Patents Assigned to DYMAX
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Publication number: 20110083346Abstract: An undercutter having removable top and bottom portions, which when in place and secured, provide the channel means for the chain, and when removed, allow for replacement of worn parts without loosening or removing the chain.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: New Dymax, Inc.Inventors: Dennis Clasen, Scott Balderson, Harold Fechter
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Patent number: 7892386Abstract: The invention provides fluorescing compositions which cure by exposure to ultraviolet radiation and contain a europium compound which fluoresces at visible wavelengths. More particularly, the invention pertains to liquid, radiation-curable compositions comprising a substantially homogeneous fluid comprising, a fluorescing europium compound in an admixture of a polymerizable component and a polymerization initiator. Such find use as adhesives, coatings, and the like.Type: GrantFiled: August 24, 2007Date of Patent: February 22, 2011Assignee: Dymax CorporationInventors: Stephan J. W. Platzer, Patrick S. Vaughn, Aysegul Kascatan Nebioglu
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Patent number: 7802910Abstract: The invention provides a light guide exposure device comprising light emitting diodes arranged in a single array defining an array width and a flexible light guide having a proximal end and a distal end; the proximal end defining a proximal end diameter. The array is positioned in substantial alignment with the light guide proximal end to direct substantially all of the light from the array to the proximal end. There is no optical element between the light emitting diodes and the proximal end which optical element would decrease the intensity of light directed from the light emitting diodes to the proximal end. The array width is substantially equal to the proximal end diameter.Type: GrantFiled: January 29, 2008Date of Patent: September 28, 2010Assignee: Dymax CorporationInventors: Kirk A. Middlemass, Stephan J. W. Platzer, George H. Lester, Todd J. Hallock
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Patent number: 7691557Abstract: A polymerizable acrylate or epoxy composition includes a dye comprised of a conjugated system containing a chromophore that is subject to effective decoupling, by a reactive alkylating species generated by the polymerization initiator, to produce a permanent loss of color and thereby to indicate that curing has occurred.Type: GrantFiled: June 29, 2005Date of Patent: April 6, 2010Assignee: Dymax CorporationInventors: Andrew G. Bachmann, Stephen E. Cantor, Igor V. Khudyakov
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Patent number: 7671543Abstract: The invention provides a light exposure apparatus containing a light exposure control device for curing light sensitive adhesives. The light exposure apparatus includes a) a light source; b) a light transmitter for transmitting light from the light source; and c) a light intensity controlling component between the light source and the light transmitter. The light intensity controlling component includes a light regulator having a planar face between the light source and the light transmitter. The light regulator has opaque members having a continuously tapered width, on the face of the light regulator. Each planar member is spaced from adjacent planar members by a light transparent segment having a tapered width, on the face of the light regulator. The light regulator is mounted such that a portion of the opaque members and portion of the substantially light transparent segments are adjustably positioned between the light source and the light transmitter.Type: GrantFiled: January 23, 2007Date of Patent: March 2, 2010Assignee: Dymax CorporationInventors: George H. Lester, Thomas J. Cavanaugh, Kirk A. Middlemass, Stephan J. W. Platzer
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Patent number: 7001930Abstract: A non-aqueous, solvent-free formulation for producing clear, transparent, heat-resistant elements, suitable for use as lenses in optoelectronic devices, consists essentially of an acidic, nonpolymerizing acrylic resin; THFA, DMA, HEMA, HBA, or an equivalent polymerizable diluent in which the acrylic resin is dissolved; and a free-radical photoinitiator.Type: GrantFiled: January 14, 2003Date of Patent: February 21, 2006Assignee: Dymax CorporationInventors: John R. Arnold, Maria Fe Aton Audia
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Patent number: 6765037Abstract: A free radical-curable epoxy composition comprises epoxy resin and a copolymerizable material including a monomer having amide, acrylamide, or hydroxyl functionality, and is advantageously devoid of any cationic catalyst ingredient.Type: GrantFiled: November 28, 2001Date of Patent: July 20, 2004Assignee: Dymax CorporationInventor: John R. Arnold
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Patent number: 6664307Abstract: Low-shrinkage positioning formulations include, in addition to the resin-forming composition, a filler comprised of fibrous and spherical elements, usually of glass, present in a defined ratio and amount. The resin formulation may desirably comprise epoxy resin and a copolymerizable monomer having amide, acrylamide, or hydroxyl functionality, and may advantageously be devoid of any cationic catalyst ingredient.Type: GrantFiled: November 28, 2001Date of Patent: December 16, 2003Assignee: Dymax CorporationInventors: John R. Arnold, Nicole M. Langer
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Patent number: 6218446Abstract: A radiation-curable formulation employs an electrically conductive primary filler, comprised of elements of elongate form and having surfaces that reflect the actinic radiation to which the photoinitiator employed is responsive, and a secondary filler that is electrically semiconducting and is substantially transparent to the actinic radiation; silver-coated cylindrical fibers or rods will typically constitute the primary conductive filler. Solid deposits cured from the formulation may function, for example, as sealing elements, gaskets, solder joints, and coatings.Type: GrantFiled: July 26, 1999Date of Patent: April 17, 2001Assignee: Dymax CorporationInventors: John R. Arnold, Vu V. Lam, Andrew G. Bachmann
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Patent number: 6169125Abstract: A radiation-curable formulation employs an electrically conductive filler comprised of elements of elongate form, which elements have surfaces that reflect the actinic radiation to which the photoinitiator employed is responsive. Silver-coated cylindrical fibers or rods will typically constitute the conductive filler, and solid deposits cured from the formulation may function as, for example, sealing elements, gaskets, and solder-like joints. In certain preferred embodiments the formulation will include an active oxygen free radical-generating catalyst, the presence of which enhances curing even though the reaction conditions are such that normal thermal catalysis temperatures are not attained.Type: GrantFiled: January 11, 1999Date of Patent: January 2, 2001Assignee: Dymax CorporationInventor: John R. Arnold
