Abstract:
Disclosed are oil-extended olefin block copolymer compositions with low, or no, tack. A unique comonomer content in the soft segment of the OBC in conjunction with the presence of a polyolefin provides the present oil-extended OBC composition with softness, low (or no) tack, and low (or no) oil-bleed.
Abstract:
A power cable comprising: (A) a conductor, (B) an insulation layer, and (C) a semiconductor layer comprising in weight percent based on the weight of the semiconductor layer: (1) 49-98% of a crosslinked olefin block copolymer (OBC) having a density less than ( 3 ), a melt index greater than (>) 1, and comprising in weight percent based on the weight of the OBC: (a) 35-80% soft segment that comprises 5-50 mole percent (mol%) of units derived from a monomer comprising 3 to 30 carbon atoms; and (b) 20-65% hard segment that comprises 0.2-3.5 mol% of units derived from a monomer comprising 3 to 30 carbon atoms; (2) 2-51 % conductive filler, the insulation layer and semiconductor layer in contact with one another, is degassed by a process comprising the step of exposing the cable to a temperature of at least 80°C for a period of time of at least 24 hours.
Abstract translation:一种电力电缆,包括:(A)导体,(B)绝缘层,和(C)基于所述半导体层的重量的重量百分数的半导体层:(1)49-98%的交联烯烃嵌段 共聚物(OBC),其密度小于(<)0.9克/立方厘米(g / cm 3),熔体指数大于(>)1,并且包含基于OBC重量的重量百分比:(a)35 -80%软链段,其包含5-30摩尔%(mol%)衍生自包含3至30个碳原子的单体的单元; 和(b)20-65%的硬链段,其包含0.2-3.5mol%的源自含有3至30个碳原子的单体的单元; (2)2-51%的导电填料,绝缘层和半导体层彼此接触,通过包括以下步骤的方法进行脱气:将电缆暴露于至少80℃的温度一段时间 至少24小时。
Abstract:
A process to produce a polyolefin reactive telechelic pre-polymer comprising reacting alkyl- c/5-cyclooctene and optionally czs-cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions to form a dicarbamate telechelic unsaturated polyolefin pre-polymer is provided.
Abstract:
A dicarbamate telechelic unsaturated polyolefin pre-polymer comprising a reaction product of reacting alkyl- cis -cyclooctene and optionally cis -cyclooctene, in the presence of a multifunctional chain transfer agent possessing two or more amino groups wherein the two or more amino groups are protected by one or more protecting groups under ring opening metathesis polymerization conditions is provided.
Abstract:
The invention provides a composition comprising at least the following: A) an ethylene/α-olefin interpolymer; B) an olefin-based polymer; and C) a crosslinking agent; and wherein the ethylene/α-olefin interpolymer of component A) has the following properties: i) has a density greater than, or equal to, 0.850 g/cc; ii) a molar ratio of "vinyl to total unsaturation" greater than, or equal to, 1/10; iii) an 110/12 ratio from 6.2 to 40.
Abstract:
The present disclosure relates to unsaturated polyolefins and processes for preparing the same. The present disclosure further relates to curable formulations comprising the unsaturated polyolefins that show improved crosslinking.
Abstract:
The instant invention provides a polymer composition suitable for clear graphic cling film applications, method of producing the same, articles made therefrom, and methods for making such articles. The polymer composition suitable for clear graphic cling film applications, according to the present invention, comprises: (a) a polyolefin composition selected from the group consisting of a propylene-based composition, and an ethylene-based composition, wherein the propylene-based composition has an melt flow rate in the range of from 2 to 8 g/10 minutes, a dynamic mechanical spectroscopy (DMS) value in the range of from 3700 to 10100 Pascal-seconds at 0.1 radian per second, and from 650 to 1200 Pascal-seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 4 percent by weight to 11 percent by weight, and a heat of fusion of in the range of from 6 to 19 Joules/gram, and a DSC melting point of less than 110° C (measured via DSC, second heat), and wherein the ethylene-based composition has a melt index (I2) in the range of from 0.5 to 5 g/10 minutes, and a density in the range of from 0.865 to 0.880 g/cm, a DMS value in the range of from 1800 to 17000 Pascal- seconds at 0.1 radian per second, and from 750 to 2200 Pascal- seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 14 percent by weight to 20 percent by weight, and a heat of fusion in the range of from 40 to 60 Joules/gram, and a DSC melting point of less than 70° C (measured via DSC, second heat), and (b) one or more alkyl phosphate-based release agent; wherein when said polyolefin composition is formed into a clear graphic cling film having a 7 (+ 2) mils, said clear graphic cling film has a haze in the range of from less than 4 percent, for example from 0.3 to 4 percent, measured according to ASTM-D 1003.