Abstract:
A curable epoxy resin composition including (a) at least one epoxy resin; and (b) at least one hardener; wherein the curable epoxy resin composition has at least two exotherm peaks representing at least two distinct chemical reactions and wherein the exothermic peak difference of the two exotherm peaks is sufficient to allow the curable epoxy resin composition of being B-staged.
Abstract:
A multifunctional aromatic amine hardener composition including the reaction condensation product of (a) at least one aniline and (b) at least one non-aromatic cyclic dicarboxaldehyde; and a reactive thermosettable resin composition including (i) at least one multifunctional aromatic amine hardener composition curing agent, (ii) at least one thermoset resin, and optionally (c) at least one catalyst; and a process for preparing a thermoset product from the thermosettable composition. The hardener composition above and a thermoset resin may be used to prepare a thermoset product with improved thermo- mechanical behavior.
Abstract:
A power splitting gearbox is provided that allows a single prime mover to distribute power, for example torque, to multiple final drive assemblies, such as surface drives or other final drives. The power splitting gearbox can be provided downstream from a marine transmission and can be mounted directly to a transom of a marine vessel. The gearbox can have a back wall that accepts and supports mounting surfaces of the multiple final drive assemblies such that the gearbox bears the weight of the multiple final drive assemblies. The gearbox has two outputs that rotate in opposing directions so that a pair of final drive assemblies mounted to the gearbox will counter-rotate a pair of propellers for providing a propulsive force that moves the marine vessel.
Abstract:
A curable composition comprising a) an epoxy resin; and b) a hardener component comprising i) an oligomeric compound comprising a phosphorus composition which is the reaction product of an etherified resole with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and ii) naphthol novolac, is disclosed. The curable composition can be used to prepare electrical laminates and printed circuit boards.
Abstract:
The invention is a photovoltaic article comprising a first photovoltaic cell having a photoelectrically active region which is located between a topside electrode and a backside electrode, at least one first interconnect element in contact with the frontside electrode at a front surface of the cell and the interconnect element is adhered to the topside electrode of the cell, and at least one second interconnect element adhered to the backside electrode. An electronically conductive adhesive having a low Tg is used to adhere the interconnect element to the frontside electrode. The ECA used to adhere the second interconnect element to the backside electrode is characterized by at least one of the following features: a glass transition temperature of at least 85 C and the backside electrically conductive adhesive comprises a metal chelation compound characterized by the presence of a heterocyclic component comprising one of O, N, or S in a ring configuration and at least one additional heteroatom selected from O, N, or S.
Abstract:
A solvent-free curable epoxy resin composition including (a) at least one divinylarene dioxide; and (b) at least one hardener; wherein the solvent-free curable epoxy resin composition is substantially free of solvent and has at least two exotherm peaks and wherein the exothermic peak difference of the two exotherm peaks is sufficient to allow the curable solvent-free epoxy resin composition of being B-staged.
Abstract:
A solvent-free curable epoxy resin composition including (a) at least one divinylarene dioxide; and (b) at least one hardener; wherein the solvent-free curable epoxy resin composition is substantially free of solvent and has at least two exotherm peaks and wherein the exothermic peak difference of the two exotherm peaks is sufficient to allow the curable solvent-free epoxy resin composition of being B-staged.
Abstract:
Embodiments of the present disclosure provide a composition that includes a phosphorous-containing compound, a cyanate ester, an epoxy resin, and a maleimide. For the various embodiments, a viscosity of the composition increases less than 100% as measured by Gardner Bubble Viscosity a temperature of 23°C in at least 3 days. For the various embodiments, the composition of the present disclosure can also include an aprotic solvent, such as a ketone. Embodiments of the present disclosure further include a composition that includes the phosphorous-containing compound, the cyanate ester, and the aprotic solvent. For the various embodiments, the composition can also include the epoxy resin and the maleimide. For the various embodiments, the composition does not include an aliphatic alcohol.
Abstract:
A low viscosity toughened epoxy resin formulation including a divinylbenzene dioxide as a component in the formulation; wherein the formulation is useful for the manufacture of thermoset polymers.
Abstract:
Homogeneous solutions including an epoxy resin, a maleimide component including at least one bismaleimide, and a cyanate ester component are disclosed. Such compositions may be useful, for example, in curable compositions, thermoset compositions, and the manufacture of electrical laminates and other end products that may be formed from or using the curable and thermoset compositions.