Patents by Inventor Joseph J. Zupancic

Joseph J. Zupancic 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: 5455208
    Abstract: Carbon-containing black glass compositions of matter having the empirical formula SiC.sub.x O.sub.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: October 3, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Roger Y. Leung, Stephen T. Gonczy, Ming S. Shum, Joseph J. Zupancic
  • Patent number: 5387656
    Abstract: A curing agent for epoxy resins having improved solubility characteristics has the formula ##STR1## where R is --CH.sub.2 C.sub.6 H.sub.4 X or --CH.sub.2 CH.sub.2 C.sub.6 H.sub.4 X,and X is either --H, --CH.sub.3, --OCH.sub.3, --OH, or --NY,and where Y is --H or CH.sub.3.Such substituted cyanoguanidines are soluble in various solvents and do not require the use of undesirable solvents necessary with cyanoguanidine (dicyanodiamide) itself.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: February 7, 1995
    Assignee: AlliedSignal Inc.
    Inventors: Joseph J. Zupancic, Jeffrey P. Conrad
  • Patent number: 5376595
    Abstract: A carbon-containing black glass has the empirical formula SiC.sub.x O.sub.y wherein x ranges from about 0.5 to about 2.0 and y ranges from about 0.5 to about 3.0 and is resistant to oxidation up to a temperature of about 1400.degree. C. The black glass is synthesized by heating a spirosiloxane polymer in a non-oxidizing atmosphere up to a temperature in the range of from about 750.degree. C. to about 1400.degree. C. The polymers are synthesized by reacting the spirosiloxane oligomers: ##STR1## wherein a and b are integers from 0 to 20, preferably 1 to 5, c and d are integers from 2 to 20, preferably 2 to 6, m is an integer from 0 to 10, preferably 0 to 4, and wherein for each silicon atom in the oligomer having R and R' moieties, R is independently selected from the group consisting of alkyl groups from C.sub.1 to C.sub.20, preferably C.sub.1 to C.sub.5, and R' is independently selected from the group consisting of hydrogen, and alkenyl groups from C.sub.2 to C.sub.20, preferably from C.sub.2 to C.sub.5.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: December 27, 1994
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Roger Y. Leung
  • Patent number: 5328976
    Abstract: Carbon-containing black glass compositions of matter having the empirical formula SiC.sub.x O.sub.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: July 12, 1994
    Assignee: Allied-Signal Inc.
    Inventors: Roger Y. Leung, Stephen T. Gonczy, Ming S. Shum, Joseph J. Zupancic
  • Patent number: 5241097
    Abstract: This invention relates to an improved, high-yield process for producing cyclic siloxane in a biphasic reaction solvent mixture comprising an alkane, an alcohol and water.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: August 31, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Jeffrey P. Conrad
  • Patent number: 5185209
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a prepolymer which is an ether of the oligomeric condensation product of a dihydric phenol and formaldehyde having the formula ##STR1##
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: February 9, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Joseph J. Zupancic
  • Patent number: 5185210
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a mixture of prepolymers which are the ethers of the oligomeric condensation product of (a) dihydric phenol and formaldehyde and (b) a dialdehyde and 3 to 4 moles of a phenol.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: February 9, 1993
    Assignee: Allied-Signal Inc.
    Inventor: Joseph J. Zupancic
  • Patent number: 5139880
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a mixture of prepolymers which are the ethers of the oligomeric condensation product of (a) dihydric phenol and formaldehyde and (b) a dialdehyde and 3 to 4 moles of a phenol.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: August 18, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Daniel C. Blazej, Howard A. Fraenkel
  • Patent number: 5120569
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a prepolymer which is an ether of the oligomeric condensation product of a dihydric phenol and formaldehyde having the formula ##STR1##
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: June 9, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Daniel C. Blazej, Howard A. Fraenkel
  • Patent number: 5114741
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a mixture of prepolymers which are ethers of the reaction products of (a) a dicyclopentadiene and a phenol and (b) a dialdehyde and 3 to 4 moles of a phenol.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: May 19, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Daniel C. Blazej, Howard A. Fraenkel
  • Patent number: 5102972
    Abstract: A class of di-ortho-substituted bismaleimides undergo uncatalyzed Michael addition with polyhydric phenols to afford chain-extended bismaleimides having a significantly wider processing window than the non-extended parent. The fully cured resins show improved fracture toughness, generally have comparable or superior dielectric constant and dielectric loss, and show no degradation in other properties such as resistance to moisture, to methylene chloride, and coefficient of thermal expansion.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: April 7, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Raymond J. Swedo, Joseph J. Zupancic
  • Patent number: 5085886
    Abstract: A predetermined pattern of a dielectric polymer is formed on a substrate from a prepolymer which is an ether of the reaction product of a dicyclopentadiene and a phenol.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: February 4, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Daniel C. Blazej, Howard A. Fraenkel
  • Patent number: 5025079
    Abstract: APO-BMI is a chain-extended with certain diamines to provide thermosetting resins retaining the improved properties of APO-BMI resins, but having increased toughness in the cured resins.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: June 18, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Raymond J. Swedo, Donald R. Jamieson, Elaine F. Schumacher, Allyson J. Buehler
  • Patent number: 5018380
    Abstract: The amount of carbon monoxide or oxygen in a gas is measured by determining the change in dielectric properties of a polymer film disposed between two electrodes. A preferred polymer film comprises an organometallic gas carrier interdispersed within an interpenetrating polymer network matrix.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: May 28, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Sandra L. Petty-Weeks, Anthony J. Polak
  • Patent number: 4921923
    Abstract: Oligomeric condensation products of certain diketones and phenols can be end-capped with a vinylbenzyl moiety and certain other moieties, especially alkyl groups, to afford thermosetting resins particularly valuable in making laminated circuit boards. Resins prepared by the reaction of 1 molar proportion of diacetylbenzene with from 3.5 to 4.0 molar proportions of phenol and end-capped with from 50 to 100% vinylbenzyl groups with the remainder being alkyls of 1 through 11 carbon atoms are particularly useful.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: May 1, 1990
    Assignee: Allied Signal Inc.
