R&D Highlights

 RSS

Edward M. Petrie

Special Featured R&D Highlights Sep 05, 2010 - Heat sealable polyurethane compositions. - Patent Many polyurethane foams are severely restricted in certain applications since they are unsuitable for heat bonding. This invention attempts to...

Latest

• Sep 09, 2010 - Disappearing particles make LCD connections clearer - Patent
  Hitachi Chemical has developed an anisotropically conductive adhesive (ACA) that makes it easier to see if opaque metal electrodes on glass sheets are...
• Sep 06, 2010 - Nylon and PET sew up snack packet permeability - Patent
  Packaging made from plant-based chemicals can prevent food spoiling, says snack producer Frito-lay, if it uses nylon or polyethylene terephthalate...
• Sep 05, 2010 - Adhesion of automotive windowpanes. - Patent
  In automobile manufacture, single component polyurethane adhesives have been used for a long time for bonding windowpanes to the body by use of...
• Sep 05, 2010 - Bond behavior of a new CFRP anchorage system for concrete. - Patent
  Failure of CFRP strengthening systems when applied to concrete structures is usually typified by delamination of the CFRP from the concrete substrate....
• Sep 05, 2010 - Composition for protecting concrete table top from cracking and damage. - Patent
  A concrete table top construction is described to protect against cracking in both indoor and outdoor use. Most concrete tables manufactured today...
• Sep 05, 2010 - Edge sealing of foam boards. - Patent
  A method and machine are described for sealing at least one cut edge of a foam board. The foam board has a top surface, a bottom surface, and at...
• Sep 05, 2010 - Heat sealable polyurethane compositions. - Patent
  Many polyurethane foams are severely restricted in certain applications since they are unsuitable for heat bonding. This invention attempts to...
• Sep 05, 2010 - Hot melt styrene block copolymer adhesive for disposable absorbent elastic articles. - Patent
  Hot melt adhesive compositions containing hyper-branched SBS block copolymers and end use applications are described in this patent. Hyperbranched...
• Sep 05, 2010 - Low formaldehyde emission adhesive system for interior wood products. - Patent
  The invention relates to an improved two-component adhesive system and its use for production of interior wood products. It can be used for...
• Sep 05, 2010 - Method of making a breathable laminate film. - Patent
  A method of making a breathable film laminate is described. This included providing a TPU film, applying to a release substrate a layer of...
• Sep 05, 2010 - Method of manufacturing a precise sound absorption behavior into a sandwich panel. - Patent
  A method for manufacturing a sandwich panel with precise sound absorption behavior is described in this patent. The panel comprises a porous cover...
• Sep 05, 2010 - Model for calculating the strength of adhesive joints intended for service in sea water. - Patent
  The application of adhesive in the joining of materials is limited not only by the impossibility of accurately calculating the strength of an adhesive...
• Sep 05, 2010 - Moisture curable polyurethane adhesive for lamination and bonding to FRP. - Patent
  This invention relates to polyurethane prepolymer containing adhesives that are liquid at room temperature and that do not phase separate under...
• Sep 05, 2010 - Radio frequency heating to bond two materials. - Patent
  A method is described for bonding two materials that uses radio frequency (RF) energy to swiftly induce heat in a high permeability material. This...
• Sep 05, 2010 - Toughening agents for epoxy resins based on isocyanate. - Patent
  The invention relates to curable compositions comprising (1) N-arylated benzoxazines and (2) a prepolymer from a diisocyanate having two isocyanate...
• Sep 05, 2010 - Water soluble sealing material for consumer packaging. - Patent
  This invention provides a water soluble sealing packaging material having excellent halogen resistance. It can be used to seal a medicament to be...
• Sep 02, 2010 - Vegetable oil chemicals improve heat bonded polyurethane foams - Patent
  Including polyol chemicals based on soy or castor oil in a polyurethane foam allows direct bonding with fewer drawbacks than existing foams, say...
• Aug 30, 2010 - Encapsulant process cuts out carrier wafers - Patent
  Covering semiconductor chips and the substrates that they're attached to with common encapsulants can avoid often-used extra reinforcement steps used...
• Aug 28, 2010 - Castor-oil based polyurethane adhesive for use in bonding wood and foam substrates. - Technical Paper
  Solventless adhesives from renewable sources are greatly appreciated since they can be produced at low prices and can be biodegradable as compared to...
• Aug 28, 2010 - Epoxy adhesives reinforced with carbon nanotubes to bond aluminum plates. - Technical Paper
  Carbon nanotube reinforced epoxy was developed to use as adhesives. Mechanical stirring with ultrasonics was a simple and effective approach to...
