C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/06 (2006.01) B29C 43/22 (2006.01) C08K 3/36 (2006.01) C08K 5/5419 (2006.01) C08L 23/12 (2006.01) C08L 57/00 (2006.01) D04H 1/54 (2006.01)
Patent
CA 2070473
Abstract of the Disclosure A melt-extrudable thermoplastic composition is provided which includes a thermoplastic polyolefin and an additive system made up of a first component and a second component, in which (A) the first component is a defined polysiloxane polyether having a molecular weight of from about 350 to about 18,000 and which is present in an amount of from about 0.1 to about 3 percent by weight, based on the amount of thermo- plastic polyolefin; and (B) the second component is a hydrophobic fumed silica, in which the weight ratio of the first component to the second component is in the range of from about 20 to about 300. Such composition yields, upon melt-extrusion, either nonwoven webs having significantly increased tensile strengths when compared to nonwoven webs prepared from the thermoplastic polyolefin alone, or wettable webs requiring an amount of first component which is signifi- cantly less than that required in the absence of the second component. - 59 -
Macdonald John G.
Nohr Ronald S.
Borden Ladner Gervais Llp
Kimberly-Clark Corporation
Kimberly-Clark Worldwide Inc.
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