Patents by Inventor Allan R. Rothwell

Allan R. Rothwell 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: 7863407
    Abstract: A process for producing terephthalic acid in a TPA facility, polyethylene terephthalate in a PET facility, and containers in a forming facility in which the distance between the TPA facility and the forming facility is less than about 10 miles. There is also described a process for transporting a wet mixture of TPA particles via a convey system to a PET facility. In contrast to traditional processing schemes, the processing steps can be located proximate to each other and can be integrated to eliminate certain intermediate processing steps such as, for example, purification, heating, cooling, and drying.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: January 4, 2011
    Assignee: Eastman Chemical Company
    Inventors: Bruce Roger DeBruin, Allan R. Rothwell
  • Publication number: 20090039568
    Abstract: An integrated facility for the production of polyester and polyester containing products. In one embodiment, the integrated production facility manufactures terephthalic acid (TPA), which is utilized to produce polyethylene terephthalate (PET) and PET containing beverage containers. In contrast to traditional processing schemes, the processing steps of the integrated production facility can be located proximate each other and can be integrated to eliminate certain intermediate processing steps such as, for example, purification, heating, cooling, and drying.
    Type: Application
    Filed: July 11, 2008
    Publication date: February 12, 2009
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Bruce Roger DeBruin, Allan R. Rothwell
  • Patent number: 4300580
    Abstract: A composition and method for grooming the hair are disclosed. The composition is soluble in water and mixtures of alcohol and water, and comprises a linear polyester derived from(A) at least one dicarboxylic acid,(B) at least one diol, at least 20 mole percent of said diol component being a poly(ethylene glycol) having the formulaH--OCH.sub.2 CH.sub.2 --nOHwherein n is an integer of from two to about ten, and(C) a difunctional monomer containing a -SO.sub.3 M group attached to an aromatic nucleus, wherein M is hydrogen or a metal ion.A preferred polyester is prepared from isophthalic acid, the sodium salt of 5-sulfoisophthalic acid, and a glycol component, at least a substantial portion of which is diethylene glycol. The composition may be used in solution, or blended with other compositions for use as a mixture therewith. Conventional additives, such as plasticizers, stabilizers, etc., may also be used.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: November 17, 1981
    Assignee: Eastman Kodak Company
    Inventors: George J. O'Neill, Allan R. Rothwell