Patent
Compositions of ethylene/alpha-olefin multi-block interpolymer for elastic films and laminates
Andy C. Chang,Stephen M. Hoenig,Yunwa W. Cheung,Daniel G. Moldovan,Wenbin Liang,Charles F. Diehl +5 more
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TLDR
In this paper, an elastomeric polyolefinear resin and a high pressure low density type resin are used for elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines.Abstract:
This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type resin.read more
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Patent
Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation
Daniel J. Arriola,Edmund M. Carnahan,Yunwa Wilson Cheung,David D. Devore,David D Graf,Phillip D. Hustad,Roger L. Kuhlman,Colin Li Pi Shan,Benjamin C. Poon,Gordon R. Roof,James C. Stevens,Pamela J. Stirn,Timothy T. Wenzel +12 more
TL;DR: In this article, a multi-block copolymer is defined for use in forming a multinode copolym, containing two or more segments or blocks differing in chemical or physical properties, and a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (a) a first metal complex olefin polymerization catalyst, (b) a second metal complex OLEF polymerisation catalyst capable of preparing polymers differing from the polymer prepared by catalyst under equivalent polymerization conditions, and (
Patent
Ethylene/alpha-olefins block interpolymers
Colin Li Pi Shan,Lonnie G. Hazlitt,Yunwa Wilson Cheung,Benjamin C. Poon,Phillip D. Hustad,Roger L. Kuhlman,Edmund M. Carnahan,Xiaohua Qiu,Angela N. Taha +8 more
TL;DR: In this paper, the authors define a class of block interpolymers, which are characterized by an average block index, ABI, which is greater than zero and up to about 1.3.
Patent
Fibers made from copolymers of ethylene/alpha-olefins
Benjamin C. Poon,Yunwa Wilson Cheung,Shih-Yaw Lai,Ashish Sen,Hongyu Chen,Yuen-Yuen D. Chiu,Rajen M. Patel,Andy C. Chang,Antonios K. Doufas,Hong Peng +9 more
TL;DR: A fiber is obtainable from or comprises an ethylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481−1629(d).
Patent
Adhesive and marking compositions made from interpolymers of ethylene/alpha-olefins
TL;DR: In this article, an adhesive composition comprises: (i) at least one ethylene/α-olefin interpolymer, (ii) a tackifEer, and (iii) optionally at least an additive, such as a plasticizer, wax and antioxidant.
Patent
Compositions of ethylene/alpha-olefin multi-block interpolymer for blown films with high hot tack
TL;DR: In this article, the present invention relates to film layers and compositions having improved hot tack properties, where the compositions comprise at least one ethylene/α-olefin interpolymer, wherein the ethylene or α-olef-interpolymer may have, for example, a melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, and the numerical values of Tm and d correspond to the relationship: Tm > -2002.9 + 4538.5(d) - 2422.
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Non-woven mats by melt blowing
TL;DR: In this article, an improved melt-blowing process is proposed in which thermoplastic polymer resins, preferably polypropylene, having initial intrinsic viscosities of at least 1.4, are degraded, optionally in the presence of a free radical source compound, to have both reduced intrinsic viscoities and an apparent viscoity in the meltblowing nozzle orifices of from about 50 to about 300 poise.
Patent
Nonwoven fabric and method of producing same
TL;DR: In this paper, an air-formed matrix of thermoplastic polymer microfibers having an average fiber diameter of less than about 10 microns, and a multiplicity of individualized wood pulp fibers disposed throughout the matrix of micro-fiber and engaging at least some of the microfiber bits to space the micro-bits apart from each other.
Patent
Composite elastomeric material and process for making the same
TL;DR: In this paper, a method of producing a composite elastic material comprises stretching an elastic web to elongate it, for example, elongating a nonwoven web of meltblown elastomeric fibers, and bonding the elongated web to at least one gatherable web, such as a spunbonded polyester fiber material, under conditions which soften at least a portion of the elastic net to form the bonded composite web of elastic material.
Patent
Lubricating oil compositions.
TL;DR: In this article, a lubricating oil composition formulated with a viscosity index (VI) improver composition including a combination of an ethylene α-olefin copolymer having no greater than 66 mass % of units derived from ethylene was presented.
Patent
Nonwoven multicomponent polymeric fabric and method for making same
Richard Daniel Pike,Brown Kurtis Lee,Gwaltney Sharon Watkins,Thomas Alan Hershberger,Scott David Siegel +4 more
TL;DR: In this paper, a process for making nonwoven fabric including the steps of meltspinning continuous multicomponent polymeric filaments, drawing the multicomponents, at least partially quenching the multic-component filaments so that the multic component components have latent helical crimp, activating the latent helical crimp and thereafter, forming the crimped continuous multic component filaments into a first non-worn fabric web.