5618930 Phthalocyanine compound and method for making, nitro-substituted phthalocyanine compound, amino-substituted phthalocyanine compound, phthalocyanine-containing polymer and method for making, catalyst, and optical recording medium

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5618930 PHTHALOCYANINE COMPOUND AND METHOD FOR MAKING, NITRO-SUBSTITUTED PHTHALOCYANINE COMPOUND, AMINO-SUBSTITUTED PHTHALOCYANINE COMPOUND, PHTHALOCYANINE-CONTAINING P O L Y M E R A N D M E T H O D FOR MAKING, CATALYST, AND OPTICAL RECORDING MEDIUM Kimura Mutsumi; Shirai Hirofus; Koyama Toshiki; Hanabusa Kenji; Kubota Yuichi Ueda, JAPAN assigned to Shirai Hirofus; TDK Corporation A novel phthalocyanine compound having improved solubility and high purity and containing a polymerizable vinyl group within its molecule is provided. Intermediates to this phthalocyanine compound also have improved solubility and high purity. Further, with the novel phthalocyanine compound used as a starting monomer, a novel polymer is obtained which has a high content of (metal) phthalocyanine and is easy to control the orientation of phthalocyanine rings. The polymer having improved solubility and high purity is expected of use as functional material such as catalysts and recording material.

5618958 CHIRALRHENIUM CATALYSTS AND PROCESSES FOR PREPARING THE SAME Tucker Charles E; Davenport Kenneth G Corpus Christi, TX, UNITED STATES assigned to Hoechst Celanese Corporation A novel catalyst comprising the formula: (*See Patent for Tabular Presentation*) PS wherein L is

selected from the group consisting of (a) (R1)(AL) wherein R1 is an alkyl side chain containing at least one carbon-rhenium covalent bond, and AL is a molecule having C2 to C50, and has at least one hetero atom selected from the group consisting of N, O, S, and P wherein there is at least one hetero-rhenium dative bond, and has at least one chiral center, and (b) RAL is a straight or branched chain alkyl or arylalkyl group containing C2 to C50 and containing at least one heteroatom selected from the group consisting of N, O, S, and P, with the proviso that said alkyl group contains at least one carbon-rhenium covalent bond and at least one hetero-rhenium dative bond,and has at least one chiral center: and n is an integer which is 2, 3, 4,or 5 and which has utility in areas such as epoxidation of olefins.

5618974 CATALYST FOR PRODUCTION OF METHACRYLIC ACID AND METHOD

FOR PRODUCTION OF M E T H A C R Y L I C A C I D BY T H E U S E OF THE CATALYST Kurimoto Iku; Onodera Hide; Aoki Yukio Hyogo, JAPAN assigned to Nippon Shokubai Co Ltd A catalyst for the production of methacrylic acid by the vapor-phase catalyst oxidation and/or oxidative dehydrogenation of at least one compound selected rom the group consisting of methacrolein, isobutyl aldehyde, and isobutyric acid and a method for the production of methacrylic acid by the use of this catalyst are provided. The catalyst of this invention comprises (A) a composite oxide having Mo and P as essential components and used for the production of methacrylic acid by vapor-phase catalytic oxidation and/or oxidative dehydrogenation of methacrolein, isobutyl aldehyde, and/or isobutyric acid and (B) a solid acid having acid strength (Ho) of not more than -11.93. Since this catalyst excels in catalytic