Abstract: Substituted-1-arylpyrrole compounds of general formula (I) below, are useful as pesticides, in particular for the control of insects, arachnids, and nematodes. Processes to make the compounds and intermediates used for their preparation are described. Additionally, compositions containing the compounds and methods of use therefore are provided. Preferred compounds are the compounds of general formula (I) ##STR1## wherein typically preferred substituents are: X is halogen or a group R.sup.5 S(O).sub.n, in which n is 0, 1, or 2 and R.sup.5 is CH.sub.3, CF.sub.3, CCl.sub.3, CF.sub.2 Cl, CFCl.sub.2, CF.sub.2 Br, CHF.sub.2, CHCl.sub.2 or CHClF;R.sup.1 is H, F, Cl, Br, OCH.sub.3, SCH.sub.3, or CH.sub.3 optionally substituted;R.sup.2 is CN;R.sup.3 is H, F, Cl, Br, OCH.sub.3, or CH.sub.3 optionally substituted;Y is CF.sub.3, CF.sub.3 O, H, F, Cl or Br;X.sup.1 and X.sup.4 are individually H, F, Cl, Br, CH.sub.3, OCH.sub.3 or SCH.sub.3 ; andX.sup.2 and X.sup.3 are each H.

Abstract: Substituted-1-arylpyrrole compounds of general formula (I) below, are useful as pesticides, in particular for the control of insects, arachnids, and nematodes. Processes to make the compounds and intermediates used for their preparation are described. Additionally, compositions containing the compounds and methods of use therefore are provided. Preferred compounds are the compounds of general formula (I) ##STR1## wherein typically preferred substituents are: X is halogen or a group R.sup.5 S(O).sub.n, in which n is 0, 1, or 2 and R.sup.5 is CH.sub.3, CF.sub.3, CCl.sub.3, CF.sub.2 Cl, CFCl.sub.2, CF.sub.2 Br, CHF.sub.2, CHCl.sub.2 or CHClF;R.sup.1 is H, F, Cl, Br, OCH.sub.3, SCH.sub.3, or CH.sub.3 optionally substituted;R.sup.2 is CN;R.sup.3 is H, F, Cl, Br, OCH.sub.3, or CH.sub.3 optionally substituted;Y is CF.sub.3, CF.sub.3 O, H, F, Cl or Br;X.sup.1 and X.sup.4 are individually H, F, Cl, Br, CH.sub.3, OCH.sub.3 or SCH.sub.3 ; andX.sup.2 and X.sup.3 are each H.

Abstract: Variable-transmittance articles, such as an ophthalmic lens, are prepared by applying to or incorporating within the article a combination of two (or more) organic photochromic substances exhibiting different activated absorption maxima within the matrix in which the substances are incorporated. One organic photochromic substance has an absorption maximum within the range of between greater than 590 and about 700 nanometers. The other organic photochromic substance exhibits at least one absorption maximum and preferably two absorption maxima, within the range of between about 400 and less than 590 nanometers. The organic photochromic substances are used in a proportion to achieve a near neutral coloring of the article. The article may also be tinted with a light compatible tint (dye) to achieve a more neutral color when the photochromic substances are activated.

Abstract: Described are spirobenzoxazine pyrrolo pyridine compounds. Also described is the use of such compounds as photochromic substances in organic host materials such as an organic transparent plastic material, e.g., an ophthalmic lens, to impart a photochromic response thereto.

Abstract: Variable-transmittance articles, such as an ophthalmic lens, are prepared by applying to or incorporating within the article a combination of two (or more) organic photochromic substances exhibiting different activated absorption maxima within the matrix in which the substances are incorporated. One organic photochromic substance has an absorption maximum within the range of between greater than 590 and about 700 nanometers. The other organic photochromic substance exhibits at least one absorption maximum and preferably two absorption maxima, within the range of between about 400 and less than 500 nanometers. The organic photochromic substances are used in a proportion to achieve a near neutral coloring of the article. The article may also be tinted with a light compatible tint (dye) to achieve a more neutral color when the photochromic substances are activated.

Abstract: Described are novel spiro(benzindolino) benzoxazine compounds and compositions containing such compounds. Photochromic sprio(benzindolino) benzoxazines may be incorporated into plastic host materials to produce photochromic articles.

Abstract: Described are spiro (benzidoline) pyrido benzoxazine and spiro (benzindoline) naphthoxazine photochromic compounds and their use in plastic hosts to impact a photochromic response thereto.

Abstract: Described are photochromic spiro (oxazolidine) substituted benzoxazine photochromic compounds and their use in plastic hosts to impart a photochromic response thereto. More particularly, there are described spiro (oxazolidine) pyrido benzoxazine and spiro (oxazolidine) naphthoxazine compounds and their use in substrates such as polymerizates of allyl digylcol carbonate.