[EN] PROCESSES FOR PREPARING COMPLEXES COMPRISING RHODIUM(II) AND CARBOXYLATE LIGANDS<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPLEXES COMPRENANT DU RHODIUM(II) ET DES LIGANDS CARBOXYLATE
申请人:STOCKHOLM UNIV HOLDING AB
公开号:WO2019025575A1
公开(公告)日:2019-02-07
There is provided herein a process for the preparation of a complex of formula (I): Rh(II)2 Xn, wherein X and n have meanings provided in the description, comprising the step of reacting: (a) a source of Rh(III); and (b) a source of X, wherein the reaction is performed in the presence of: (c) a suitable reducing agent, and wherein the reaction is performed under basic conditions.
The present invention relates to a gas-barrier resin composition, including: a gas-barrier resin (A) having an oxygen permeability coefficient of 1.0×10-14 (cm3·cm/cm2·s·Pa) or less; and a copolymer (B) containing monomer structural units represented by the formula (1), the formula (2), and the formula (3):
where: R1 represents a hydrogen atom or a methyl group; R2 represents a hydrocarbon group having 1 to 20 carbon atoms that may be substituted with a halogen atom, a hydroxy group, an alkoxy group, or an amino group; l, m, and n represent numerical values representing molar proportions of the respective monomer structural units, and n may represent 0; and p represents an integer of from 1 to 4, wherein a ratio of a mass of the copolymer (B) to a total mass of the gas-barrier resin (A) and the copolymer (B) is from 1 mass% to 40 mass%. Preferred as the gas-barrier resin (A) are a vinyl alcohol-based resin (A1), a polyamide-based resin (A2), and a polyester-based resin (A3). The present invention can provide a resin composition ameliorated in low flexibility and low impact resistance, which are drawbacks of a gas-barrier resin, without impairing excellent gas barrier properties of the gas-barrier resin.
Resin film, production method thereof, polarizing plate and liquid crystal display device
申请人:Fukagawa Nobutaka
公开号:US20070290168A1
公开(公告)日:2007-12-20
A resin film has a photoelastic coefficient of from 0 to 30×10
−8
cm
2
/N; and Re satisfying the following formulae (1) to (4):
20 nm<
Re
(548)<300 nm : Formula (1)
0.5<
Re
(446)/
Re
(548)<1 : Formula (2)
1.0<
Re
(629)/
Re
(548)<2.0 : Formula (3)
0.1%≦[
Re
(548) at 25° C., 10% RH−
Re
(548) at 25° C., 80% RH}/
Re
(548) at 25° C., 60% RH]≦20%, : Formula (4)
wherein Re(λ) represents an in-plane retardation at a wavelength of λ.
US7976914B2
申请人:——
公开号:US7976914B2
公开(公告)日:2011-07-12
Chromium(III) Octaethylporphyrinato Tetracarbonylcobaltate: A Highly Active, Selective, and Versatile Catalyst for Epoxide Carbonylation
作者:Joseph A. R. Schmidt、Emil B. Lobkovsky、Geoffrey W. Coates
DOI:10.1021/ja051874u
日期:2005.8.1
of a tetracarbonylcobaltate anion and an octahedral chromium porphyrin complex axially ligated by two THF ligands. Regarding the carbonylation of epoxides to beta-lactones, catalyst 1 exhibits excellent turnover numbers (up to 10,000) and turnover frequencies (up to 1670 h(-1)), with regioselective carbonyl insertion occurring between the oxygen and the sterically less hindered carbon of the epoxide