Abstract:
The invention is directed to a polymer composition comprising a polyolefin and a polyester containing first repeating units of general structure (I) wherein RX is an organic group having a chain length of at least 8 atoms, —n1 is the number of first repeating units in the polyester. Such polymer composition is homogeneous and may be used as an alternative for pure polyolefin showing improved printability and oxygen permeability.
Abstract:
The invention relates to a block copolymer comprising a first block of general structure formula (II) and a second block of general structure formula (III) wherein Rx is an organic group having a chain length of from 1-9 atoms; Ry is an organic group having a chain length of from 10-38 atoms; n1 is at least 2; n2 is at least 2. The invention further relates to a method for preparing such block copolymer using as a catalyst a phenoxy-imine based catalyst having general structure of formula I.
Abstract:
The present disclosure relates to a method for purifying an acid, wherein the method comprises: a) producing a crude product mixture by a partial oxidation reaction, wherein the crude product mixture comprises acrylic acid and acetic acid; b) purifying the crude product mixture by distillation using a high-boiling solvent to purify the acrylic acid; and c) purifying the crude product mixture by distillation using a low-boiling solvent to purify the acetic acid.
Abstract:
The inventions described herein relate to catalysts comprising a zeolite comprising at least one metal or ion thereof, wherein the at least one metal or ion thereof comprises barium, strontium, titanium, tungsten, or a mixture thereof, and wherein the zeolite does not comprise molybdenum, or phosphorus, and methods related thereto.
Abstract:
The invention relates to a polymerization process for the production of high density polyethylene by polymerization of ethylene in the presence of a catalyst composition comprising a chromium compound, a support material wherein the alcohol is a primary alcohol having the formula (I) wherein R, R′ and R″ are the same or different and respectively represent a linear or branched N alkyl, cycloalkyl, phenyl or phenyl containing radicals comprising from 5 to 15 carbon atoms and wherein only one of R, R′ or R″ can be a hydrogen radical and/or wherein the alcohol is a secondary alcohol and/or a secondary cyclic alcohol. The catalyst composition may also comprise a titanium compound. The high density polyethylene may be applied in the production of blow molded articles.
Abstract:
Methods for generating a purified catalyst are provided. The method includes performing a reaction in a reaction vessel to generate a liquid catalyst and reaction products, purging the reaction products using an inert gas to form a purged catalyst, freezing the purged catalyst in the reaction vessel, and applying a vacuum to the reaction vessel while the purged catalyst thaws, wherein the vacuum removes residual reaction products to form a purified catalyst. Systems for generating a purified catalyst and a purified catalyst are also provided.
Abstract:
A method of making a catalyst comprises: mixing a catalytically active component and a surfactant to form a mixture, wherein the catalytically active component comprises phosphorus; forming a gel; physically shearing the gel to form a physically sheared gel; combining the physically sheared gel with a support; and calcining the support with the physically sheared gel to form the catalyst. Another method of making a catalyst comprises: mixing a catalytically active component and a surfactant to form a mixture, wherein the catalytically active component comprises phosphorus; letting the mixture sit without mixing for greater than 1 hour to form a set mixture; subjecting the set mixture to shear to form a sheared mixture; combining the sheared mixture with a support; and calcining the support with the sheared mixture to form the catalyst.
Abstract:
The present disclosure relates to a compound comprising an aryloxy-phthalocyanine compound of group IV metals, a method for preparing said compound and an article of manufacture made therefrom.
Abstract:
The invention relates to a process for preparing a catalyst composition comprising an unsupported catalyst comprising ZrV2O7, comprising: mixing ammonium meta-vanadate and zirconyl nitrate, drying the mixture and calcining the dried mixture at a temperature range of 600-900° C. for 2-10 hours to obtain the unsupported catalyst, and mixing the unsupported catalyst with Al2O3 without heating.
Abstract translation:本发明涉及一种制备催化剂组合物的方法,所述催化剂组合物包含包含ZrV 2 O 7的无载体催化剂,其包括:将偏钒酸铵和硝酸氧锆混合,将混合物干燥并在600-900℃的温度范围内煅烧干燥的混合物2 -10小时以获得未负载的催化剂,并将未负载的催化剂与Al 2 O 3混合而不加热。
Abstract:
The present invention relates to a method for pre-treating a catalyst composition comprising contacting a medium pore aluminosilicate zeolite with an inert gas comprising water vapour or alcohol vapour at a temperature between 30° C. and the boiling temperature of water or the alcohol.