    Inventors: Joseph J. Zupancic, Jean M. J. Frechet, Andrew M. Zweig, Jeffrey P. Conrad
  • Patent number: 4919808
    Abstract: Semipermeable membranes which may be used in a variety of separation processes such as desalination, sugar separation, etc. are prepared by contacting a porous support backing material such as polysulfone with an aqueous solution of a hydrazine compound. The coated support material is then contacted with an organic solution of an aromatic polycarboxylic acid chloride whereby an interfacial polymerized condensation reaction product is formed on the surface of the support. The thus formed composite is then cured at an elevated temperature and recovered.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: April 24, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Raymond J. Swedo, Joseph J. Zupancic
  • Patent number: 4908096
    Abstract: Ethers of oligomeric phenol-dialdehyde condensation products containing vinyl benzyl moieties in at least half of the ether moieties are excellent photosensitive prepolymers. Through simple masking and irradiation with a broad range of radiation types, such a resin as a coating can be selectively patterned by dissolving the non-irradiated and non-photocrosslinked portions of the prepolymer with a large variety of common solvents. The outstanding differential solubility between the photocrosslinked and non-crosslinked regions of the prepolymer allows excellent resolution with good edge sharpness. Subsequent thermal curing affords a void-free infusible glassy solid with minimum shrinkage, excellent planarity characteristics, and high resistance to cracking.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: March 13, 1990
    Assignee: Allied-Signal Inc.
    Inventor: Joseph J. Zupancic
  • Patent number: 4900794
    Abstract: Thermosetting resins which are essentially vinylbenzyl end-capped ethers of the oligomeric condensation products of certain dihydric phenols and formaldehyde are readily polymerized to give an extensively cross-linked polymer particularly useful in printed circuit boards and similar laminates. Effective cost reduction may be enjoyed by replacing up to 50% of the vinylbenzyl moieties by other groups, such as alkyl and benzyl groups, without destroying the usefulness of the resulting thermosetting resins. The vinylbenzyl ether product from bisphenol-A is especially recommended.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: February 13, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Andrew M. Zweig, James A. Wrezel
  • Patent number: 4885091
    Abstract: Chlorine-resistant semipermeable membranes which comprise an interfacial polymerized reaction product composited on a porous support backing material may be prepared by contacting a porous support material such as polysulfone with an aqueous solution of an aromatic polyamine containing a chlorine substituent on the aromatic ring such as 5-chlor-m-phenylenediamine. The coated support material is then contacted with an organic solvent solution of aromatic polycarboxylic acid chloride such as trimesoyl chloride for a period of time sufficient to form an interfacial polymerized reaction product on the surface of the support material. The resultant semipermeable membrane is then cured at curing conditions to form the desired composite. The resultant membrane composite may be used in separation processes such as desalination of brackish or sea water, the membrane being resistant to attack by chlorine which is present in the water.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: December 5, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Raymond J. Swedo, Joseph J. Zupancic
  • Patent number: 4855375
    Abstract: Thermosetting resins which are essentially vinylbenzyl end-capped ethers of the oligomeric condensation products of certain dihydric phenols and formaldehyde are readily polymerized to give an extensively cross-linked polymer particularly useful in printed circuit boards and similar laminates. Effective cost reduction may be enjoyed by replacing up to 50% of the vinylbenzyl moieties by other groups, such as alkyl and benzyl groups, without destroying the usefulness of the resulting thermosetting resins. The vinylbenzyl ether product from bisphenol-A is especially recommended.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: August 8, 1989
    Assignee: Allied-Signal Inc.
    Inventors: Joseph J. Zupancic, Andrew M. Zweig, James A. Wrezel