Patent ID: 6124428
Filing Date: 2000-09-26
Classification: C08J,C08K,C08L

Abstract:
A method for processing a linear polyethylene into a film comprising:a) selecting a linear polyethylene from the group consisting of linear low density polyethylene (LLDPE), metallocene linear low density polyethylene (m-LLDPE), high density polyethylene (HDPE), plastomers, medium density polyethylene (MDPE), ultra high molecular weight-high density polyethylene (UHMW-HDPE) and combinations thereof,b) adding an elastomer from the group consisting of styrene-isoprene-styrene (SIS), styrene-butadiene-styrene (SBS), styrene-ethylene butadiene-styrene (SEBS), styrene-ethylene propylene styrene (SEPS), and combinations thereof to the linear polyethylene of a);c) selecting a surfactant, wherein said surfactant is an aliphatic sulfonate salt or branched or straight chain hydroxyl substituted non-aromatic alkyl sulfonate salt, wherein a cation of said salt is selected from the group consisting of Na, K, and Li; wherein said aliphate is a C.sub.6 -C.sub.30 branched or straight chain alkenyl, and combinations thereof,d) placing an amount of said surfactant into said polyethylene and elastomer sufficient to reduce melt fracture; ande) melt processing said polyethylene, elastomer and said surfactant to form said film.