Patents by Inventor Bruce Virnelson

Bruce Virnelson 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).

  • Publication number: 20130344287
    Abstract: Disclosed are sulfur-containing polymers containing copolymerizable adhesion promoters and compositions including sealant compositions useful in aerospace applications comprising sulfur-containing polymers containing copolymerizable adhesion promoters. In particular, polythioethers and polysulfides incorporating copolymerizable adhesion promoters are disclosed.
    Type: Application
    Filed: July 12, 2013
    Publication date: December 26, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Bruce Virnelson
  • Publication number: 20130284359
    Abstract: UV curable sealants, method s for making the sealants, and method for using the sealants are disclosed. The UV curable sealants may be used in seal caps useful to seal fasteners in aerospace fuel tanks. The UV curable sealants may also be used to smooth defects in surfaces such as aerospace surfaces.
    Type: Application
    Filed: October 24, 2012
    Publication date: October 31, 2013
    Inventor: Bruce Virnelson
  • Publication number: 20120040104
    Abstract: Disclosed are methods for making a cured sealant. The methods include depositing an uncured sealant composition on a substrate and exposing the uncured sealant composition to actinic radiation to provide a cured sealant. The uncured sealant composition includes a thiol-terminated polythioether and a polyene comprising a polyvinyl ether and/or a polyallyl compound. Related sealant compositions are also disclosed.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Chandra Rao, Bruce Virnelson
  • Publication number: 20120040103
    Abstract: Disclosed are compositions that include: a) a thiol-terminated polymer; and b) a sulfur-containing ethylenically unsaturated silane. Related products, such as sealants, that include polymers derived from such compositions, are also disclosed.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 16, 2012
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Raquel Keledjian, Renhe Lin, Chandra Rao, Bruce Virnelson
  • Patent number: 6796102
    Abstract: An insulating glass unit including a first pane of glass, a second pane of glass, and a spacer system. The spacer system includes (i) a spacer positioned between an inner surface of the first pane of glass and an inner surface of the second pane of glass and (ii) a sealant system for adhering the inner surfaces of the glass panes to the spacer. The sealant system includes at least one sealant having (a) at least one thermoplastic hot-melt material having a melt temperature ranging from about 125° F. (51° C.) to about 250° F. (121° C.), and (b) at least one curable material. The sealant, when cured, forms a covalent bond between the spacer and the panes. The sealant has an initial hardness ranging from about 25 Shore A to about 450 Shore A and a post-cure hardness measured about 48 hours thereafter ranging from about 30 Shore A to about 50 Shore A.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 28, 2004
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Richard Giangiordano
  • Publication number: 20020194813
    Abstract: An insulating glass unit including a first pane of glass, a second pane of glass, and a spacer system. The spacer system includes (i) a spacer positioned between an inner surface of the first pane of glass and an inner surface of the second pane of glass and (ii) a sealant system for adhering the inner surfaces of the glass panes to the spacer. The sealant system includes at least one sealant having (a) at least one thermoplastic hot-melt material having a melt temperature ranging from about 125° F. (51° C.) to about 250° F. (121° C.), and (b) at least one curable material. The sealant, when cured, forms a covalent bond between the spacer and the panes. The sealant has an initial hardness ranging from about 25 Shore A to about 450 Shore A and a post-cure hardness measured about 48 hours thereafter ranging from about 30 Shore A to about 50 Shore A.
    Type: Application
    Filed: August 9, 2002
    Publication date: December 26, 2002
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Richard Giangiordano
  • Patent number: 6457294
    Abstract: An insulating glass unit including a first pane of glass, a second pane of glass, and a spacer system. The spacer system includes (i) a spacer positioned between an inner surface of the first pane of glass and an inner surface of the second pane of glass and (ii) a sealant system for adhering the inner surfaces of the glass panes to the spacer. The sealant system includes at least one sealant having (a) at least one thermoplastic hot-melt material having a melt temperature ranging from about 125° F. (51° C.) to about 250° F. (121° C.), and (b) at least one curable material. The sealant, when cured, forms a covalent bond between the spacer and the panes. The sealant has an initial hardness ranging from about 25 Shore A to about 450 Shore A and a post-cure hardness measured about 48 hours thereafter ranging from about 30 Shore A to about 50 Shore A.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 1, 2002
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Richard Giangiordano
  • Patent number: 6136910
    Abstract: This invention relates generally to spacer assemblies for insulating glass units. More specifically, this invention relates to a single component desiccant matrix which can be applied to the interior of a spacer assembly at room temperature. Upon exposure to the ambient atmosphere, the desiccant matrix irreversibly cures.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: October 24, 2000
    Assignee: PRC-Desoto International, Inc.
    Inventors: Bruce Virnelson, Jin Song
  • Patent number: 6136446
    Abstract: This invention relates generally to spacer assemblies for insulating glass units. More specifically, this invention relates to a single component desiccant matrix which can be applied to the interior of a spacer assembly at room temperature. Upon exposure to the ambient atmosphere, the desiccant matrix irreversibly cures.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: October 24, 2000
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Bruce Virnelson, Jin Song
  • Patent number: 5849832
    Abstract: This invention relates generally to sealants for insulating glass units. More specifically, this invention is a one-component, hot applied, chemically curing sealant for edge sealing insulating glass units. The sealant contains a thermoplastic hot melt resin blended with an atmospheric curing resin. The hot melt resin functions as the meltable component during the initial application, and supplies strength immediately upon cooling. The polymer phase then begins to cure by reaction with atmospheric oxygen and/or moisture to form a cross-linked thermoset elastomer which is temperature resistant. At this point, the hot melt resin functions as an inert plasticizer within the cured polymer phase. The sealant of the present invention may additionally include plasticizers, fillers, pigments, catalysts and the like.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: December 15, 1998
    Assignee: Courtaulds Aerospace
    Inventors: Bruce Virnelson, Pat Niega