摘要:
A calixarene bisphosphite composition for use as a ligand in a transition metal-ligand complex catalyst and in a complex catalyst precursor. The ligand is especially useful in catalysts and catalyst precursors for hydroformylation processes wherein a raffinate stream comprising a mixture of alpha, beta, and iso-olefinic isomers is hydroformylated in the presence of carbon monoxide, hydrogen, and the transition metal-ligand complex catalyst to form a mixture of linear and branched aldehyde products. The complex catalyst selectively converts the alpha and beta olefin reactants more rapidly than the iso-olefin reactant resulting in an improved molar ratio of normal (linear) to branched aldehyde products. The unconverted iso-olefinic isomer is thereafter readily separated from the aldehyde product mixture.
摘要:
Methods and assemblies for improving the reaction kinetics of, conserving reactants utilized in, and/or producing a more pure reaction product of, liquid-phase reactions that involve volatile reactants and products are provided. The methods and assemblies herein provide for a feed of reaction liquid to two or more absorption zones, wherein the temperature and/or feed rate of the liquid is independently adjusted prior to introduction into at least one of the two or more absorption zones. More particularly, the temperature and feed rate of the liquid as delivered to each absorption zone can be adjusted independently to optimize the absorption of at least a portion of any gaseous reactants and byproducts from the gaseous product stream and/or to optimize reaction zone conditions. Reaction kinetics may thus be improved, or substantially maintained.
摘要:
Embodiments of the invention provide a class of mesophase separated butene/α-olefin block interpolymers with controlled block sequences. The butene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.4. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block butene/α-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (TREF'), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the butene/α-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.4.
摘要:
Embodiments of the invention provide a class of butene/α-olefin block interpolymers. The butene/α-olefin inter-polymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block butene/α-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (‘TREF’), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the butene/α-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.4.
摘要:
Phosphorus-containing compounds are disclosed which are obtainable by reacting: a benzoxazine ring-containing compound comprising the reaction product of: (A) at least one organophosphorus compound having a group selected from the group H—P═O; the group P—H and the group P—OH; and (B) at least one compound having the following Formula (I): [R′(Y)m′]m(X—O—R″)n Formula (I) wherein R′ is an organic group; Y is a functional group selected from the group consisting of hydroxy, carboxylic acid, and amine; X is a hydrocarbylene group; R″ is hydrogen or a hydrocarbyl group having from 1 to 8 carbon atoms, R is alkyl or aryl group having from 1 to 12 carbon atoms; m′, m and n are, independently, numbers equal to or greater than 1. These compounds are useful for making flame retardant epoxy and polyurethane resins and ignition resistant thermoplastic resins, each of which is useful for a variety of end uses requiring flame retardancy or ignition resistance. Flame retardant epoxy resins may be used to make electrical laminates. Flame retardant polyurethane is useful for making rigid polyurethane foam used in construction and flexible polyurethane foam used to make vehicle upholstery. Ignition resistant thermoplastic resins are useful for making television cabinets, computer monitors, printer housings, automotive parts, and housings and parts for appliances. This invention is particularly useful in end use applications in which a low bromine or low halogen content is required or desired.
摘要:
Phosphorus-containing compounds are disclosed which are obtainable by reacting: (A) at least one organophosphorus compound having a group selected from the group H—P═O; the group P—H and the group P—OH; and (B) at least one compound having the following Formula (I): [R′(Y)m′]m(X—O—R″)n Formula (I) wherein R′ is an organic group; Y is a functional group selected from the group consisting of hydroxy, carboxylic acid, and amine; X is a hydrocarbylene group; R″ is hydrogen or a hydrocarbyl group having from 1 to 8 carbon atoms, R is alkyl or aryl group having from 1 to 12 carbon atoms; m′, m and n are, independently, numbers equal to or greater than 1; and (C) a thermosetting or thermoplastic composition. These compounds are useful for making flame retardant epoxy and polyurethane resins and ignition resistant thermoplastic resins, each of which is useful for a variety of end uses requiring flame retardancy or ignition resistance. Flame retardant epoxy resins may be used to make electrical laminates. Flame retardant polyurethane is useful for making rigid polyurethane foam used in construction and flexible polyurethane foam used to make vehicle upholstery. Ignition resistant thermoplastic resins are useful for making television cabinets, computer monitors, printer housings, automotive parts, and housings and parts for appliances. This invention is particularly useful in end use applications in which a low bromine or low halogen content is required or desired.
