Abstract: Flexible composites, such as those useful as light pipes, may be effectively cured by reactions upon copolymerized alkoxysilane functionality. Improvements in the optical properties of the uncured and cured systems are found when the alkoxysilane monomer is stabilized during preparation, storage, and copolymerization with low levels of non-aromatic stable free radicals or stable free-radical precursors, such as nitroxides.

Abstract: The invention relates to improved polyacetal compositions composed of polyoxymethylene (component A) and a stabilized MBS core shell graft copolymer (component B) formed from a rubber-elastic core based on polybutadiene, and a hard graft shell.The stabilized MBS core shell graft copolymer (component B) contains a special stabilization formulation of at least one hindered phenol, a phosphite, a sulfide, and a pH buffer system.The shaped articles produced from these mixtures are particularly distinguished by an excellent low-temperature impact strength and a good heat aging performance.

Abstract: An improved process for preparing core/shell MBS modifiers is disclosed, wherein by adding feeds of the monomers which form the second and/or third stage polymers prior to completion of polymerization of the earlier stages, a process with substantially reduced polymerization time results with no loss in properties of the product. The process further includes agglomeration of the rubbery polymer to increase particle size during the polymerization process.

Abstract: Synchronization with a signal derived from code violations in periodic data block preambles, and derived using analog circuits provides for a very low jitter clock. The method involves detecting the amplitude of an analog signal derived from the preamble. The amplitude exceeds a preset value whenever a code violation is detected. The frequency of the preamble may be a fraction or a multiple of the synchronized clock.

Abstract: In a run-length coded document image process a horizontal line in textual matter is eliminated by establishing a work zone around the horizontal line and a buffer zone of predetermined width around the work zone. All black-run-length artifacts that extend outside of the buffer zone are protected, this includes protecting information in the work zone when there is a matching artifact in the opposing buffer zone (Character Reconstruction). All black items that are within the work zone and the buffer zone, and which are not protected are eliminated.

Abstract: A unified zero-reset phase is used in a dual-slope analog-to-digital converter (ADC) to: (1) derive a correction voltage to cancel any error due to offset and/or residue voltages in the components of the ADC in the subsequent integration phase and the de-integration phase; (2) reset the output of the integrator in the ADC to zero quickly when there is a overflow condition due to excessive analog input signals. The combined function is accomplished by negative feedback from the output of the comparator to the input of the buffer. The negative feedback resets the integrator output to zero quickly under overflow condition. The correction voltage is stored in the integrating capacitor and a coupling capacitor to the integrating amplifier.

Abstract: Disclosed are certain aromatic polycarbodiimides. Also disclosed is the use of an aromatic polycarbodiimide containing only aromatic carbodiimide groups as a cross-linker for a coating binder polymer bearing carboxyl groups.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: An air curing polymer composition is disclosed which contains acetoacetate functional polymer and an autoxidizable material. The composition cures on exposure to oxygen. One pack stable ambient curing compositions and a method of stabilizing acetoacetate functional groups to prevent hydrolysis are also disclosed.

Abstract: A melt calendered sheet and a process for making melt calendered sheet having excellent transparency and solvent craze resistance. Clear melt calendered sheet having a critical stress rating above 12,000 KPa, heat distortion temperature above 85.degree. C., and flexural modulus above 3,275 MPa is produced from acrylic copolymer having a melt flow rate of from about 0.3 to about 1.3 grams/10 minutes.

Abstract: The invention is a false eyelash system, for producing unknotted clusters of false eyelashes from long fibers. A plurality of long fibers are knotted around a main string with a preliminary knot. The long fibers are trimmed a distance away from the main string that corresponds to a desired eyelash length. Cement is applied to the preliminary knot and discernible distance therefrom to form a cement clot. The preliminary knot is removed by cutting through the cement clot to form unknotted clusters of false eyelashes.

Abstract: A rake (10), for smoothing sand surfaces (18A and 18B) in response to pulling the rake (10) along a longitudinal axis (22), includes an elongated head (26) that is disposed transversely to the longitudinal axis (22), and that includes first (52A) and second (52B) pluralities of blades (54A and 54B). Trailing edges (70) of each blade (54A or 54B) are disposed closer to the longitudinal axis (22) than leading edges (68), thereof; so that grains (122A and 122B) of sand are moved transversely inward toward the longitudinal axis (22). The elongated head (26) includes a front curvilinear surface (58) that raises the elongated head (26), a rear curvilinear surface (62) that irons the surface (16), and a flattened portion (66) that floats the elongated head (26) during the raking step.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.