Patents by Inventor Ciaran B. McArdle
Ciaran B. McArdle 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).
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Patent number: 7659423Abstract: This invention relates to a process for producing electron deficient olefins, such as 2-cyanoacrylates, in a polar solvent, such as an ionic liquid.Type: GrantFiled: April 18, 2006Date of Patent: February 9, 2010Assignee: Loctite (R&D) LimitedInventor: Ciaran B. McArdle
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Publication number: 20090288771Abstract: The present invention relates to radically curable compositions for curing on a surface comprising a radically curable component, and an initiator component capable of initiating cure of the radically curable component. The initiator comprises at least one metal salt and a free radical generating component. The metal salt of the composition is chosen so that it is reduced at the surface, where the standard reduction potential of the metal salt is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt is reduced at the surface, and interacts with the free radical generating component, thereby initiating cure of the radically curable component of the composition. No catalytic component is required in the composition for efficient curing.Type: ApplicationFiled: May 22, 2009Publication date: November 26, 2009Applicant: Loctite (R&D) LimitedInventors: David Farrell, Ciaran B. McArdle, Michael Doherty
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Publication number: 20090288769Abstract: The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, an accelerator species comprising at least one vinyl ether functional group and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. The accelerator species comprising at least one vinyl ether functional group greatly enhances the rate of cure.Type: ApplicationFiled: May 22, 2009Publication date: November 26, 2009Applicant: Loctite (R&D)LimitedInventors: David Farrell, Ciaran B. McArdle, Michael Doherty
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Publication number: 20090288770Abstract: The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. No catalytic component is required in the composition for efficient cure.Type: ApplicationFiled: May 22, 2009Publication date: November 26, 2009Applicants: Loctite (R&D) Limited, Henkel AG & Co. KGaAInventors: David Farrell, Ciaran B. McArdle, Michael Doherty, Emilie Barriau, Rainer Schoenfeld
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Publication number: 20090234079Abstract: The present invention relates to novel adducts useful for improving the toughness and curable compositions using such toughening adducts. In a particular aspect, the present invention relates to novel toughening adducts and curable compositions having improved fracture toughness using those toughening adducts.Type: ApplicationFiled: March 24, 2009Publication date: September 17, 2009Applicants: Loctile (R&D) Limited, Henkel AG & Co. KGaAInventors: Barry N. Burns, Ray P. Tully, Jonathan P. Wigham, Martin J. Fitzpatrick, Rainer Schoenfeld, Ciaran B. McArdle, Mark Loane
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Publication number: 20090203934Abstract: This invention relates to novel iminium salts, which may be in the form of ionic liquids, and a process for producing electron deficient olefins, such as 2-cyanoacrylates, using such an iminium salt, for instance in the form of an ionic liquid.Type: ApplicationFiled: April 15, 2009Publication date: August 13, 2009Applicant: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Ligang Zhao
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Patent number: 7569719Abstract: This invention relates to processes for producing electron deficient olefins, such as 2-cyanoacrylates, using an iminium salt, and if desired contacting the reaction byproduct with alkali to generate an amine and separating that amine therefrom.Type: GrantFiled: October 24, 2007Date of Patent: August 4, 2009Assignee: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Ligang Zhao
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Publication number: 20080076886Abstract: The present invention relates to novel adducts useful for improving the toughness and curable compositions using such toughening adducts. In a particular aspect, the present invention relates to novel toughening adducts and thermosetting resin formulations having improved fracture toughness using those toughening adducts.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Inventors: Barry N. Burns, Ray P. Tully, Jonathan P. Wigham, Martin J. Fitzpatrick, Rainer Schoenfeld, Ciaran B. McArdle, Mark Loane
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Patent number: 6583289Abstract: The present invention provides a new class of materials effective as curatives for anaerobic adhesive compositions. The addition of these materials into anaerobic adhesives as a replacement for conventional curatives, such as APH, surprisingly provides at least comparable cure speeds and physical properties for the reaction products formed therefrom.Type: GrantFiled: June 26, 2001Date of Patent: June 24, 2003Assignee: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Rory B. Barnes
