Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide a light gas stream and an olefin rich stream. Oxygenates are absorbed from the olefin rich stream into a water wash stream to provide an oxygenate rich water wash stream and a washed olefin stream. The washed olefin stream can then be oligomerized.

Abstract: A poly(vinyl phosphonate) amine salt flame retardant compound and methods of preparation. Flame retarded resin compositions containing poly(vinyl phosphonate) amine salts are also provided.

Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide an ethylene stream and a olefin rich stream. Acetylenes in the ethylene stream are converted to ethylene in the presence of hydrogen to provide a concentrated ethylene stream that can be oligomerized.

Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide a light gas stream and a olefin rich stream. Oxygenates are absorbed from the olefin rich stream into a water wash stream to provide an oxygenate rich water wash stream and a washed olefin stream. Oxygenates are then adsorbed from the washed olefin rich stream, so the deoxygenated stream can then be oligomerized.

Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide a light gas stream and an olefin rich stream. Oxygenates are absorbed from the olefin rich stream into a water wash stream to provide an oxygenate rich water wash stream and a washed olefin stream. The washed olefin stream can then be oligomerized.

Abstract: A process for preparing an olefin stream for oligomerization comprises fractionating an olefin stream to provide a light gas stream and a olefin rich stream. The olefin rich stream is selectively hydrogenated to convert diolefins to mono-olefins and provide a mono-olefin stream and oligomerizing the mono-olefin stream over an oligomerization catalyst to provide an oligomerized stream.

Abstract: A process is provided for preparing a hydrocarbon stream for oligomerization. The process strips dimethyl ether from an olefin stream using a stripping column. Lighter olefins such as C3? olefins are also removed. The C4+ olefins can then be sent for further processing including selective hydrogenation followed by oligomerization.

Abstract: Aminoalkyl piperazine (poly) pyrophosphates as effective flame retardants and thermoplastic polymer resins containing such flame retardants. These flame retarded resins are particularly useful in electrical and electronic components, such as casing or coverings for metal wires or cables.

Abstract: The present invention provides fire-retarded rigid polyurethane foam comprising the reaction product of polyol and isocyanate foam forming components and a dialkyl phosphorus-containing compound, namely a reactive mono-hydroxyl-functional dialkyl phosphinates, as flame retardant, serving as highly efficient reactive flame retardant in said rigid polyurethane foam.

Abstract: The present invention provides fire-retarded rigid polyurethane foam comprising the reaction product of polyol and isocyanate foam forming components and a dialkyl phosphorus-containing compound, namely a reactive mono-hydroxyl-functional dialkyl phosphinates, as flame retardant, serving as highly efficient reactive flame retardant in said rigid polyurethane foam.

Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.

Abstract: There is provided herein a flame retardant composition containing a thermosetting resin and a phosphorus-containing polysiloxane flame retardant, which flame retardant composition can be used in prepregs, laminate, bonding sheets and printed wiring boards.

Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, semi-rigid and rigid polyurethane and polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.

Abstract: The present invention provides novel cyclic phosphorus-containing compounds, namely hydroxyl-functional phospholene-1-oxides, serving as highly efficient reactive flame retardants in urethane systems, particularly in flexible polyurethane foams, rigid polyurethane foams and rigid polyisocyanurate foams. The invention further provides fire-retarded polyurethane compositions comprising said hydroxyl-functional phospholene-1-oxides.

Abstract: There is provided herein a flame retardant and curing agent compound for curing thermosetting resins, e.g., epoxy resins, a composition comprising a thermosetting resin, e.g., an epoxy resin and the curing agent, an article comprising the curing agent, and a method of making the curing agent.

Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.

Abstract: There is provided herein a composition containing (A) a phosphorus-containing aromatic polyester of the general formula (I) described herein which has a weight average molecular weight of from 1,000 to 20,000 and which is concurrently a flame retardant O and an active ester curing agent, and, (B) a solvent, such as a solvent commonly used in thermosetting resin formulations and copper-cias laminate preparation.

Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.

Abstract: The invention relates to a process for preparing bromine-containing polymer, comprising a Friedel-Crafts alkylation reaction of tetrabromoxylylene dihalide, or tetrabromoxylylene dihalide in combination with pentabromobenzyl halide, with a reactant having one or more six-membered aromatic rings, wherein the reaction takes place in a solvent in the presence of a Friedel-Crafts catalyst, and isolating from the reaction mixture the bromine-containing polymer. The so-formed polymers and their use as flame retardants form additional aspects of the invention.

Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates, serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the mono-hydroxyl-functional dialkyl phosphinates with polyol and isocyanate foam forming components.