Patents by Inventor Michael N. Mang

Michael N. Mang 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: 5814373
    Abstract: Hydroxy-functional polyethers having a "cardo" diphenylene group in their backbones are prepared by contacting at least one dinucleophilic monomer with at least one diglycidyl ether of a cardo bisphenol, such as bis(hydroxyphenyl)fluorene, phenolphthalein, or phenolphthalimidine or a substituted cardo bisphenol, such as a substituted bis(hydroxyphenyl)fluorene, a substituted phenolphthalein or a substituted phenolphthalimidine, under conditions sufficient to cause the nucleophilic moieties of the dinucleophilic monomer to react with epoxy moieties to form a polymer backbone containing pendant hydroxy moieties and ether, imino, amino, sulfonamido or ester linkages. These polyethers possess a combination of high barrier to oxygen transmission (i.e., oxygen transmission rate less than 10.0 cm.sup.3 -mil/100 in.sup.2 -atm-day to oxygen) and high heat resistance (i.e., Tg above 120.degree. C.).
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: September 29, 1998
    Assignee: Dow Chemical Company
    Inventors: Jerry E. White, H. Craig Silvis, Stephen E. Bales, Michael N. Mang, Muthiah N. Inbasekaran
  • Patent number: 5780582
    Abstract: Hydroxy-functional polyester oligomers are prepared by contacting a hydroxy-functional aliphatic dicarboxylic acid or a mixture of dicarboxylic acids containing hydroxy-functional aliphatic diacids, with a diglycidyl ether or diglycidyl ester in the presence of an onium catalyst in an ether solvent under conditions suitable for forming the oligomer. The oligomers can be used as hot melt adhesives, adhesive tackifiers, plasticizers, heat-curable adhesives and heat-curable coatings. Some of these materials are biodegradable and are therefore suitable for application to compostable end products.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: July 14, 1998
    Assignee: The Dow Chemical Company
    Inventors: David S. Wang, Michael N. Mang, Jerry E. White, John M. Beckerdite
  • Patent number: 5776374
    Abstract: The present invention relates to crosslinkable thermoplastic compositions comprising a plurality of crosslinkable moieties, capable of undergoing addition polymerization, incorporated by functionalization of the precursor poly(hydroxy ethers). The poly(hydroxy ethers) comprise recurring moieties derived from aromatic dihydroxy compounds. The crosslinkable polymeric compositions are crosslinked to obtain crosslinked thermoset polymeric compositions of the invention. The polymeric compositions of the inventions can be suitably used either as an active guiding layer, and/or as a NLO active upper and lower cladding layers in an electro-optic device. The polymeric compositions can also be used as non-NLO polymers for the upper and lower cladding layers, prior to orientation by the application of an electric field.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: July 7, 1998
    Assignee: The Dow Chemical Company
    Inventors: Mark D. Newsham, Michael N. Mang, Robert J. Gulotty, Jr., Dennis W. Smith, Jr.
  • Patent number: 5686551
    Abstract: Thermoplastic hydroxy ether polymers containing inertly substituted or unsubstituted stilbene and ether linkages in the backbone chain and pendant hydroxyl moieties are prepared by reacting (a) an inertly substituted or unsubstituted dihydroxy-stilbene with (b) a diglycidyl ether and, optionally, (c) a difunctional monomer under conditions sufficient to cause the hydroxyl moieties to react with the epoxy moieties to form ether linkages and pendant hydroxyl moieties. The polymers exhibit excellent oxygen barrier properties and are useful in packaging oxygen-sensitive materials.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: November 11, 1997
    Assignee: The Dow Chemical Company
    Inventors: Jerry E. White, H. Craig Silvis, Michael N. Mang, Shari L. Kram, Robert E. Hefner, Jr.
