 2, and at least about 50% by weight, of n is n=1; p is 0 to 4 inclusive and m is 2 to 10 inclusive; said polyol being substantially free of any unreacted polyhydric alcohol.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: May 1, 1990
    Assignee: King Industries, Inc.
    Inventors: Leonard J. Calbo, Jr., Lawrence V. Gallacher
  • Process for preparing linear, low molecular weight polyester-based polyol
    Patent number: 4902821
    Abstract: This invention relates to a linear, low-molecular-weight polyester-based polyol having terminal primary hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## where n is 1 or 2 and at least 70% by weight is n=1, and m=2-10, said polyol being substantially free of cyclohexane dimethanol.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: February 20, 1990
    Assignee: King Industries, Inc.
    Inventors: Leonard J. Calbo, Jr., Lawrence V. Gallacher
  • Preparation of linear, low-molecular-weight polyester-based polyols
    Patent number: 4888441
    Abstract: This invention relates to certain linear, low-molecular-weight polyester-based polyols having at least two hydroxyl groups, low viscosity, high solids content and having the structural formula: ##STR1## wherein R is a moiety derived from a saturated aliphatic polyhydric alcohol; n is 1 or 2, and at least about 50% by weight, of n is n=1; p is 0 to 4 inclusive and m is 2 to 10 inclusive; said polyol being substantially free of any unreacted polyhydric alcohol.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: December 19, 1989
    Assignee: King Industries, Inc.
    Inventors: Leonard J. Calbo, Jr., Lawrence V. Gallacher