Abstract: A security locking device includes a clasp, a tension spring having a first tag end affixed to the clasp and a second tag end movable between an open position released from the clasp forming an open loop and a closed position retained by the clasp forming a closed loop, a clasp cover mounted to the clasp for movement between a first position away from the clasp and a second position enclosing the clasp, the first tag end of the tension spring, and the second end of the tension spring in the closed position thereof retained by the clasp forming the closed loop. The tension biases the second tag end into the open position.

Abstract: Chiral organic polymers doped with or appended by nonlinear optical dyes are disclosed. The use of chiral polymers produces a more stable noncentrosymmetric environment for the dye molecules resulting in unexpectedly long relaxation times as compared with previously used organic polymers. In addition, the NLO/chiral polymer materials exhibit high electro-optical coefficients (r33), high nonlinear optical coefficients (d33), improved long-term thermal stability, and at the same time retain the processing advantages associated with organic polymers. Thus, the present NLO/chiral polymer materials are extremely well-suited for use in second-order nonlinear optical and optoelectronics devices.

Abstract: Linear polycarbonate polymers are disclosed which contain spirobiindanol derivatives regularly alternating in the polymeric chain with derivatives of dihydroxyaromatic compounds, such as biphenols and bisphenols. These clear spirobiindane-dihydroxyaromatic polycarbonates exhibit high glass transition temperatures and exhibit good mechanical and optical properties. In addition, the alternating polycarbonates are thermally stable and remain ductile even at temperatures greater than 150° C. The polycarbonates are therefore useful in high temperature processing and optical applications. The disclosed polycarbonates exhibit indices of refraction that differ sufficiently from those of randomly distributed SBI/BPA polycarbonates to make them useful in the manufacture of optical waveguides.

Abstract: Linear indane polycarbonate polymers, both homopolymers and copolymers derived from biphenols and bisphenols are disclosed. The indane polycarbonates have high glass transition temperatures and exhibit good mechanical properties, good thermal stability, and good ductility even at temperatures greater than 15.degree. C. making them useful for high temperature processing applications. In addition, the clear indane polycarbonate compositions exhibit good optical properties.

Abstract: Optically active polycarbonate, polyester, and polyurethane polymers prepared from monomers containing optically pure spirobiindane moieties are disclosed. The chiral spirobiindane polymers are of high molecular weight and exhibit high optical rotations. In addition, the optically active polymers are useful in the fabrication of optoelectronics devices and as polarizing coatings or filters or as polarized lenses.

Abstract: Optically active poly(aryl)ether polymers prepared from monomers containing optically pure spirobiindane and/or indane moieties are disclosed. The chiral poly(aryl)ether polymers are of high molecular weight and exhibit high optical rotations. In addition, the polyethers are thermally stable at high temperatures and exhibit excellent hydrolytic resistance making them useful in high temperature processing applications, in the fabrication of optoelectronics devices, and as polarizing coatings and filters.

Abstract: Optically active polycarbonate, polyester, and polyurethane polymers prepared from monomers containing optically pure indane moieties are disclosed. The chiral indane polymers are of high molecular weight and exhibit high optical rotations. In addition, the optically active polymers are useful in the fabrication of optoelectronics devices and as polarizing coatings or filters or as polarized lenses.

Abstract: Linear indane polycarbonate polymers, both homopolymers and copolymers derived from biphenols and bisphenols are disclosed. The indane polycarbonates have high glass transition temperatures and exhibit good mechanical properties, good thermal stability, and good ductility even at temperatures greater than 150.degree. C. making them useful for high temperature processing applications. In addition, the clear indane polycarbonate compositions exhibit good optical properties.

Abstract: Novel polymer compositions that comprise high 1,2-enrichment are described herein. Said polymer compositions have up to about 50% by weight of 1,2 units wherein about 25% to about 75% by weight of all 1,2 units are present in the polymer backbone. Additionally a novel process is disclosed for producing polymer compositions by dissolving a polydiene in a monomeric diene during emulsion polymerization conditions.