Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R1)P—N(R3)—P(R4)??(IV).

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4)??(VI) wherein: the R9 and R10 groups are independently selected from optionally substituted alkyl or heteroalkyl groups; the R3 group is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the arylenedioxy, arylenedimercapto or arylenediamino structure.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4)??(VI) wherein: the R9 and R10 groups are independently selected from optionally substituted alkyl or heteroalkyl groups; the R3 group is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the arylenedioxy, arylenedimercapto or arylenediamino structure.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R1)P—N(R3)—P(R4)??(IV).

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI): (R9)(R10)P—N(R3)—P(R4)??(VI) wherein: the R9 and R10 groups are independently selected from optionally substituted alkyl or heteroalkyl groups; the R3 group is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy or alkylenedimercapto structure which is bound to the phosphorus atom through the two oxygen or sulphur atoms of the alkylenedioxy or alkylenedimercapto structure or an optionally substituted arylenedioxy or arylenedimercapto structure which is bound to the phosphorus atom through the two oxygen or sulphur atoms of the arylenedioxy or arylenedimercapto structure.

Abstract: A process for the preparation of acylated secondary alcohol alkoxylates and a process for making secondary alcohol alkoxy sulfates comprising the steps of:— preparing secondary alcohol alkoxylates by the afore-mentioned process; and sulfating the secondary alcohol alkoxylates is described.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R1)P—N(R3)—P(R4)??(IV).

Abstract: The present invention relates to catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using those ligands.

Abstract: The present invention relates to ligands and catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using said ligands, the ligands having the general formula (I): (R1)2P—P(R1)m(R2)n?N(R3)??(I) wherein R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R1 groups are independently selected from an optionally substituted aromatic group bearing a polar substituent on at least one of the ortho-positions; and the R2 groups are independently selected from hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl groups with the proviso that when the group is aromatic it does not contain a polar substituent at any of the ortho-positions; with the proviso that m is 0 or 1, n is 1 or 2 and the total of m+n is 2.

Abstract: The present invention relates to catalyst systems and a process for the simultaneous trimerization and tetramerization of olefinic monomers using those ligands.

Abstract: The present invention provide a process for the production of compounds of general formula (I), Y—CH2CH2—Z (I) wherein Y and Z are functional groups independently selected from the group consisting of a hydroxyl group and R1R2N and wherein R1 and R2 may be the same or different and are functional groups selected from the group consisting of hydrogen and substituted or non-substituited alkyl groups comprising 1 to 8 carbon atoms, or R1R2N is a cyclic compound selected from the group of aromatic and non-aromatic cyclic compounds optionally comprising one or more heteroatoms in addition to the nitrogen atom, said process comprising the steps of: (i) reacting carbon monoxide and an amine in the presence of oxygen to provide a compound of general formula (II) wherein R1 and R2 or R1R2N are as defined above and X is selected from the group consisting of R1R2N and R3O, wherein R3 is selected from alkyl groups comprising 1 to 8 carbon atoms; and (ii) converting the compound of general formula (II) into a compound of

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R1)P—N(R3)—P(R4)??(IV).

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (VI); (R9)(R10)P—N(R3)—P(R4)??(VI) wherein: the R9 and R10 groups are independently selected from optionally substituted alkyl or heteroalkyl groups; the R3 group is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the arylenedioxy, arylenedimercapto or arylenediamino structure.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting i) a compound having the general formula (III); (R1)(R2)P—N(R3)—R5??(III); and ii) a compound of the formula X—P(R4), preferably at a temperature in the range of from ?30 to 200° C.

Abstract: A process for the preparation of acylated secondary alcohol alkoxylates and a process for making secondary alcohol alkoxy sulfates comprising the steps of: preparing secondary alcohol alkoxylates by the afore-mentioned process; and sulfating the secondary alcohol alkoxylates is described.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (II); P(R1)(R2)—P(R4)?N(R3)??(II) wherein: the R1 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R2 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the pho

Abstract: A catalyst precursor composition comprising: a source of chromium, molybdenum or tungsten; a first ligand having the general formula (R1)(R2P—X—P(R3)(R4); and a second ligand having the general formula (R1?)(R2?)P—X?—P(R3?)(R4?). The present invention also relates to a catalyst system comprising the catalyst precursor composition of the present invention and a cocatalyst. The present invention further relates to a process for the trimerization and tetramerization of olefinic monomers, particularly the trimerization and tetramerization of ethylene to 1-hexene and 1-octene, wherein the process comprises contacting at least one olefinic monomer with the catalyst system of the present invention.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (II); P(R1)(R2)—P(R4)?N(R3)??(II) wherein: the R1 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R2 group is selected from a hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl and substituted heterohydrocarbyl group; the R3 is selected from hydrogen, a hydrocarbyl group, a substituted hydrocarbyl group, a heterohydrocarbyl group, a substituted heterohydrocarbyl group, a silyl group or derivative thereof; the R4 group is an optionally substituted alkylenedioxy, alkylenedimercapto or alkylenediamino structure which is bound to the phosphorus atom through the two oxygen, sulphur or nitrogen atoms of the alkylenedioxy, alkylenedimercapto or alkylenediamino structure or an optionally substituted arylenedioxy, arylenedimercapto or arylenediamino structure which is bound to the ph

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting i) a compound having the general formula (III); (R1)(R2)P—N(R3)—R5??(III); and ii) a compound of the formula X—P(R4), preferably at a temperature in the range of from ?30 to 200° C.

Abstract: The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand having the general formula (IV); (R8)(R2)P—N(R3)—P(R4)??(IV).