• Aug 28, 2010 - Plasticizer-free, self-adhesive removable labels. - Patent
  What is described is an adhesive composition comprising a polymer, preferably in the form of an emulsion polymer dispersed in water. The emulsion...
• Aug 28, 2010 - Properties of a polyurethane sealant based on hydroxyl terminated butadiene copolymer. - Technical Paper
  A polyurethane sealant was prepared through the reaction of hydroxyl terminated butadiene copolymer (HTPB), bis-hydroxypropyl phenyl aniline (BHA) and...
• Aug 28, 2010 - Study of epoxy bond strength of metal to optical glass joints. - Conference
  Concerns over the long term reliability of metal to optical glass joints were examined. The authors empirically investigate the roles played by epoxy...
• Aug 28, 2010 - Use of electrochemical impedance spectroscopy (EIS) to characterize liquid diffusion in adhesives. - Technical Paper
  Preliminary results on the technique of electrochemical impedance spectroscopy (EIS) applied to the characterization of diffusion and absorption...
• Aug 28, 2010 - Using two different adhesives in the same joint to get added strength. - Technical Paper
  The use of relatively low modulus adhesive at the ends of overlap in a bi-adhesive bondline of a bonded joint can reduce the stress concentration...
• Aug 28, 2010 - UV curable primer sealant for natural stone tiles to minimize wicking. - Patent
  The invention relates to a process for applying a liquid UV curable primer sealant to nature stone tiles and related articles followed immediately by...
• Aug 26, 2010 - Green enzyme-powered adhesives heal themselves - Patent
  Enzymes can help produce sustainable adhesives and also heal them when in service, says coating biotechnology firm Reactive Surfaces. Scientists at...
• Aug 23, 2010 - Flexible encapsulants hold print head durability promise - Patent
  Researchers at US printer manufacturing giant Lexmark have developed their own flexible adhesives and encapsulants to try and reduce damage to the...
• Aug 22, 2010 - Adhesive tape that releases when stretched. - Patent
  Adhesive tapes are described that can be easily released by being stretched. The adhesive tape is stretch releasable and can be used to couple two...
• Aug 22, 2010 - Effect of movement during cure on the properties of a silicone sealant. - Technical Paper
  A novel sealant testing device was used to continuously monitor the mechanical properties of a one-part silicone sealant for movement cycles initiated...
• Aug 22, 2010 - Fasteners for disposable absorbent products that do not require a release tape nor adhesive. - Patent
  Disclosed in this patent are fasteners for disposable absorbent articles. The disclosed fasteners generally are free of release tape and adhesive...
• Aug 22, 2010 - Heat activated adhesives for bag closures. - Patent
  A polymeric woven bag has a first panel and a second panel and an open end of the bag to be pinched closed. A first layer of heat activated adhesive...
• Aug 22, 2010 - Hyper-fine cement for sealing porous materials or making a fire resistant textile. - Patent
  The hyper-fine cement disclosed in this patent is suitable for sealing or strengthening porous molded articles, rock, or other porous formations. It...
• Aug 22, 2010 - Laminated flooring with high concentration of recycled fiber bonded with phenol-formaldehyde resin adhesives. - Technical Paper
  The effects of old corrugated cardboard (OCC) fiber addition on high density fiberboard were investigated in this study. A PF resin was synthesized...
• Aug 22, 2010 - Seal for a container that is suitable for a PET recycling process. - Patent
  There is increasing attempts to recycle materials used in consumer packaging, for example bottles used for containing potable liquids. A seal for a...
• Aug 22, 2010 - Using shape-memory polymer composite to make repair patches. - Patent
  A method of repairing a composite component having a damaged area is described. The method includes laying a composite patch over the damaged area,...
• Aug 22, 2010 - UV curable sealant for liquid crystal display panels. - Technical Paper
  A UV curable sealant was synthesized by polymerizing epoxy resin with acrylic acid in the presence of a catalyst (N, N-dimethylbenzylamine). The...
• Aug 19, 2010 - Gecko handshake offers dust-free manufacturing - Patent
  Two gecko-mimicking adhesive surfaces are better than one when it comes to moving small components around in clean-room conditions, researchers in...
• Aug 16, 2010 - Insulating adhesive brings EMI shielding to smaller electronics - Patent
  A Finnish researcher embedding chips that produce radio signals directly into circuit boards has found that they can be protected from interference by...
