Patent application number | Description | Published |
20080319105 | CRASH DURABLE EPOXY ADHESIVES WITH VERY LOW SENSITIVITY TO TEMPERATURE VARIATIONS - Epoxy adhesive compositions contain an epoxy resin, rubber modification, a toughener and a curing agent. The tougher has capped epoxide-reactive groups, and at least one polytetrahydrofuran block having a mass of 2200-4500 daltons. The selection of toughener in a rubber-modified epoxy-based structural adhesive provides for very good low temperature performance. | 12-25-2008 |
20090048370 | TWO PART CRASH DURABLE EPOXY ADHESIVES - Two-component epoxy-based structural adhesives are disclosed which exhibit excellent impact resistance, even when cured at approximately room temperature. The adhesives include an epoxy resin component which includes an epoxy resin and a reactive tougher. The adhesives also include a hardener component, which includes from 15 to 50 weight percent of an amine-terminated polyether, from 4 to 40 weight percent of an amine terminated rubber having a glass transition temperature of −40° C. or below, and from 10 to 30 weight percent of an amine-terminated polyamide having a melting temperature of no greater than 50° C. | 02-19-2009 |
20090065143 | TWO-COMPONENT EPOXY ADHESIVE COMPOSITION - The present invention relates to a two-component epoxy adhesive composition comprising
| 03-12-2009 |
20110020652 | Two-Component Epoxy Adhesive Composition - The present invention relates to a two-component epoxy adhesive composition comprising
| 01-27-2011 |
20110297317 | ONE-PART STRUCTURAL EPOXY RESIN ADHESIVES CONTAINING DIMERIZED FATTY ACID/EPOXY RESIN ADDUCT AND A POLYOL - Structural adhesives containing a non-rubber-modified epoxy resin, an elastomeric toughener and a curing agent further include an epoxy-functional fatty acid oligomer and a polyol. The presence of the epoxy-functional fatty acid oligomer and a semi-crystalline or crystalline polyester polyol in combination increase the storage stability of the structural adhesive. | 12-08-2011 |
20120071584 | STRUCTURAL EPOXY RESINS CONTAINING CORE-SHELL RUBBERS - Core-shell rubbers are incorporated into epoxy adhesives. The adhesives are structural type adhesives that contain an epoxy resin and a toughener, and may contain a liquid rubber in addition to the core-shell rubber. The adhesives have good modulus and tensile strength, which are obtained without loss of elongation and adhesive properties. | 03-22-2012 |
20120211161 | STRUCTURAL EPOXY RESIN ADHESIVES CONTAINING ELASTOMERIC TOUGHENERS CAPPED WITH KETOXIMES - Structural adhesives are prepared from an elastomeric toughener that contains urethane and/or urea groups, and have terminal isocyanate groups that are capped with ketoxime compound. The adhesives have very good storage stability and cure to form cured adhesives that have good lap shear and impact peel strengths, even at −40° C. | 08-23-2012 |
20130090431 | STORAGE-STABLE HEAT-ACTIVATED TERTIARY AMINE CATALYSTS FOR EPOXY RESINS - Epoxy adhesive compositions contain a heat-activatable catalyst. The heat-activatable catalyst includes a tertiary amine catalyst and a novolac resin that has a weight average molecular weight of at least 3000. One-component epoxy adhesive formulations that contain the heat-activatable catalyst have unexpectedly good storage stability. | 04-11-2013 |
20130263995 | STRUCTURAL EPOXY RESIN ADHESIVES CONTAINING CHAIN-EXTENDED ELASTOMERIC TOUGHENERS CAPPED WITH PHENOL, POLYPHENOL OR AMINOPHENOL COMPOUNDS - Structural adhesives are prepared from a chain extended elastomeric toughener that contains urethane and/or urea groups, and have terminal isocyanate groups that are capped with a phenol, a polyphenol or an aminophenol compound. The adhesives have very good storage stability and cure to form cured adhesives that have good lap shear and impact peel strengths. | 10-10-2013 |
20140138028 | STRUCTURAL EPOXY RESIN ADHESIVES CONTAINING ELASTOMERIC TOUGHENERS CAPPED WITH KETOXIMES - Structural adhesives are prepared from an elastomeric toughener that contains urethane and/or urea groups, and have terminal isocyanate groups that are capped with ketoxime compound. The adhesives have very good storage stability and cure to form cured adhesives that have good lap shear and impact peel strengths, even at −40° C. | 05-22-2014 |
20140147677 | Novel Structural Adhesive and Use Thereof - A structural adhesive exhibiting good humidity resistance in the uncured state, good failure mode after curing, good crash stability, and good corrosion resistance, is provided, as well as methods of use thereof. The structural adhesive and methods of use thereof are applicable, e.g., in complete knock down (CKD) assembly systems, e.g., in the assembly of automobile body structures. | 05-29-2014 |
20140171550 | EPOXY RESIN WITH ENHANCED VISCOSITY STABILITY AND USE THEREOF - The present invention provides low polyphenols (such as bisphenol A) tougheners for epoxy adhesives. The tougheners, and adhesives comprising the tougheners exhibit enhanced viscosity stability, e.g., compared to tougheners prepared from higher amounts of bisphenol A (and epoxy adhesives comprising them). | 06-19-2014 |