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Patent number: 6402876Abstract: The present invention provides a number of interrelated methods for the production of random and ordered arrays of particles and recesses, as well as films containing such arrays and recesses. The present invention also relates to the random and ordered arrays of particles and films prepared therefrom. The ordered arrays are obtained by the use of ferrofluid compositions which may be curable, solidifiable or non-curing/non-solidifiable. The arrays and films may contain electrically-conductive particles useful in electronic applications for effecting contact between leads or pads.Type: GrantFiled: February 29, 2000Date of Patent: June 11, 2002Assignee: Loctite (R&D) IrelandInventors: Ciaran B. McArdle, Joseph Burke, Edward K. Welch, II
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Patent number: 6231714Abstract: Curable compositions include at least one monomer compound having both (meth)acrylic ester functionality and an allylic phenyl ether functional group on the same molecule, the allylic phenyl ether functional group having at least one unsubstituted position on the phenyl ring which is ortho or para to the allylic ether group, and a free radical catalyst system. The composition may also includes a latent thermally activated acid generator. Claisen Rearrangement of radically polymerized polymers produced from the compositions may be induced at temperatures of about 100° C. or more to give crosslinked products of improved thermal resistance.Type: GrantFiled: November 24, 1998Date of Patent: May 15, 2001Assignee: Loctite CorporationInventors: John G. Woods, Susanne Morrill, Ciaran B. McArdle
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Patent number: 6180226Abstract: The present invention provides a number of interrelated methods for the production of random and ordered arrays of particles and recesses as well as films containing such arrays and recesses. The present invention also relates to the random and ordered arrays of particles and films prepared therefrom. The ordered arrays are obtained by the use of ferrofluid compositions which may be curable, solidifiable on non-curing/non-solidifiable. The arrays and films may contain electrically-conductive particles useful in electronic applications for effecting contact between leads or pads.Type: GrantFiled: March 31, 1998Date of Patent: January 30, 2001Assignee: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Joseph Burke, Edward K. Welch, II
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Patent number: 6149857Abstract: An anisotropically-conductive film or a substrate having a surface coated with an anisotropically-conductive coating, said film or coating being formed by solidifying a composition comprising(i) a solidifiable ferrofluid composition, the ferrofluid comprising a colloidal suspension of ferromagnetic particles in a non-magnetic carrier, and(ii) a plurality of electrically-conductive particles, dispersed in the ferrofluid,the electrically-conductive particles having been arrayed in a non-random pattern by application of a substantially uniform magnetic field to the composition in a liquid state and having been locked in position by solidification of the composition.The composition is solidified in an A-stage, usually involving a primary cure. In end-use application of the film or coating, the composition usually undergoes a B-stage or secondary cure. The film or coated substrate is an article of manufacture for bonding conductors in the electronics industry.Type: GrantFiled: December 22, 1998Date of Patent: November 21, 2000Assignee: Loctite (R&D) LimitedInventors: Ciaran B. McArdle, Joseph Burke
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Patent number: 5916641Abstract: The present invention provides for a number of interrelated methods for the production of random and ordered arrays of particles as well as films containing the same. In another aspect, the present invention relates to the random and ordered arrays of particles and films prepared therefrom. The ordered arrays are obtained by the use of ferrofluid compositions which may be curable, solidifiable or non-curing/non-solidifiable. Especially preferred arrays and films contain electrically conductive particles for use in electronic applications for effecting contact between leads or pads.Type: GrantFiled: August 1, 1996Date of Patent: June 29, 1999Assignees: Loctite (Ireland) Limited, Loctite CorporationInventors: Ciaran B. McArdle, Joseph Burke, Edward K. Welch, II
