Eastman Chemical Company

Huntsman International LLC

Yun-Shan Liu

Thomas Allen Puckette

Jody Lee Rodgers

Sachchida Nand Singh

Lifeng Wu

Yangjun Cai

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

Polyurethane insulation foam composition comprising a stabilizing compound

A process for removing degradation acids from a catalyst solution comprising a phosphorus-containing hydroformylation ligand used in a hydroformylation reaction is described. The process involves using a supported epoxy compound. Also described is a hydroformylation process that includes the degradation acids removal process.

Process for removing degradation acids from hydroformylation reactions

Novel trivalent organophosphite ligands having the structure of general formula (I): wherein R is an alkyl or aryl group containing 1 to 30 carbon atoms; Arand Arare aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these ligands with a Rh metal show an unusual 'ligand acceleration effect' for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.

Phosphite containing catalysts for hydroformylation processes

Novel fluorophosphite compounds having the structure of general formula (I): where Arand Arare aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these compounds with a Rh metal show an unusual 'ligand acceleration effect' for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.

Fluorophosphite containing catalysts for hydroformylation processes

Novel trivalent organophosphonite ligands having the structure of general formula (I): wherein R is an alkyl or aryl group containing 1 to 30 carbon atoms; Arand Arare aryl groups containing 4 to 30 carbon atoms; R1 to R6 are H or alkyl or aryl hydrocarbon radicals containing 1 to 40 carbon atoms; and X is a connecting group or a simple chemical bond, were developed and found to be very active for hydroformylation processes for ethylenically unsaturated substrates. Catalyst solutions prepared from these ligands with a Rh metal show an unusual 'ligand acceleration effect' for simple alkenes, i.e., the hydroformylation activity increases as the concentration of ligand increases, and are capable of producing linear or branched aldehydes under typical hydroformylation conditions.

Phosphonite containing catalysts for hydroformylation processes

Disclosed are catalyst solutions for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising one or more phosphonite ligands, rhodium, and a hydroformylation solvent. Also disclosed is a process for preparing aldehydes with variable normal- to iso-aldehyde ratios comprising contacting an olefin, hydrogen, and carbon monoxide with one or more phosphonite ligands, rhodium, and a hydroformylation solvent. The phosphonite-based catalyst solutions provide the ability to manipulate the normal- to iso-aldehyde ratio by varying one or more process variables including carbon monoxide partial pressure, temperature, and gram moles ligand to gram atoms rhodium.

Phosphonite-containing catalysts for hydroformylation processes

There are disclosed novel homopolymers of 5-aryl-2-norbornene, and novel interpolymers of 5-aryl-2-norbornene with at least one other cyclic or acyclic alkene, and hydrogenated hydrocarbon resins resulting from hydrogenation of the homopolymers and interpolymers. The products are particularly useful as tackifiers. Also disclosed is a novel process for preparing the homopolymers and interpolymers of the 5-aryl-2-norbornene, wherein there is used as the polymerization catalyst, a Friedel-Crafts catalyst, such as aluminum chloride or boron trifluoride.

Growing community of inventors

College Station, TX, United States of America

Yun-Shan Liu