Fibers and nonwovens comprising polypropylene blends and...

Details Fibers and nonwovens comprising polypropylene blends and... Fibers and nonwovens comprising polypropylene blends and...

2011-06-14

2011-06-14

Nutter, Nathan M (Department: 1765)

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

07960478

ABSTRACT:
Polypropylene materials comprising a polymeric blend, the polymeric blend comprising: (a) a first linear low density metallocene polyethylene; and (b) a second linear low density polyethylene; wherein the polypropylene material has a first turbidity half time measured under quiescent conditions, and a second turbidity half time measured at a wall shear stress of about 0.11 MPa, and having a certain ratio of the second turbidity half time to the first turbidity half time.

REFERENCES:
patent: 3855046 (1974-12-01), Hansen et al.
patent: 4021284 (1977-05-01), Kalwaites
patent: 4024612 (1977-05-01), Contractor et al.
patent: 4116892 (1978-09-01), Schwarz
patent: 4834741 (1989-05-01), Sabee
patent: 5143679 (1992-09-01), Weber et al.
patent: 5156793 (1992-10-01), Buell et al.
patent: 5167897 (1992-12-01), Weber et al.
patent: 5422172 (1995-06-01), Wu
patent: 5518801 (1996-05-01), Chappell et al.
patent: 5616412 (1997-04-01), Lin
patent: 5804284 (1998-09-01), Lennon et al.
patent: 5932497 (1999-08-01), Morman et al.
patent: 5986008 (1999-11-01), Matsunaga et al.
patent: 6013151 (2000-01-01), Wu et al.
patent: 6080818 (2000-06-01), Thakker et al.
patent: 6199437 (2001-03-01), Kumaraswamy et al.
patent: 6235664 (2001-05-01), Georgellis et al.
patent: 6417122 (2002-07-01), Newkirk et al.
patent: 6476135 (2002-11-01), Bugada et al.
patent: 6506698 (2003-01-01), Quantrille et al.
patent: 6555643 (2003-04-01), Rieger
patent: 6646051 (2003-11-01), Demain
patent: 6710134 (2004-03-01), Demain
patent: 6720045 (2004-04-01), Kawamura et al.
patent: 6720388 (2004-04-01), Demain
patent: 6723669 (2004-04-01), Clark et al.
patent: 6770356 (2004-08-01), O'Donnell et al.
patent: 6770713 (2004-08-01), Hanke et al.
patent: 6896843 (2005-05-01), Topolkaraev et al.
patent: 7223818 (2007-05-01), Autran et al.
patent: 7491770 (2009-02-01), Autran et al.
patent: 7781527 (2010-08-01), Autran et al.
patent: 2002/0119720 (2002-08-01), Arora et al.
patent: 2004/0038612 (2004-02-01), Forbes et al.
patent: 2004/0161992 (2004-08-01), Clark et al.
patent: 2004/0197588 (2004-10-01), Thomas et al.
patent: 2005/0037194 (2005-02-01), Greene et al.
patent: 2005/0170727 (2005-08-01), Melik et al.
patent: 0 889 089 (1999-06-01), None
patent: 1 106 644 (2001-06-01), None
patent: 1 443 132 (2004-08-01), None
patent: 1 566 475 (2005-08-01), None
patent: WO 00/28122 (2000-05-01), None
patent: WO 01/30563 (2001-05-01), None
patent: WO 01/64979 (2001-09-01), None
patent: WO 01/73174 (2001-10-01), None
patent: WO 03/057468 (2003-07-01), None
patent: WO 2004/005601 (2004-01-01), None
patent: WO 2004/041538 (2004-05-01), None
patent: WO 2004/060982 (2004-07-01), None
patent: WO 2004/061173 (2004-07-01), None
patent: WO 2004/061181 (2004-07-01), None
patent: WO 2004/067818 (2004-08-01), None
Andy Campbell;The Effect of Polymer Molecular Weight on Meltblown Fabrics; Nonwovens World, Apr.-May 2005, pp. 74-79.
Guruswamy Kumaraswamy, Julia A. Kornfield, Fengji Yeh & Benjamin S. Hsiao; Shear-Enhanced Crystallization in Isotactic Polypropylene. 3. Evidence for a Kinetic Pathway to Nucleation; Macromolecules 2002, 35, pp. 1762-1769.
Guruswamy Kumaraswamy, Ravi K. Verma & Julia A. Kornfield; Novel flow apparatus for investigating shear-enhanced crystallization and structure development in semicrystalline polymers; Review of Scientific Instruments, vol. 70, No. 4, Apr. 1999, pp. 2097-2104.
Motohiro Seki, Derek W. Thurman, James P. Oberhauser, & Julia Kornfield; Shear-Mediated Crystallization of Isotactic Polympropylene: The Role of Long Chain—Long Chain Overlap; Macromolecules 2002, 35, pp. 2583-2594.

Affiliated with

Also associated with

Rating

Fibers and nonwovens comprising polypropylene blends and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fibers and nonwovens comprising polypropylene blends and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fibers and nonwovens comprising polypropylene blends and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2698960