Abstract: An electrophotoconductive element which may be irradiated with laser light having a wavelength (?) of about 350-500 nm which contains titanylphthalocyanine (TiOPC), which may be polymorphic. The electrophotoconductive element may therefore include an electroconductive support, a charge generation layer containing TiOPC, a charge transport layer and a source of laser light having a wavelength of about 350-500 nm. The charge transport layer may also exhibit light transmitting properties over the indicated laser wavelengths.

Abstract: A device for repairing automobile, and other vehicle, exhaust pipes that have been broken. The device comprises three major components, four sections of angle steel, four U-bolts, and two thread bolts. The angle steel sections form a trough and a cap. In use, the broken exhaust pipe lies inside the trough formed by the first two sections of angle steel and snugly nestles into the angle. The U-Bolts hold the angle steel in place and each angle steel section can move along the thread bolts. The U-Bolt is tightened where the break in the exhaust pipe exists. The U-Bolt may also be loosened to allow the two exhaust pipe pieces to be pulled apart. The device allows for a clean repair of an exhaust pipe without the need for tape, hangers, welding, or other temporary and/or inefficient measures.

Abstract: Multi-arm star polymers are derived from silicon containing dendrimers and have arms containing the moiety where each R′ can be the same or different and is an alkyl group containing 1-6 carbon atoms such as methyl and ethyl or an aryl group such as phenyl; R″ is alkylene radical —(CH2)a— in which a has a value of 2 or 3; and R′″ is the —(CH2)bCH3 group in which b has a value of 1-50. These compositions can be used for dissolving metals and other electrophiles.