摘要:
The invention is directed at devices, systems, and processes for managing the temperature of an electrochemical call including a device (10) comprising an inlet for receiving a heat transfer fluid; one or more electrochemical cell compartments (12) for receiving one or more electrochemical calls (20); one or more thermal energy storage material compartments (14) containing one or more thermal energy storage materials (18); and one or more heat transfer fluid compartments (16) for flowing the heat transfer fluid through the device; wherein the space between the one or more heat transfer fluid compartments (16) and the one or more electrochemical cell compartments (12) preferably includes one or more first regions (22) (i.e. portion) that are substantially free of the thermal energy storage material (18): and the space between the one or more heat transfer fluid compartments (18) and the one or more thermal energy storage material compartments (14) preferably includes one or more second regions (24) (i.e. portion) that are substantially free of an electrochemical cell (20); so that the heat transfer fluid compartment (16) is in direct thermal communication with both the thermal energy storage material compartment (14) and the electrochemical cell compartment (12).
摘要:
An improved energy absorbing member comprising, an thermoplastic cellular polymer in contact with a structural element such as a metal guard rail or automotive door, wherein the cellular polymer has an average cell size of at least about 0.75 mm and at least one of CE/CT, CV/CT and CH/CT is about 0.25 to about 0.4 said one of CE/CT, CV/CT and CH/CT having a compressive efficiency of at least 70% at a 60% strain, CE, CV and CH being the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H where one of these directions is the direction of maximum compressive strength in the foam and CT equals the sum of CE, CV and CH.
摘要:
The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than −20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
摘要:
A method to join a substrate to an object is disclosed using a curable one or two part adhesive composition comprising an effective amount of a stabilized organoborane amine complex initiator and one or more monomers, oligomers, polymers or mixtures thereof having olefinic unsaturation which is capable of polymerization by free radical polymerization.
摘要:
Improved thermal energy storage materials, devices and systems employing the same and related methods. The thermal energy storage materials may include a phase change material that includes a metal-containing compound. This invention is directed at methods of encapsulating thermal energy storage materials, devices containing encapsulated thermal energy storage materials, and capsular structures for encapsulating thermal energy storage materials.
摘要:
The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than −20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
摘要:
Stabilized polyethylene materials which offer an advantageously balanced combination of thermal, mechanical and processing properties, and which maintain their physical properties in chlorinated water environments are disclosed. The materials include an antioxidant system with components to provide extraction resistance in hot water environments and additionally provides oxidation resistance to both chlorine in the water interior of the pipe and oxygen in contact with the pipe's exterior.
摘要:
A method to join a substrate to an object is disclosed using a curable one or two part adhesive composition comprising an effective amount of a stabilized organoborane amine complex initiator and one or more monomers, oligomers, polymers or mixtures thereof having olefinic unsaturation which is capable of polymerization by free radical polymerization.
摘要:
The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than −20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
摘要:
The present invention pertains to a continuous process and polymerization system characterized by separate injection of catalyst and make-up feed, an ethylene interpolymer composition characterized as having broad molecular weight distribution (MWD) and optimized compositional uniformity, a process for making such a composition and a fabricated article made from such composition. The novel composition is characterized as having a melt flow ratio, I10/I2, from 8 to 30, a Mw/Mn of greater than 4 as determined by gel permeation chromatography, a melt index, I2, from 0.01 to 1000 grams/10 minutes, preferably greater that 0.1 to 10 grams/10 minutes, and a density less than 0.945 g/cm3. The novel composition exhibits good processibility and improved toughness properties, especially excellent film tear and impact resistance, and is particularly well-suited for use in applications such as high performance trash can liners and heavy duty shipping bags.