Abstract: A yellow-resistant vinyl film laminate comprising a plasticized polyvinylchloride layer and a UV cured top which contains active UV-activatable, free radical-generating species, wherein the free radical-generating species and the plasticizer are sufficiently immiscible so as to avoid reactions in the presence of UV light which produce yellowing of the polyvinylchloride layer.

Abstract: Aqueous latices adapted to forming visible light transparent, coherent polymeric films, e.g. in laminates, as protective coatings or as adhesives, comprising colloidal particles of a UV-absorbing polymer less than 5 micrometers in diameter. Useful UV-absorbing polymer include homopolymers and copolymers of vinyl-functionalized monomer of benzotriazole or benzophenone and mixtures with plasticizer and/or coalescing agent. Plasticizer and coalescing agents are useful for providing polymer with reduced glass transition temperature to facilitate coalescence of polymer particles into coherent films. Useful additives for the latices of this invention include wetting agents, surfactants, and crosslinking agents, anti-oxidants and radical scavengers. The latices of this invention are particularly useful in providing clear, thin coatings on windows, tags, labels, flooring, tents, awnings, containers and other UV-susceptible substrates.

Abstract: Chiral, nonracemic compounds of the general formula: ##STR1## wherein n=1 or 2, Y is a hydrogen, fluorine, chlorine or bromine atom, R' is an alkyl or alkoxy group having three to fifteen carbons, and R is an alkyl group having three to fifteen carbons, which are useful as ferroelectric liquid crystal components having high polarization are described. Also described are compounds of the same general formula in which X is OH, which are useful as synthetic intermediates in the preparation of the FLC components of the present invention.

Abstract: Liquid crystals having the general formula: ##STR1## wherein R is an alkyl group of three to twelve carbon atoms, R' is an alkyl of five to twelve carbon atoms, and X is a chlorine atom or a fluorine atom. Preferred alkyl groups for R' are octyl. The compounds are particularly useful in mixtures with other liquid crystal compounds in which they exhibit synergistic effects.