• Aug 14, 2010 - Bond strength of FRP reinforcing elements in concrete under freeze-thaw cycles. - Technical Paper
  Bonding between the adherends represents a key point when dealing with the reinforcement of concrete structures by using fiberglass reinforced...
• Aug 14, 2010 - Collection of bond strength data for dental adhesives. - Technical Paper
  The goal of this paper is to undertake a literature search collecting all dentin bond strength data obtained for six adhesives with four tests (shear,...
• Aug 14, 2010 - Soybean protein based wood adhesives. - Technical Paper
  To build a resource-saving and environmentally friendly society, the problem of formaldehyde type adhesives is growing seriously, and the...
• Aug 14, 2010 - Superstrong adhesive tape incorporating a suction function. - Patent
  This invention relates to a superstrong adhesive tape that adheres to a substrate by providing the tape with a suction bond function. The suction...
• Aug 14, 2010 - The effect of environmental conditions and manufacturing methods on carbon/epoxy composite joints. - Technical Paper
  Composite single-lap joints were tested to study the combined effect of the environmental condition and the manufacturing methods as they pertain to...
• Aug 14, 2010 - The effect of mechanical properties of adhesives on stress distribution in joints. - Technical Paper
  The influence of the mechanical properties of adhesive on stress distribution in single-lap jointed cantilevered beams is investigated in this paper. ...
• Aug 14, 2010 - Thermosetting hot melt powder adhesive for bonding elastomers to metals. - Patent
  This invention describes a powder adhesive comprising a primary rubber bonding polymer and a thermosetting component and a method for bonding...
• Aug 14, 2010 - Tire repair with a solvent-swollen rubber. - Patent
  This invention describes methods and articles utilizing a bonding material that comprises ultra-accelerators and solvent-swollen diene rubber. ...
• Aug 12, 2010 - Synthetic polymerisation pumps up mussel adhesive durability - Patent
  Using synthetic polymers to replacing the natural backbone of mussel adhesive proteins can eliminate their susceptibility to degradation, Bruce Lee of...
• Aug 09, 2010 - Raw material combination increases adhesive renewable content - Patent
  Combining the right renewable chemicals can reduce the amount of fossil fuel polyol raw material needed for foam polyurethane adhesives by up to 30%,...
• Aug 07, 2010 - Adhesive having good adherence to low surface energy substrates. - Patent
  This invention relates to a methacrylate based polymerizable adhesive composition. It includes an alkylated borohydride or tetraalky borane metal or...
• Aug 07, 2010 - Composite material is a substitute for conventional wood material boards in construction. - Patent
  According to this invention, a composite material can act as a substitute for conventional wood material boards in the construction field. These...
• Aug 07, 2010 - Composite structure for making transdermal drug delivery devices. - Patent
  A composite structure suitable for making transdermal drug delivery devices is described in this invention. The composite includes (1) a liner film...
• Aug 07, 2010 - Determination of tin compounds in water soluble adhesive by GC-MS. - Technical Paper
  The use of diphenyltin, (DPT), tributyltin (TBT) and triphenyltin (TPT) in some household products are prohibited in Japan. In this study, methods...
• Aug 07, 2010 - Fatigue life predictions in adhesively bonded joints. - Technical Paper
  Fatigue is a very important factor in any adhesively bonded structure subject to service loads. Prediction of fatigue life using FEA techniques is...
• Aug 07, 2010 - Room temperature crosslinked foam for sealing insulation cavities of a building. - Patent
  Low rise, user friendly latex foams for sealing insulative cavities of a building are provided in this invention. The foams may be applied to the...
• Aug 07, 2010 - Sandwich composites made from syntactic foam core and paper skin. - Conference
  Novel sandwich composites made of syntactic foam core, paper skin and starch adhesive to interface between the foam core and the paper skin were...
• Aug 07, 2010 - Sealing material with excellent water resistance and durability. - Patent
  This invention provides a sealing material having excellent water resistance for a long time. The sealing material described in the invention...
• Aug 07, 2010 - Transparent, heat resistant and light resistant sealing agent for optical semiconductors. - Patent
  The sealing agent for an optical semiconductor device is described. It is comprised of a silicone resin, a heat curing agent, and a fine particulate...
• Aug 05, 2010 - Spray method makes more reliable anisotropically conductive films - Patent
  Scientists at Sony say that they can precisely position metal particles and prevent them moving in directionally conductive adhesives with their...
• Aug 02, 2010 - Henkel reveals chemical weapon for semiconductor packaging - Patent
  US researchers have invented a polymer structure for adhesives, coatings and encapsulants that they hope will provide improved resistance to...