  • Patent number: 5496910
    Abstract: A biodegradable hydroxy-functional polyester is prepared by contacting a hydroxy-functional aliphatic dicarboxylic acid or a mixture of dicarboxylic acids containing hydroxy-functional aliphatic diacids, with a diglycidyl ether or diglycidyl ester in the presence of an onium catalyst in an ether solvent under conditions suitable for forming the polyester.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: March 5, 1996
    Assignee: The Dow Chemical Company
    Inventors: Michael N. Mang, Jerry E. White, Paul E. Swanson
  • Patent number: 5466397
    Abstract: Disclosed are compounds containing substituted pyrazoline which exhibit nonlinear optical activity on orientation and to oriented polymeric compositions comprising moieties derived therefrom in the backbone of the polymer. Also disclosed are the processes for making the oriented polymeric composition of the invention.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: November 14, 1995
    Assignee: The Dow Chemical Company
    Inventors: Stephen E. Bales, David J. Brennan, Robert J. Gulotty, Jr., Muthiah N. Inbasekaran, Michael N. Mang, Mark D. Newsham
  • Patent number: 5445854
    Abstract: The present invention discloses oriented optical epoxy compositions comprising a reaction product of arylhydrazones with a monomer copolymerizable therewith and to oriented crosslinked polymeric composition comprising the reaction product of an epoxy arylhydrazone or the epoxy composition of the invention with a curing agent. The present invention also discloses processes for making the said compositions.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: August 29, 1995
    Assignee: The Dow Chemical Company
    Inventors: Mark D. Newsham, Muthiah N. Inbasekaran, Michael N. Mang
  • Patent number: 5386002
    Abstract: Polyetherimides, polyesterimides, poly(ester etherimides) and poly(carbonate imides) which are thermoplastic, polymeric materials contain divalent bisimides of formula ##STR1## wherein R is independently in each occurrence hydrogen, alkyl of from 1 to 20 carbons, aryl or aralkyl of from 1 to 20 carbons, halogen or NO.sub.2. Novel monomeric bisimides corresponding to the above formula are also disclosed.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: January 31, 1995
    Assignee: The Dow Chemical Company
    Inventors: Muthiah N. Inbasekaran, Daniel J. Murray, Michael N. Mang, James L. Brewbaker
  • Patent number: 5288816
    Abstract: The present invention relates to nonlinear optical materials comprising aminoaryl hydrazones and to nonlinear optical polymeric compositions containing recurring covalently bonded moieties derived from the aminoaryl hydrazones of the invention. The polymeric compositions of the present invention have high glass transition temperatures and exhibit stable nonlinear optical activity at high temperatures over a period of time.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: February 22, 1994
    Assignee: The Dow Chemical Company
    Inventors: Muthiah N. Inbasekaran, Mark D. Newsham, Michael N. Mang
  • Patent number: 5171820
    Abstract: Polyesters having improved barrier to oxygen are normally solid, thermoplastic methylol polyesters having backbone repeating units containing pendent hydroxyl and methylol moieties and divalent organic moieties such as m-phenylene, p-phenylene, and isopropylidene diphenylene. Such polyesters are prepared by reacting diglycidyl esters of aromatic diacids such as diglycidyl terephthalate or diglycidyl ethers of dihydric phenols with diacids such as isophthalic acid.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: December 15, 1992
    Assignee: The Dow Chemical Company
    Inventors: Michael N. Mang, Jerry E. White
  • Patent number: 5138022
    Abstract: Aliphatic polyesters of 3,4'-biphenyldicarboxylic acid and optionally 4,4'-biphenyldicarboxylic acid are prepared by contacting at least one aliphatic diol having from 2 to 12 carbon atoms with a lower alkyl diester or phenolic diester of 3,4'-biphenyldicarboxylic acid and, optionally, a lower alkyl diester or phenolic diester of 4,4'-biphenyldicarboxylic acid, in the presence of a catalyst at about 180.degree. to about 300.degree. C. These polyesters are suitable for use in making fibers, films, three dimensional molded articles, barrier containers and coatings.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 11, 1992
    Assignee: The Dow Chemical Company
    Inventors: Michael N. Mang, James L. Brewbaker
  • Patent number: 5134201
    Abstract: Miscible blends of (1) a thermoplastic methylol polyester having backbone repeating units containing pendent hydroxyl and methylol moieties and divalent organic moieties such as 1,3-phenylene, 1,4-phenylene, 2,6-naphthalene, biphenylene and isopropylidene diphenylene, and (2) a linear, saturated polyester or copolyester of aromatic dicarboxylic acids, such as poly(ethylene-co-1,4-cyclohexanedimethylene terephthalate) (PETG) and poly(ethylene terephthalate) (PET), have improved clarity and exhibit enhanced barrier to oxygen relative to PET and PETG.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: July 28, 1992
    Assignee: The Dow Chemical Company
    Inventors: Gerald F. Billovits, Michael N. Mang, Jerry E. White
  • Patent number: 5089557
    Abstract: Polymeric blends of a styrene/acrylonitrile grafted elastomer, nylon, a compatibilizer resin particularly styrene/acrylonitrile/maleic anhydride copolymer, and a core/shell grafted elastomer having an acid functionalized shell have greatly improved notch sensitivity.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: February 18, 1992
    Assignee: The Dow Chemical Company
    Inventors: David E. Henton, Michael N. Mang