摘要:
Nitrone-based compositions are disclosed that may be utilized for the prevention and treatment of a variety of ophthalmic diseases or conditions where RPE65 protein isomerohydrolase is implicated. Methods of production and use of said nitrone-based compositions, as well as pharmaceutical and ophthalmic compositions containing same, are disclosed.
摘要:
The present invention includes new compositions for making polyurethane and polyurethane foam compositions. These compositions comprise the reaction product of an isocyanate A-Side and a B-Side comprising: (i) a polyol having a molecular weight of about 1000 g/mol or more, and having an average functionality of 2.0 or greater; (ii) a polyol having a Tg of about −80° C. or less, and having a molecular weight of about 1000 g/mol or more, and having an average functionality of 2.0 or greater; and(iii) a polyhydric alcohol having a molecular weight of about 90 g/mol or more, and having an average functionality of 3.0 or more. In the case of polyurethane foam compositions, the system also comprises water. The invention also includes processes for making the polyurethane and polyurethane foam compositions, as well as methods of adhering the same to cosmetic layers comprising thermoplastic, acrylic, and gel coat materials. The invention also includes articles made from these reinforced cosmetic layers.
摘要:
A thermosetting unsaturated polyester-polyurethane hybrid foam resin composition is made without significant blistering by using a 2-component catalyst system--one which initiates at room temperature and one which initiates at a temperature of at least 75.degree. C. and has a one-hour half-life temperature of at least 90.degree. C.; the composition has a room temperature stability of at least thirty days.
摘要:
A cabinet is provided with a curved, upwardly-swinging door and interior shelves. The curved shelf door is mounted on a pair of opposed pivot arms which rotate on a horizontal axis. Each pivot arm is provided with a disk portion having a central boss and an arm portion tangent to the disk portion. The central boss engages a fixed stud at the side of the cabinet and provides a center pivot for each of the arms. A gas spring for each arm is provided, which is pivotably connected at one end to the arm and at the other end to a side wall of the cabinet. The gas spring serves a dual purpose of counterbalancing the door as it moves between an open and a closed position and opening the door unassisted once the user initiates movement of the door, this opening feature being very beneficial to seated and physically disabled users.
摘要:
The invention relates to an expansion fastener device that secures two interlocking members together. The device includes a parallelepiped receptacle having slits along opposite ends. The receptacle is inserted through the interlocking members and triple wedges are driven into the receptacle. The triple wedges includes a first wedge having tapers in the vertical direction and its insertion into receptacle causes only vertical expansion of the receptacle. A pair of horizontally tapered wedges are inserted into the receptacle alongside the first wedge and they cause only horizontal expansion of the receptacle. Utilization of the invention reduces stress points as created by conventional rivets.
摘要:
The invention relates to a joint for aircraft wing skins which have previously been connected to support substructures by rivets or other mechanical fasteners which create stress points and leakage points when aircraft wings are filled with fuel. The invention utilizes interleaved plies of a composite fabric to mechanically interlock the wing skin and support substructure. Use of the invention increases the structural integrity of the connection joint between wing skin and support substructure.
摘要:
An aircraft cowl, and in particular a translating cowl, used as a component of a thrust reverser, formed of at least one one-piece bondment cured in a single operation. Preferably, a one-piece inner bondment and a one-piece outer bondment fastened together at a joining region. The bondments have constant density cores and tapered closures. Acoustically absorbing materials are part of the lay up for one of the bondments and are integrally cured therein.
摘要:
An electrical heating cable which limits power output once an established temperature limit is reached. The cable includes heating elements in the form of temperature-sensitive variable resistance elements electrically connected in parallel between two supply bases at spaced positions along the length of the buses. The heating elements not only serve to generate heat for heating but also undergo a substantial positive increase in resistivity when the temperature of the cable nears the established temperature limit. The increase in resistivity substantially reduces the heat-generating current in the cable to limit the power output to within established heat limits.
摘要:
The present invention relates to processes for production of Very Long Chain Polyunsaturated Fatty Acids (VLC-PUFAs). The present invention also relates to compositions (e.g., nutritional supplements and food products) containing such VLC-PUFAs. In one embodiment, the present invention is directed to methods for biosynthesis and production of the VLC-PUFAs described herein (particularly C28-C38 PUFAs, also referred to herein as supraenes or supraenoics) by the expression, in a production host cell, of the full or partial sequence(s) of Elovl4 DNA/mRNA nucleic acids or ELOVL4 protein sequences encoded thereby, from any species (prokaryotic or eukaryotic) for use in the biosynthesis, production, purification and utilization of VLC-PUFAs in particular by the elongation of C18-C26 saturated fatty acids and PUFAs. The composition of the invention comprises, in various embodiments, a dietary supplement, a food product, a pharmaceutical formulation, a humanized animal milk, an infant formula, a cosmetic item and a biodiesel fuel for example. A pharmaceutical formulation can include, but is not limited to: a drug for treatment of neurodegenerative disease, a retinal disorder, age related maculopathy, a fertility disorder, particularly regarding sperm or testes, or a skin disorder.
摘要:
A cabinet is provided with a curved, upwardly-swinging door and interior shelves. The curved shelf door is mounted on a pair of opposed arms which rotate on a horizontal axis. Each arm is provided with two opposed, circularly arcuate slots and a central ellipsoidal slot, each slot engaging a fixed stud at the side of the cabinet. The ellipsoidal slot and its corresponding stud provide a center pivot for each of the arms. The arms are mounted inside the cabinet on opposed interior side walls. Lighting can be provided in a formed recess in the bottom of the cabinet. The cabinet can also be provided with plural internal shelves supported on planar brackets. The cabinet further can be provided with a pair of side-by-side doors and a center wall. Arms are mounted on each side of the center wall and adjacent the interior side walls of the cabinet, for separately mounting the doors.