• Jul 31, 2010 - Containers for photocurable adhesives and coatings. - Patent
  A variety of materials are known that cure upon exposure to light in the visible or ultraviolet spectrum. These materials are considered advantageous...
• Jul 31, 2010 - Failure of t-peel joints by modeling using FEA with experimental validation. - Technical Paper
  The paper describes an efficient procedure based on standard finite element techniques for the failure analysis of bonded structures. Modeled with...
• Jul 31, 2010 - Fracture behavior of structural adhesive joints under quasi-static and cyclic loading. - Conference
  Structural adhesive joints are expected to retain integrity in their entire service life that normally involves cyclic loading coinciding with...
• Jul 31, 2010 - Hot melt applied polyurethane primers for adhesives, sealants, and coatings. - Patent
  Primers have been used as undercoats to improve the adhesion of adhesives, sealing materials, and coatings on subsurfaces. In addition to a binder,...
• Jul 31, 2010 - Induction sealing device for producing packages for liquid food products. - Patent
  This invention is for an induction sealing device for heat sealing packaging materials and producing sealed packages of pourable food products. The...
• Jul 31, 2010 - Photosensitive adhesive for wafer bonding in a MEMS fabrication. - Technical Paper
  Adhesive wafer bonding is a technique that uses an intermediate layer (typically a polymer) for bonding two substrates. The main advantages of this...
• Jul 31, 2010 - PSA composition for optical filters and plasma displays. - Patent
  The invention relates to a PSA composition for optical filter that is used in a plasma display panel. The PSA is applied as an adhesive film. More...
• Jul 29, 2010 - Renewable silicone sealants cut shrinkage - Patent
  Biodiesel oils evaporate less than mineral oils when used as extenders in silicone sealants, suggesting that products using them will shrink less,...
• Jul 26, 2010 - Flexible contacts eliminate conductive adhesives from displays - Patent
  Samsung Electronics researchers say that metal contacts formed on raised polymeric supports surrounded by insulating adhesives conduct display signals...
• Jul 25, 2010 - Adhesive for difficult to adhere polymer coated board stock used in packaging. - Patent
  Adhesives are uniquely formulated to ensure appropriate adhesion to polymer coated paperboard. Such adhesive can be used in case and carton sealing...
• Jul 25, 2010 - Antistatic adhesive film for fabricating liquid crystal displays. - Patent
  This invention relates to an antistatic adhesive composition and method of fabricating liquid crystal displays. In recent years, liquid crystal...
• Jul 25, 2010 - Bimodal acrylate PSA resulting from targeted adjustment of molecular weight distribution. - Patent
  Targeted adjustment of the molecular weight distribution of acrylate adhesives is necessary for the purpose of improved processing. Bimodal...
• Jul 25, 2010 - Conductive tape for manufacturing of a thin film solar cell. - Patent
  A highly reliable thin film solar cell and method of manufacturing are provided in this invention. The disclosed product has improved bonding...
• Jul 25, 2010 - Effect of pH near the bond line on adhesive strength of wood components. - Technical Paper
  The pH distribution near the adhesive wood bond line in black spruce bonded with various acidic and alkaline adhesives was investigated. For alkaline...
• Jul 25, 2010 - Effect of surface roughness on adhesive strength of acrylate copolymers. - Technical Paper
  The effect of surface roughness on the adhesive properties of uncrosslinked butyl acrylate – methyl acrylate copolymers with different molecular...
• Jul 25, 2010 - Effect of tapering length and material properties on adhesive stress distribution in composite laminates. - Technical Paper
  One major problem when using bonded fiber reinforced plastic laminates to strengthen and upgrade existing structures is the high stresses in the...
• Jul 25, 2010 - Effects of switching from plastic to paper banding strips on adhesive strength of packaging binder. - Technical Paper
  The feasibility of the application of easy recovery paper banding strip for substitution of polypropylene plastic tape is described in this paper. ...
• Jul 25, 2010 - Low moisture permeability barrier sealants that are capable of radiation or thermal cure. - Patent
  This invention relates to curable sealants that provide low moisture permeability and good adhesive strength after cure. The composition comprises an...
• Jul 25, 2010 - Method of installing a roofing membrane. - Patent
  This invention describes a roofing membrane consisting of two distinct layers. The first layer includes a low surface energy polymer. A method of...
• Jul 25, 2010 - Methods and systems for sealing leaks in existing pipes in a single operation using epoxy and filler. - Patent
  Methods and systems for cleaning, coating, and sealing leaks in existing pipes are disclosed in this invention. A piping system can be cleaned in one...