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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Spagnoli; Leonardo
Address:
Terni, IT
No. of patents:
10
Patents:












Patent Number Title Of Patent Date Issued
6677039 Process for spinning thermoweldable fibers obtained from polyolefin composition January 13, 2004
Crystalline olefin polymers in the form of granules or nonextruded particles having regular geometric form, containing one or more of the following stabilizers: a) from 0.01 to 0.5% by weight of one or more organic phosphites or phosphonites or mixtures thereof; or b) from 0.005 to
5660789 Spinning process for the preparation of high thermobondability polyolefin fibers August 26, 1997
Polyolefin fibers, suitable for the preparation of nonwoven fabrics, prepared by using a spinneret or extruder with dies having a real or equivalent output diameter of the capillaries or holes greater than 0.4 mm, with the proviso that for fibers having a denier greater than or equal
5631083 Fibers suitable for the production of nonwoven fabrics having improved strength and softness cha May 20, 1997
Disclosed is a drawn, polyolefin fiber useful for nonwoven fabrics, the thermobonding index of said fiber being 4.5-9 Newtons, and the flexibility index thereof being 1020-1500. The fiber is composed of a blend of specified polymers. Also disclosed is a process for making the fiber by
5622765 Resilient high shrinkage propylene polymer yarn and articles made therefrom April 22, 1997
Saxony carpet containing a pile yarn comprising propylene polymer yarn of increased resiliency and shrinkage, compared to crystalline propylene homopolymer yarn, having a continuous strand of multiple monofilament fibers, said fibers consisting essentially of certain propylene polymer
5587229 Resilient, high shrinkage propylene polymer yarn and articles made therefrom December 24, 1996
Fabric prepared from a propylene polymer yarn of increased resiliency and shrinkage, compared to crystalline propylene homopolymer yarn, comprising a strand of multiple monofilament fibers, the fibers consisting essentially of certain propylene polymer blends and materials.
5536572 Compositions for polyolefin fibers having improved flame-resistance and no corrosive properties July 16, 1996
An olefin polymer composition is disclosed which comprises (by weight):(a) from 0.3 to 3% of a complex of general formula:wherein R is an amine; Me is bismuth or antimony; X is chlorine or bromine; y is a number from 0.3 to 4.0;(b) from 0.1 to 1% of poly(1,4-diisopropylbenzene);(c) from 0.1 to 0
5529845 Fibers suitable for the production of nonwoven fabrics having improved strength and softness cha June 25, 1996
Disclosed is a simple, undrawn, 1-10 dtex, propylene polymer fiber, the thermowelding stength of which is at least 5 Newtons, the flexibility index of which is greater than 800, and which has good resistance to yellowing and aging. Also disclosed are a nonwoven fabric of said fiber,
5494951 Compositions for polyolefin fibers having improved flame-resistance and no corrosive properties February 27, 1996
An olefin polymer composition is disclosed which contains (by weight):(a) from 0.3 to 3% of a complex of general formula: wherein R is an amine; Me is bismuth or antimony; X is chlorine or bromine; y is a number from 0.3 to 4.0;(b) from 0.1 to 1% of poly(1,4-diisopropylbenzene);(c) from 0.1 to 0
5486419 Resilient, high strinkage propylene polymer yarn and articles made therefrom January 23, 1996
Disclosed is a polyolefin yarn capable of increased resiliency and shrinkage comprising continuous strands of multiple monofilament fibers or staple fibers of propylene polymer material, optionally blended with polypropylene homopolymer, said propylene polymer material selected from
4578428 Modified olefine polymers and process for their manufacture March 25, 1986
Olefinic polymers characterized by the presence of free carboxylic groups arranged along the polymeric chain, obtained by radicalic grafting of unsaturated carboxylic acids onto the chain of the olefinic polymer. The products so obtained exhibit in particular a high adhesion to metals. T










 
 
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