Filing Information

Inventor(s)	Michael E. Starsinic ·
Assignee(s)	Montell North America Inc. ·  View assignee updates
Primary Examiner	Samuel A. Acquah ·
Assistant Examiner	U. K. Rajguru ·
Application Number	US9097281
Filing date	06/12/1998
Issue date	01/09/2001
Predicted expiration date	06/12/2018
U.S. Classifications	524/400  · 524/444  · 524/301  · 524/318  · 524/128  · 524/100  · 524/236  · 524/432  · 524/451  · 524/433  · 524/436  · 524/119  ·
International Classifications	--
Kind Code	B2
International Classifications	524119 · 524236 · 524444 · 524451 · 524432 · 524433 · 524436 · 524301 · 524318 · 524400 · 524128 · 524100 · 26433115 ·

Patent Family

Abstract

A polymer composition and fiber, film and fabric prepared therefrom. The composition contains (i) an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, the metallic salt of a saturated or unsaturated being present in a maximum amount of 200 ppm, a stabilizer system containing (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilotriethyl-tris(3,3′,5,5′-tetra-tert.butyl-1, 1-biphenyl-2,2′-diyl)phosphite and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber, film or fabric which includes (A) incorporating the above additives into an olefin polymer, thereby producing a stabilized polyolefin polymer; and (B) extruding the stabilized olefin polymer through a die, thereby producing a olefin polymer fiber or film. A woven or non-woven fabric may be prepared from the olefin polymer fiber or film.

Independent Claims | See all claims (24)

1. 1. A polymer composition comprising an olefin polymer containing: (i) an acid neutraliing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, said metallic salt of a saturated or unsaturated being present in an amount of from 100 to 200 ppm, (iii) a stabilizer system comprising: (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilotriethyl-tris(3,3′,5,5′-tetra-tert.butyl-1,1-biphenyl-2,2′-diyl)phosphite and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine.
2. 20. A method for preparing a olefin polymer fiber or film, comprising: (A) incorporating the following additives into an olefin polymer: (i) an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, said metallic salt of a saturated or unsaturated being present in an amount of from 100 to 200 ppm, (iii) a stabilizer system comprising: (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilotriethyl-tris(3,3′,5,5′-tetra-tert.butyl-1,1-biphenyl-2,2′-diyl)phosphite and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine, thereby producing a stabilized polyolefin polymer, and (B) extruding said stabilized olefin polymer through a die, thereby producing a olefin polymer fiber or film.