Abstract: Disclosed herein are self-healing oligomers according to the structure [UPy-(Dm-U-Dm)(2+q)]-[A(G)(n?1)-Dm]k-Z; wherein UPy, D, m, U, q, A, G, n, k, and Z are defined and described further herein, and wherein the oligomer possesses at least 3 urethane linking groups and comprises a backbone derived from a polyether polyol, a polyester polyol, a poly(dimethylsiloxane), a disulfide polyol, or combinations thereof. Also described and claimed are various compositions containing such oligomers as part of a self-healing component, wherein such compositions also include an optional reactive monomer and/or oligomer component and a photoinitiator component. Yet further described and claimed are articles cured from the compositions elsewhere described using the oligomers elsewhere described.

Abstract: Disclosed herein are methods for synthesizing oligomer mixtures with one or more moieties capable of forming a multi-hydrogen bonding dimer. The method comprises the steps of providing certain intermediate reaction products; adding a polyol component to the intermediate reaction product to yield an oligomer mixture comprising one or more multi-hydrogen bonding groups; and further reacting the mixture with certain isocyanate-reactive compounds to yield a multi-hydrogen bonding oligomer, wherein solvents comprise less than 50% of the total by weight of all reagents used in the synthesis of the multi-hydrogen bonding oligomer. Preferably, such methods involve no separation, distillation, or isolation of any intermediate product, and as such, they are particularly useful for a continuous or one-pot synthesis.

Abstract: A car A/V playback device includes at least a signal-processing unit for compressing and storing input A/V signals as well as decompressing and reproducing stored A/V signals; a data-access unit allowing the signal-processing unit to do real-time access of signals stored therein; and a control unit for controlling modes in which the signal-processing unit and the data-access unit process signals. The car A/V playback device can be connected to a personal computer or a cable television to download a large quantity of musical works existed in the form of MP3 or CD, television programs, and pictures stored on VCD and DVD for storage on the device and direct playback on a car without the need of mounting VCD and DVD players on the car.