20140275423 | ONE-PART STRUCTURAL EPOXY RESIN ADHESIVES CONTAINING ELASTOMERIC TOUGHENERS CAPPED WITH PHENOLS AND HYDROXY-TERMINATED ACRYLATES OR HYDROXY-TERMINATED METHACRYLATES - Structural adhesives are prepared from an elastomeric toughener that contains urethane and/or urea groups, and have some terminal isocyanate groups that are capped with a phenol and other terminal isocyanate groups that are capped with a hydroxy-functional acrylate or a hydroxy-functional methacrylate. In certain embodiments, the presence of both types of capping on the toughener leads to higher impact peel strengths and a greater level of cohesive failure, than when the toughener is capped with a phenol an hydroxy-functional acrylate or hydroxy-functional methacrylate alone. | 09-18-2014 |
20140343228 | Polymers with Carboxylic Ammonium Groups as Latent Catalysts for Epoxy Curing Applications - A one-component epoxy composition containing a latent catalyst and with surprisingly long storage stability. The catalyst being a reaction product of at least one tertiary amine compound and at least one polymer having at least one carboxylic acid and/or anhydride group. | 11-20-2014 |
20150025176 | FLAME RETARDANT STRUCTURAL EPOXY RESIN ADHESIVES AND PROCESS FOR BONDING METAL MEMBERS - A heat-curable structural adhesive includes at least one non-rubber-modified epoxy resin; an optional rubber or toughener, one or more epoxy curing agents, one or more epoxy curing catalysts; and a flame retardant mixture that includes (i) alumina trihydrate, (ii) zinc borate and (iii) melamine or a melamine derivative. The structural adhesive is useful for bonding metals to other materials or metals to other metals. The structural adhesive strongly resists ignition when welding is performed in the presence of the uncured material, and does not interfere significantly with weld performance. | 01-22-2015 |
20150037497 | WASH-OFF RESISTANT EPOXY ADHESIVE COMPOSITION AND PRE-GELLED ADHESIVE - An epoxy adhesive composition is provided that has superior wash-off resistance after pre-gelling, and may be used, e.g., in manufacturing processes, e.g., in the automobile industry. The compositions comprise an epoxy resin, a gelling agent, and a phenolic agent, and may optionally comprise other components. Methods of making and using the compositions are also provided. | 02-05-2015 |
20150045510 | EPOXY ADHESIVE, MANUFACTURE AND USE THEREOF - The invention relates to epoxy adhesives. An epoxy adhesive is provided that simultaneously has low E-modulus and high glass temperature. Such adhesives are useful in the manufacture of large machinery (e.g., automobiles), and are useful for bonding different materials, such as metal and carbon fiber composite. The cured epoxy adhesive can be formulated to have an E-modulus of less than 1000 MPa, and a glass transition temperature of at least 80 C. The epoxy adhesive comprises a capped polyurethane pre polymer, a core shell rubber, and polyetheramine-epoxy adduct. | 02-12-2015 |
Patent application number | Description | Published |
20080264184 | Wireless Sensors in Roll Covers - An industrial roll includes: a substantially cylindrical shell having an outer surface; a polymeric cover circumferentially overlying the shell outer surface; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, each sensor configured to sense a data parameter; and a plurality of wireless transceivers, each transceiver connected to a respective sensor and embedded in the cover adjacent thereto. Each wireless transceiver is configured to transmit data signals from the respective sensor. Related methods and systems are also discussed. | 10-30-2008 |
20090205818 | DOWNWELL SYSTEM WITH SWELLABLE PACKER INCLUDING BLOWING AGENT - A downwell packer assembly includes a tubular member and a packer element mounted on the tubular member. The packer element comprises a composition that includes a polymer. The packer element includes micropores (typically created via a blowing agent). When the packer element is exposed to a swelling fluid, such as water or hydrocarbon, the micropores can help to control and, in some instances, increase the rate of swelling. Such swelling enables the packer element to form a seal against the walls of the wellbore. | 08-20-2009 |
20090205841 | DOWNWELL SYSTEM WITH ACTIVATABLE SWELLABLE PACKER - A packer system for a wellbore includes a tubular member and a packer element having an inner layer that circumferentially overlies the tubular member and an outer layer that circumferentially overlies the inner layer. The inner layer includes an elastomer that swells upon contact with a swelling fluid. The outer layer includes a material that provides at least a partial barrier to the swelling fluid. | 08-20-2009 |
20090205842 | ON-SITE ASSEMBLABLE PACKER ELEMENT FOR DOWNWELL PACKING SYSTEM - A packer system for a wellbore includes: a tubular member; a packer element mounted on the tubular member and formed of a swellable polymeric material; and a securing unit that is configured to enable the position of the packer element to be adjusted relative to the tubular member when the securing unit is in an unsecured condition, but secures the packer element in place when the securing unit is in a secured condition. | 08-20-2009 |
20090320612 | Wireless Sensors in Roll Covers - An industrial roll includes: a substantially cylindrical shell having an outer surface; a polymeric cover circumferentially overlying the shell outer surface; and a sensing system. The sensing system includes: a plurality of sensors embedded in the cover, each sensor configured to sense a data parameter; and a plurality of wireless transceivers, each transceiver connected to a respective sensor and embedded in the cover adjacent thereto. Each wireless transceiver is configured to transmit data signals from the respective sensor. Related methods and systems are also discussed. | 12-31-2009 |