Abstract: A curable composition exhibiting excellent moldability without mold staining or delamination is provided, including an epoxy resin, a curing agent for the epoxy resin, and a polyphenylene oxide compound having a glass transition temperature between about 165° C. and about 190° C. The polyphenylene oxide compound may be provided as a melt blended mixture of two polyphenylene oxide compounds having distinct glass transition temperatures. The curable compositions may further include a bulk filler, and are therefore particularly useful as molding compounds encapsulation of electrical and/or electronic parts in transfer molding operations.
Abstract: This invention provides an acrylic epoxy adhesive as a two part composition, wherein each part is of suitable viscosity for use in pumping apparatus, but after mixing, the composition increases in viscosity, so that it will not sag, drip, or migrate after application to a surface during the open time. This effect is achieved with a reactive acid component that gels on mixing with the epoxy portion of the composition. Also provided is a method of preparing the adhesive composition, and method of using the composition to form laminated materials.
Abstract: Dry-to-the-touch compositions containing a polymeric matrix and a anaerobically curable component present within the polymeric matrix are disclosed. In a particularly desirable form, the compositions are moisture curable. The compositions are non-flowable, at high temperatures, and have an improved solvent resistance once cured.
Type:
Application
Filed:
November 19, 2009
Publication date:
March 11, 2010
Applicant:
Henkel Corporation
Inventors:
Shabbir Attarwala, Ifeanyi C. Broderick, Qinyan Zhu, Roger J. Grismala
Abstract: A two-part curable foaming composition comprising: (A) A first part comprising: (i) an alkoxysilyl capped prepolymer; and (ii) a polyhydrogen siloxane; (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; and (B) A second part comprising: (i) a nitrogen-containing compound having an active hydrogen; (ii) water; and (iii) optionally a catalyst which accelerates both foaming and cross-linking through said alkoxysilyl groups; provided that at least one of the parts contain a catalyst and wherein after mixing together the first and second parts a cured elastomeric foam is formed.
Type:
Grant
Filed:
March 24, 2003
Date of Patent:
March 9, 2010
Assignee:
Henkel Corporation
Inventors:
Thomas Fay-Oy Lim, James E. Lionberger, Steven T. Nakos
Abstract: In accordance with the present invention, it has now been found that glycidyl epoxy resins containing substitution on the epoxide ring can be used with conventional epoxy curing agents and fluxing agents to produce underfill adhesives that are suitable for use with silver-based alloys. Owing to the structural similarity of the new materials to conventional epoxy resins, physical and material properties of the invention formulations are altered little, if at all, relative to products currently in use, and so are highly compatible with existing processes.
Type:
Grant
Filed:
July 21, 2008
Date of Patent:
March 2, 2010
Assignee:
Henkel Corporation
Inventors:
John G. Woods, Yuhshi Lu, Bruce C. B. Chan, Philip T. Klemarczyk, Andrew D. Messana
Abstract: Curable compositions, such as benzoxazine-based ones, are useful in applications within the aerospace industry, such as for example as a heat curable composition for use as a matrix resin or an adhesive, and form the basis of the present invention.
Type:
Grant
Filed:
December 3, 2004
Date of Patent:
February 23, 2010
Assignee:
Henkel Corporation
Inventors:
Wei Helen Li, Stanley L. Lehmann, Raymond S. Wong
Abstract: A curable composition and method for producing a tear resistant, yet soft and deformable in-the-ear product yielding the user greater comfort and durability. The curable composition incorporated into a hearing aid apparatus provides a deformable, yet tear resistant housing, which may be mated to a soft tip component. The hearing aid housing provides better comfort, durability and acoustic performance for a variety of ear canal shapes. The curable composition that provides these properties includes at least one urethane acrylate oligomer, at least one reactive diluent and a cure system. The composition when cured desirably produces a tear strength of at least about 75 pli and a hardness of about Shore A 60 to about 75.
Type:
Grant
Filed:
January 14, 2009
Date of Patent:
February 9, 2010
Assignee:
Henkel Corporation
Inventors:
Alan Edward Litke, JoAnn DeMarco, Victor Karol Kadziela
Abstract: A one handed reusable tape dispenser and applicator comprises side walls, a top wall and a separate bottom wall which may be opened to allow loading of a roll of tape through an open front. Further, the tape dispenser is provided with tabs, a button and a pressing bar which present a leading length of tape in an arched condition across its width extending forwardly from the dispenser ready to be applied to a substrate; and an enlarged pressing surface allowing a user to easily dispense tape onto substrates such as wrapping paper.
Type:
Application
Filed:
July 25, 2008
Publication date:
January 28, 2010
Applicant:
HENKEL CORPORATION
Inventors:
Dan Dureiko, Michael J. Maczuzak, Brian A. Vulpitta, Migdalia McKenzie
Abstract: Curable compositions, such as benzoxazine-based ones, are useful in applications within the aerospace industry, such as for example as a heat curable composition for use as a matrix resin or an adhesive, and form the basis of the present invention.
