Polypropylene resin suitable for fibers and nonwovens

Details Polypropylene resin suitable for fibers and nonwovens Polypropylene resin suitable for fibers and nonwovens

2008-01-15

2008-01-15

Nutter, Nathan M. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S240000

Reexamination Certificate

active

11052573

ABSTRACT:
A blended polypropylene composition, fiber, and nonwoven articles made therefrom are provided. In one aspect, the blended polypropylene composition comprises a first polymer component having a molecular weight distribution of from 2.5 to 8, and a second polymer component having a molecular weight distribution of from 1.8 to 3. The first polymer component has a melt flow rate of greater than 30 g/10 min. and the second polymer component has a melt flow rate of less than 40 g/10 min., and the blended polypropylene composition has a melt flow rate of greater than 5 g/10 min.

REFERENCES:
patent: 4340563 (1982-07-01), Appel et al.
patent: 5171628 (1992-12-01), Arvedson et al.
patent: 5460884 (1995-10-01), Kobylivker et al.
patent: 5571619 (1996-11-01), McAlpin et al.
patent: 5629080 (1997-05-01), Gupta et al.
patent: 5654088 (1997-08-01), Gupta et al.
patent: 5733646 (1998-03-01), Gupta et al.
patent: 5744548 (1998-04-01), Nohr et al.
patent: 5763532 (1998-06-01), Harrington et al.
patent: 5882562 (1999-03-01), Kozulla
patent: 6235664 (2001-05-01), Georgellis et al.
patent: 6248833 (2001-06-01), Colucci et al.
patent: 6268302 (2001-07-01), Ofosu et al.
patent: 6342565 (2002-01-01), Cheng et al.
patent: 6407171 (2002-06-01), Agarwal et al.
patent: 6454989 (2002-09-01), Neely et al.
patent: 6476135 (2002-11-01), Bugada et al.
patent: 2002/0045712 (2002-04-01), Hashimoto et al.
patent: 2003/0088022 (2003-05-01), Lin et al.
patent: 0 646 624 (1995-04-01), None
patent: 00/70134 (2000-11-01), None
patent: 01/64980 (2001-09-01), None
patent: 02/16681 (2002-02-01), None

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