摘要:
Phosphorus-containing compounds are disclosed which are obtainable by reacting: (A) at least one organophosphorus compound having a group selected from the group H—P═O; the group P—H and the group P—OH; and (B) at least one compound having the following Formula (I): [R′(Y)m′]m(X—O—R″)n Formula (I) wherein R′ is an organic group; Y is a functional group selected from the group consisting of hydroxy, carboxylic acid, and amine; X is a hydrocarbylene group; R″ is hydrogen or a hydrocarbyl group having from 1 to 8 carbon atoms, R is alkyl or aryl group having from 1 to 12 carbon atoms; m′, m and n are, independently, numbers equal to or greater than 1. These compounds are useful for making flame retardant epoxy and polyurethane resins and ignition resistant thermoplastic resins, each of which is useful for a variety of end uses requiring flame retardancy or ignition resistance. Flame retardant epoxy resins may be used to make electrical laminates. Flame retardant polyurethane is useful for making rigid polyurethane foam used in construction and flexible polyurethane foam used to make vehicle upholstery. Ignition resistant thermoplastic resins are useful for making television cabinets, computer monitors, printer housings, automotive parts, and housings and parts for appliances. This invention is particularly useful in end use applications in which a low bromine or low halogen content is required or desired.
摘要:
The invention relates to functionalized interpolymers derived from base olefin interpolymers, which are prepared by polymerizing one or more monomers or mixtures of monomers, such as ethylene and one or more comonomers, to form an interpolymer products having unique physical properties. The functionalized olefin interpolymers contain two or more differing regions or segments (blocks), resulting in unique processing and physical properties.
摘要:
Unique copolymers comprising propylene, ethylene and/or one or more unsaturated comonomers are characterized as having: at least one, preferably more than one, of the following properties: (i) 13C NMR peaks corresponding to a regio-error at about 14.6 and about 15.7 ppm, the peaks of about equal intensity, (ii) a B-value greater than about 1.4 when the comonomer content of the copolymer is at least about 3 wt %, (iii) a skewness index, Six, greater than about −1.20, (iv) a DSC curve with a Tme that remains essentially the same and a Tmax that decreases as the amount of comonomer in the copolymer is increased, and (v) an X-ray diffraction pattern that reports more gamma-form crystals than a comparable copolymer prepared with a Ziegler-Natta catalyst These polypropylene polymers are made using a nonmetallocene, metal-centered, heteroaryl ligand catalyst. These polymers can be blended with other polymers, and are useful in the manufacture of films, sheets, foams, fibers and molded articles.
摘要翻译:包含丙烯,乙烯和/或一种或多种不饱和共聚单体的独特共聚物的特征在于具有以下特性中的至少一个,优选多于一个:(i)对应于约14.6和约约14.6的区域误差的13 C NMR峰 15.7ppm,当共聚物的共聚单体含量为至少约3重量%时,约等于强度的峰,(ii)B值大于约1.4,(iii)偏度指数为6,大于约-1.20 ,(iv)具有保持基本相同的Tme的DSC曲线和随着共聚物中共聚单体的量增加而减小的Tmax,以及(v)报告更多的γ型晶体的X射线衍射图比 用齐格勒 - 纳塔催化剂制备的可比共聚物这些聚丙烯聚合物使用非金属茂金属中心的杂芳基配体催化剂制备。 这些聚合物可以与其它聚合物共混,并且可用于制造薄膜,片材,泡沫,纤维和模制品。
摘要:
The present invention includes a composition comprising a propylene-alpha olefin copolymer having at least seventy weight percent units derived from propylene, and from ten to twenty five weight percent units derived from ethylene or a C4-C10 alpha olefin, the propylene-alpha olefin copolymer exhibiting a heat of fusion of less than 37 Joules/gram and a melt flow rate of from 0.1 to 100 gram/10 minutes; and a styrenic block copolymer, wherein the weight ratio of the propylene-alpha olefin copolymer to the styrenic block copolymer is from 3:7 to 7:3. The composition exhibits tensile modulus of less than 20 MPa, tensile strength of at least 5 MPa, and elongation at break of at least 900% with low relative immediate set.