摘要:
Sprayable hot-melt adhesive compositions are disclosed comprising (A) styrenic block copolymer, (B) tackifying resin, and (C) ethylene copolymer. Methods of preparing and using said compositions are also disclosed.
摘要:
A hot-melt composition comprising an ethylene/vinyl acetate copolymer, an ethylene/n-butyl acrylate copolymer, and a tackifying resin can be spread into a thin layer that has a limited open time of at least 5 seconds. The composition eventually crystallizes to form a creep-resistant bond.
摘要:
A method for improving CGSI imaging system throughput by selectively decimating rows and/or columns of object image data prior to warp transformation in order to more closely approach a 1:1 compression ratio. The best results are produced on compressed object image data prior to decompression.
摘要:
Aerosol spray heads which provide a fan spray pattern for cohesive polymer solutions at high aerosol solids levels. The orifice of the spray heads is elongate in shape and generally aligned with and centered in an elongate groove in the exit face of the spray tip.
摘要:
A federated system comprising a plurality of input/output circuit card assemblies and a Firewire or other daisy-chainable bus that provides low latency communication between a host computer and peripheral devices. A single circuit card assembly is used to interface to each peripheral device, and communication between the host computer and peripheral device may be made using a plurality of different communication protocols. The input/output circuit card assembly is daisy-chainable and incorporates circuitry that implements a bus constructed to Firewire (IEEE-1394) and other electrical specifications.
摘要:
The present invention provides a microelectronic assembly wherein a semi-crystalline copolymer adhesive composition, preferably provided in the form of a film, is used to electrically interconnect a first circuit pattern on a first substrate to a second circuit pattern on a second substrate. The adhesive composition preferably includes a semi-crystalline copolymer comprising polyether and polyamide monomeric units, a tackifier, and conductive particles.
摘要:
A hot melt stick that includes a core of a moisture-curable hot melt composition and a moisture-resistant shell coaxial with the core. The shell includes one or more ethylene-containing copolymers that are compatible with the core upon melting. The hot melt stick is adapted for delivery to the melting chamber of a hot melt applicator.
摘要:
A computer-controlled imaging system for providing a realistic representation of a three-dimensional scene on a two-dimensional medium in which multiple objects, viewed from several aspects and which may be combined informing a scene, are stored in digital form on mass storage device is allocated amongst plural channels. A field-of-view computer controls the read out of the stored objects into a buffer memory where they become available for processing by a pipeline processor which is capable of warping the image in accordance with instructions from the field-of-view computer. These images in each channel are then arranged in an order of range from a viewer whereby more remote images are occluded by closer images. The images from all channels are then fed in raster scan format to a scene construction module where CGSI and special effects can be added to the composite scene prior to being fed to video display equipment.
摘要:
A wide field-of-view simulator heads-up display provides images to a user along an optical axis. A HUD CRT provides images of a predetermined design wavelength, while rear projection screen CRTs provide out-of-window scenery that does not contain the predetermined design wavelength. A curved holographic combiner is mounted on the optical axis with a reflective hologram on a concave surface covered with a urethane overcoat. The convex surface has an antireflective coating. A tilted beamsplitter cooperates with a folding mirror in a relay optical system for providing a virtual image of the HUD CRT for reflection from the holographic combiner.
摘要:
One-part moisture-curable polyurethane adhesive, coating, sealant, or casting compositions containing a blend of isocyanate-functional prepolymer, terpene-phenolic resin, and silane compound. The compositions adhere to a variety of unprimed substrates, and resist moisture and UV exposure.