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Patent number: 6080450Abstract: The use of a phosphine oxide photoinitiator enables the effective curing of a polymerizable acrylate formulation despite the incorporation of a high concentration of a fluorescing agent, thereby facilitating, and enhancing the efficiency of, evaluation of the cured deposit utilizing its fluorescent response.Type: GrantFiled: February 10, 1997Date of Patent: June 27, 2000Assignee: Dymax CorporationInventor: Stephen E. Cantor
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Patent number: 6008568Abstract: A reflector/lamp assembly employs a heat-sink component that includes a rigid, elongate, relatively wide and thin conductor element which is disposed forwardly of the reflector rim and extends radially to a distal point lying substantially beyond the axial projection of the rim. The heat-sink component efficiently dissipates thermal energy without attenuating the reflected radiation and without imposing physical constraints or stresses.Type: GrantFiled: March 13, 1998Date of Patent: December 28, 1999Assignee: Dymax CorporationInventors: Ira J. Pitel, Benjamin J. Slootskin
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Patent number: 5728787Abstract: The adhesive formulation minimizes corrosion of copper surfaces (e.g., of motor commutators) caused by volatile ingredients of conventional acrylate compositions, and cure speeds are significantly increased thereover.Type: GrantFiled: June 19, 1996Date of Patent: March 17, 1998Assignee: Dymax CorporationInventor: Stephen E. Cantor
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Patent number: 5712321Abstract: The polymerizable acrylate formulation, and method utilizing the same, employ a catalyst system that includes a tertiary aromatic amine compound and an air-curing polyether-ene polymer, in a specified ratio, in combination with an acid ingredient and a transition metal that together form a coordination compound. The formulation cures through bulk, as well as on the surface, in a highly effective manner.Type: GrantFiled: February 1, 1996Date of Patent: January 27, 1998Assignee: Dymax CorporationInventors: Stephen E. Cantor, Brian Bachmann
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Patent number: 5703138Abstract: An acrylate composition, especially useful for producing conformal coatings on circuit board assemblies, includes a photoinitiator and an air-curing system, the latter being comprised of a compound having multiple allyloxy groups in its molecule and a transition metal salt catalyst. The composition is highly stable against auto-induced reaction in the absence of oxygen and at room temperature; it contains no active oxygen catalyst and no nonreactive diluent, and is advantageously formulated as a one-part product.Type: GrantFiled: July 24, 1996Date of Patent: December 30, 1997Assignee: Dymax CorporationInventors: Stephen E. Cantor, Leon Levine
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Patent number: 5677362Abstract: An acrylate encapsulation formulation reacts at a high rate of speed, when exposed to radiation inclusive of wavelengths in the ultraviolet and the visible range, to initially produce a relatively thick skin and to ultimately cure to a relatively low-stress deposit having good physical definition and surface properties. The method entails exposure of the formulation, on an object, to radiation for initialing photopolymerization and thermal polymerization, and the apparatus includes closely juxtaposed actinic radiation and thermal energy sources.Type: GrantFiled: November 4, 1996Date of Patent: October 14, 1997Assignee: Dymax CorporationInventors: Andrew G. Bachmann, Stephen E. Cantor
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Patent number: 5672393Abstract: An acrylate encapsulation formulation reacts at a high rate of speed, when exposed to radiation inclusive of wave-lengths in the ultraviolet and the visible range, to initially produce a relatively thick skin and to ultimately cure to a relatively low-stress deposit having good physical definition and surface properties. The method entails exposure of the formulation, on an object, to radiation for initialing photopolymerization and thermal polymerization, and the apparatus includes closely juxtaposed actinic radiation and thermal energy sources.Type: GrantFiled: November 4, 1996Date of Patent: September 30, 1997Assignee: Dymax CorporationInventors: Andrew G. Bachmann, Stephen E. Cantor
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Patent number: 5512608Abstract: A multi-part composition is provided which is suitable for use as an adhesive, a potting compound, a coating or a sealant. It consists of a polymerizable acrylate formulation and an activating formulation, the latter usually comprising an amine-aldehyde condensation product diluted with a liquid vinyl ether; liquid epoxides may also be included as diluents in the activating formulation.Type: GrantFiled: January 27, 1995Date of Patent: April 30, 1996Assignee: Dymax CorporationInventors: Andrew G. Bachmann, Stephen E. Cantor
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Patent number: 5393800Abstract: A catalyst system for effecting polymerization in a two-part formulation, which contains an oxygen-containing ethylenically unsaturated monomer, consists of a selected acid, a selected aromatic amine compound, and a transition metal compound; active-oxygen, free-radical catalysts are excluded. Because of the nature of the catalyst system, efficient reaction does not require intimate mixing of the two components of the formulation, which may therefore be applied effectively as fine-droplet sprays from a common, ultrasonically vibrated head.Type: GrantFiled: February 21, 1992Date of Patent: February 28, 1995Assignee: Dymax CorporationInventors: Gary V. Grosclaude, Andrew G. Bachmann
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Patent number: 5388754Abstract: A water-soluble coating or other deposit is produced from a formulation that is comprised of a curable liquid substance and a dispersed, particulate effervescing agent. The formulation is particularly useful as a solder resist in the manufacture of PCBs, and the preferred composition contains n-vinyl-2-pyrrolidone, N,N-dimethylacrylamide, and polyvinylpyrrolidone.Type: GrantFiled: March 29, 1993Date of Patent: February 14, 1995Assignee: Dymax CorporationInventors: Gary V. Grosclaude, Andrew G. Bachmann