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Patent number: 5851644Abstract: An anisotropically-conductive film or a substrate having a surface coated with an anisotropically-conductive coating, said film or coating being formed by solidifying a composition comprising(i) a solidifiable ferrofluid composition, the ferrofluid comprising a colloidal suspension of ferromagnetic particles in a non-magnetic carrier, and(ii) a plurality of electrically-conductive particles, dispersed in the ferrofluid,the electrically-conductive particles having been arrayed in a non-random pattern by application of a substantially uniform magnetic field to the composition in a liquid state and having been locked in position by solidification of the composition. The composition is solidified in an A-stage, usually involving a primary cure. In end-use application of the film or coating, the composition usually undergoes a B-stage or secondary cure. The film or coated substrate is an article of manufacture for bonding conductors in the electronics industry.Type: GrantFiled: July 25, 1996Date of Patent: December 22, 1998Assignee: Loctite (Ireland) LimitedInventors: Ciaran B. McArdle, Joseph Burke
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Patent number: 5411998Abstract: A process for sealing or adhering two surfaces having gaps of more than 100 micrometers between the surfaces which comprises:(A) applying to at least one of said surfaces an anaerobic composition comprising:(i) a room temperature polymerizable (meth)acrylic monomer,(ii) a peroxy free radical initiator, and(iii) an amount effective as an accelerator of a combination of saccharin and at least one onium salt (other than an iodide); and(B) placing said surfaces in an abutting relationship until the composition has cured through the gaps.Exemplified onium salts are phosphonium salts of the formula IV and quaternary ammonium salts of the formula II: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 which may be the same or different, are hydrocarbyl, hydrocarbylaryl, aryl or a substituted derivative thereof;X is Cl, Br or F, or a soft anion.Type: GrantFiled: July 19, 1993Date of Patent: May 2, 1995Assignee: Loctite LimitedInventors: Ciaran B. McArdle, Joseph Burke
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Patent number: 5259987Abstract: Liquid crystal polymers, which may be used for optical information storage, either alone or in mixture with other liquid crystals, are of the general formula ##STR1## wherein the mesogenic grouping M has a general structure ##STR2## wherein the rings P and Q are selected from phenyl, trans-cyclohexyl, pyridyl, pyrimidinyl, dioxanyl, and bicyclo (2.2.2) octyl. The rings P and/or Q may carry lateral substituents, preferably Me or F. The general structure of Formula (I) may represent a homopolymer or a copolymer.Type: GrantFiled: November 18, 1991Date of Patent: November 9, 1993Assignee: The General Electric Company, p.l.c.Inventors: Ciaran B. McArdle, Gary Nestor, George W. Gray, David Lacey
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Patent number: 5200238Abstract: A method of forming liquid crystal alignment layers of high tilt angle, said method comprising preparing a polymeric film of a monomer of the formula IV: ##STR1## wherein X and Y are strong electron withdrawing groups, optionally substituted with or containing Si or Ti, and A is --H or --CH.dbd.CH.sub.2 or, provided that X and Y are both --CN, A may be --R.sup.2 or --CH.dbd.CHR.sup.2 wherein R.sup.2 is hydrocarbyl, aryl or alkaryl; exposing said polymeric film to ultraviolet radiation for sufficient period of time to photochemically modify the polymer and, thereafter, subjecting the modified polymer to a heat treatment in the range of 100.degree.-400.degree. C. for at least 5 seconds.Type: GrantFiled: September 25, 1991Date of Patent: April 6, 1993Assignee: Loctite (Ireland) LimitedInventors: Ciaran B. McArdle, John G. Woods, Anthony F. Jacobine
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Patent number: 5157528Abstract: An updatable optical storage device, which may be in microfiche configuration, includes two electrically conductive layers (2,6) between which a layer (5) of a liquid crystal storage material and a layer (3) of a photoconductive material are sandwiched. In order to record an image on the device, the image is projected on to the photoconductive layer through one of the conductive layers, a voltage is applied between the conductive layers, and the storage material is heated at least over regions where the image is to be stored. Projection of the image is continued until the storage material has cooled. The storage material may, for example, be a liquid crystal polymer or a glassy nematic liquid crystal material. The process can be repeated any number of times to update any part or all of the iamge.Type: GrantFiled: June 21, 1989Date of Patent: October 20, 1992Assignee: The General Electric Company, p.l.c.Inventors: Michael G. Clark, Ciaran B. McArdle
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Patent number: 5141970Abstract: A method of forming high-temperature resistant polymers by a 2 step curing process comprising(a) curing a polymerizable composition at least one aromatic compound having alpha and/or beta instruction which is not substantially reactive under the curing condition of step a, particularly allyl or properyl, and(b) heating the cured composition of step a in the presence of acid to form a crosslinked resin.Type: GrantFiled: December 10, 1990Date of Patent: August 25, 1992Assignee: Loctite (Ireland) LimitedInventors: Ciaran B. McArdle, Joseph Burke, John G. Woods, Edward K. Welch, II