Type:
Grant
Filed:
October 26, 2006
Date of Patent:
January 19, 2010
Assignee:
Henkel Corporation
Inventors:
Wei Helen Li, Stanley L. Lehmann, Raymond S. Wong
Abstract: The present invention relates to curable compositions of benzoxazines, a combination of adducts one of which is prepared from hydroxy-containing compounds, isocyanate-containing compounds and phenolic compounds and the second of which is prepared from the first adduct and epoxy-containing compounds and phenolic compounds, epoxy resins and optionally tougheners.
Type:
Grant
Filed:
December 2, 2005
Date of Patent:
January 19, 2010
Assignee:
Henkel Corporation
Inventors:
Wei Helen Li, Stanley L. Lehmann, Raymond S. Wong
Abstract: Dry-to-the-touch compositions containing a curable polymeric matrix and a curable anaerobic composition present within the polymeric matrix are disclosed. In a particularly desirable form, the compositions are moisture curable. The compositions are non-flowable at high temperatures and have an improved solvent resistance once cured.
Type:
Application
Filed:
September 18, 2009
Publication date:
January 14, 2010
Applicant:
Henkel Corporation
Inventors:
Shabbir Attarwala, Ifeanyi C. Broderick, Qinyan Zhu
Abstract: A two-part moisture-curing composition having as a first part water and an hydroxy-terminated diorganosiloxane; and a second part which includes a reactive silicone, at least one end-capping silane which includes one or more enoxy groups, at least one end-capping catalyst and at least one moisture cure catalyst. Enhanced and controlled cure speed is obtained by these compositions.
Type:
Application
Filed:
September 18, 2009
Publication date:
January 14, 2010
Applicant:
Henkel Corporation
Inventors:
Michael P. Levandoski, Jennifer Lynn Smith McCarthy
Abstract: The invention is based on the discovery that certain self-filleting die attach adhesives are useful in semiconductor die assemblies containing thin die. As used herein, the term “self-filleting” refers to any adhesive that when dispensed and then subjected to suitable cure conditions, will flow and fill up the area between two die or between a die and a substrate while not forming a bulky fillet that can overflow onto the top of the die. In addition, the invention is useful for tight tolerance semiconductor die assemblies, since the fillet from the die-attach adhesives employed in the methods of the invention does not cover bond fingers, thereby causing wire bond yield loss.
Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.
Type:
Grant
Filed:
September 5, 2006
Date of Patent:
January 12, 2010
Assignee:
Henkel Corporation
Inventors:
Stephen M. Dershem, Dennis B. Patterson, Jose A. Osuna, Jr.
Abstract: The present invention provides a cyanoacrylate composition comprising a cyanoacrylate component; and a core shell rubber component having a particle size in the range of 3 nm to 1,000 nm dispersed in a curable (meth)acrylate matrix.
Type:
Application
Filed:
June 18, 2009
Publication date:
December 3, 2009
Applicant:
Henkel Corporation
Inventors:
Shabbir Attarwala, Ling Li, John J. Cocco
Abstract: The present invention provides a (meth)acrylate composition comprising a (meth)acrylate component; and a core shell rubber component having a particle size in the range of 3 nm to 1,000 nm dispersed in a curable (meth)acrylate matrix.
Type:
Application
Filed:
June 18, 2009
Publication date:
December 3, 2009
Applicant:
Henkel Corporation
Inventors:
Shabbir Attarwala, Qinyan Zhu, John J. Cocco, Ifeanyi C. Broderick
Abstract: The present invention provides curable hot melt compositions including reactive polymers, which are reinforced by organic polymers to impart higher tensile strength and elongation to the compositions upon cure. In particular, the present invention provides curable hot melt compositions including a silicone urea based polymer and a reinforcement polymer. In some embodiments, the compositions cure upon exposure to moisture and/or radiation. The compositions may be used, for example, as sealants or adhesives.
Type:
Grant
Filed:
October 27, 2006
Date of Patent:
December 1, 2009
Assignee:
Henkel Corporation
Inventors:
Thomas Fay-Oy Lim, David P. Dworak, Mathias E. Liistro, Jr., Hsien-Kun Chu
Abstract: A molding compound is provided for use in encapsulating electronic packages which include an optoelectronic component, such as an LED. The molding compound includes a partially cured epoxy composition, an antioxidant, and, optionally, a phosphor material substantially uniformly distributed throughout the epoxy composition. The optional phosphor material may be suspended within the epoxy composition by pre-reacting a portion of the epoxy composition prior to B-staging of the molding compound. As such, the optional phosphor material is suspended within the epoxy composition, thereby preventing settling of the phosphor material during B-staging, as well as during curing of the molding compound in the encapsulation process.
Abstract: A process for improving adhesion to a surface that is at least partially coated with a fluorocarbon-containing coating, as well as a method for bonding surfaces that are at least partially coated with a fluorocarbon-containing coating, are disclosed. Moreover, compositions that may be used in the aforementioned process and method are disclosed. Additionally, articles and assemblies that include surfaces that are coated with a fluorocarbon-containing coating are disclosed.
Type:
Application
Filed:
June 4, 2007
Publication date:
November 19, 2009
Applicant:
Henkel Corporation
Inventors:
Alex Toback, Paul Chaplinsky, Charles Schuft, Ifeanyi Chris Broderick, James Murray, Douglas E. Frost