摘要:
A selectivated molecular sieve, e.g., ZSM-22 or ZSM-23, is used as olefin oligomerization catalyst to provide product, e.g., octenes and dodecenes from butene, having a low degree of branching and hindered double bonds.
摘要:
In a process for preparing an olefinic hydrocarbon mixture comprising at least 5% by weight of mono-olefin oligomers of the empirical formula: CnH2n where n is greater than or equal to 6, a feedstock comprising n-butene and propylene in a molar ratio of about 1:0.01 to about 1:0.49 is contacted under oligomerization conditions with surface deactivated ZSM-23. The resultant mono-olefin oligomers comprise at least 20 percent by weight of olefins having at least 12 carbon atoms, wherein said olefins having at least 12 carbon atoms have an average of from about 0.8 to about 2.0 C1-C3 alkyl branches per carbon chain.
摘要:
In a process for preparing an alkylaromatic hydrocarbon composition an olefinic hydrocarbon mixture and an aromatic compound are contacted under alkylation conditions with an aromatic alkylation catalyst selected from a homogeneous acid catalyst and heterogeneous acid catalyst comprising a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstroms. The olefinic hydrocarbon mixture comprises at least 5 wt % by weight of mono-olefin oligomers of the empirical formula: CnH2n wherein n is greater than or equal to 10, the mono-olefin oligomers comprising at least 20 percent by weight of olefins having at least 12 carbon atoms, and the olefins having at least 12 carbon atoms having an average of from 0.8 to 2.0 C1-C3 alkyl branches per carbon chain. Sulfonation of the alkylaromatic hydrocarbon product produces an alkylaryl sulfonate mixture that exhibits advantageous properties, such as biodegradability and hard and cold water performance.
摘要翻译:在制备烷基芳族烃组合物的方法中,烯烃混合物和芳族化合物在烷基化条件下与选自均相酸催化剂的芳族烷基化催化剂和包含具有包括d的X射线衍射图的分子筛的多相酸催化剂接触 最大值为12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃。 烯烃混合物包含至少5重量%的以下经验式的单烯烃低聚物:<?in-line-formula description =“In-line Formulas”end =“lead”?> C n 其中n大于或等于10,单烯烃低聚物包含:其中n大于或等于10,其中n大于或等于10,单烯烃低聚物包含 至少20重量%的具有至少12个碳原子的烯烃,并且具有至少12个碳原子的烯烃具有平均0.8-2.0℃-1-3C 3 >每个碳链的烷基支链。 烷基芳族烃产物的磺化产生显示出有利性质的烷基芳基磺酸盐混合物,例如生物降解性和冷水和冷水性能。
摘要:
In a process for oligomerizing a C2 to C6 n-olefin feedstock over surface deactivated ZSM-23, the feedstock contains from about 0.1 wt % to about 25 wt % of an iso-olefin and the C12+ fraction of the oligomerized olefin product contains less than 0.5 atom % of quaternary carbon atoms.
摘要翻译:在通过表面失活的ZSM-23将C 2〜C 6向C 6正构烯烃原料进行低聚的方法中,原料含有约0.1重量%至约25重量%的 低聚烯烃产物的异烯烃和C 12 H 12 +馏分含有小于0.5原子%的季碳原子。
摘要:
A semi-crystalline biaxially oriented film comprising a copolyester which comprises repeating units derived from an aliphatic glycol, an aromatic dicarboxylic acid, and the monomer of formula (I): (I) wherein n=2, 3 or 4, Z is C═O, and wherein comonomer (I) constitutes a proportion of the glycol fraction of the copolyester and is present in an amount of at least about 4 mol % of the glycol fraction of the copolyester.
摘要:
A panel barrel hinge clip comprising a plate section and an annulus section are described. An article comprising the clip is described. A method of arresting movement of a swinging panel mounted on frame with a barrel hinge is described.
摘要:
A fish capturing device is provided. The device includes a pair of cage members having a first position in which an opening is defined therebetween through which a fish may be passed and a second position in which each of the cage members are pivoted until the cage members are nested together to form an enclosure for enclosing a fish therein. A latch is configured for latching the pair of cage members into the first position and releasing the pair of cage members into the second position. A tensioner applies tension to the pair of cage members to bias the cage members into the second position to enclose the fish within the pair of cages.
摘要:
An article of apparel including a tubular knit textile region is provided, as well as an apparel printing system for printing on regions of the tubular knit textile region and related methods. The article of apparel can include a tubular knit textile region having an internal side and an opposite external side configured to be exposed during use, a plurality of yarns in an arrangement of interlocked loops forming parallel rows and channels therebetween, and a printed ink design on its external side. The printed ink design can be formed from ink applied to the parallel rows of loops and to the channels. An apparel printing system for printing on the article of apparel can include a textile printer having a print head and a tubular platen that includes features on the platen surface to retain and register the tubular knit textile on the platen surface during printing.
摘要:
A method for manufacturing a cushioning element may include securing a plurality of pad components to pins that extend outward from a base, each of the pins having a non-circular short-axis cross-sectional shape. The pad components are then compressed between the base and a material layer to bond the pad components to the material layer. In some configurations, the pins may have an elongate short-axis cross-sectional shape. In some configurations, the pins may have an elliptical short-axis cross-sectional shape. Additionally, in some configurations, the pins may have a short-axis cross-sectional shape selected from triangular, square, rectangular, hexagonal, and semi-circular.
摘要:
An article of apparel may include may include a garment portion and at least one protective element. The garment portion and the protective element have a configuration that forms a gap, separation, or pleat structure through, for example, folding or overlapping of a textile element of the garment portion. The gap, separation, or pleat structure may permit the protective element to move independent of other portions of the apparel, thereby enhancing a range of movement of the individual and the overall comfort of the apparel.