Polypropylene composition

Details Polypropylene composition Polypropylene composition

2004-11-03

2011-11-15

Zemel, Irina S (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...

C525S191000

Reexamination Certificate

active

08058350

ABSTRACT:
A composition comprising: a) 50% to 90% of a propylene (co)polymer having: (i) a polydispersity index >3, (ii) melt flow rate >1 dg/min, and (iii) fraction soluble in xylene at 25° C. >1%, b) 5% to 25% of an ethylene/α-olefin copolymer having: (i) ethylene content over 50% but under 92% by mol, (ii) intrinsic viscosityover 1.2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, and (iv) enthalpy of fusion under 62 J/g; c) 5% to 25% of a propylene/ethylene copolymer having: (i) propylene content over 50% but under 92% by mol, (ii) intrinsic viscosity over 2 but under 6 dL/g, (iii) density ranging from 0.850 to 0.890 g/cm3, (iv) product of reactivity ratios r1×r2 u nder 2, and (v) enthalpy of fusion under 45 J/g; wherein the weight ratio between component b and the sum of components b) and c) is 0.5 to 0.9.

REFERENCES:
patent: 3515775 (1970-06-01), Combs et al.
patent: 4128606 (1978-12-01), Furutachi et al.
patent: 4143099 (1979-03-01), Duncan
patent: 4220579 (1980-09-01), Rinehart
patent: 4298718 (1981-11-01), Mayr et al.
patent: 4313867 (1982-02-01), Duvdevani
patent: 4316966 (1982-02-01), Mineshima et al.
patent: 4399054 (1983-08-01), Ferraris et al.
patent: 4480065 (1984-10-01), Kawai et al.
patent: 4495338 (1985-01-01), Mayr et al.
patent: 4705818 (1987-11-01), Kawai et al.
patent: 4734459 (1988-03-01), Cecchin et al.
patent: 4857613 (1989-08-01), Zolk et al.
patent: 4871796 (1989-10-01), Komatsu et al.
patent: 5055528 (1991-10-01), Kioka et al.
patent: 5115030 (1992-05-01), Tanaka et al.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5155030 (1992-10-01), Nakamura et al.
patent: 5239022 (1993-08-01), Winter et al.
patent: 5243001 (1993-09-01), Winter et al.
patent: 5288824 (1994-02-01), Kerth et al.
patent: 5324800 (1994-06-01), Welborn, Jr. et al.
patent: 5480972 (1996-01-01), Avjioglu et al.
patent: 5536789 (1996-07-01), Schwager et al.
patent: 5541260 (1996-07-01), Pelliconi et al.
patent: 5556928 (1996-09-01), Devore et al.
patent: 5747592 (1998-05-01), Huff et al.
patent: 5763534 (1998-06-01), Srinivasan et al.
patent: 5824400 (1998-10-01), Petrakis et al.
patent: 6054406 (2000-04-01), Smith
patent: 6191223 (2001-02-01), Dolle et al.
patent: 6214934 (2001-04-01), Moriya et al.
patent: 6395832 (2002-05-01), Pelliconi et al.
patent: 6429250 (2002-08-01), Rohrmann
patent: 6506842 (2003-01-01), Heck et al.
patent: 6953829 (2005-10-01), Kratzer et al.
patent: 7101940 (2006-09-01), Schottek et al.
patent: 7122606 (2006-10-01), Tonti et al.
patent: 2003/0008984 (2003-01-01), Schottek et al.
patent: 2003/0013913 (2003-01-01), Schottek et al.
patent: 2004/0010087 (2004-01-01), Obata et al.
patent: 2005/0272874 (2005-12-01), Pelliconi et al.
patent: 2006/0041072 (2006-02-01), Pelliconi et al.
patent: 2006/0047071 (2006-03-01), Pelliconi et al.
patent: 2008/0071019 (2008-03-01), Pelliconi et al.
patent: 3319619 (1983-12-01), None
patent: 4019053 (1991-12-01), None
patent: 4211413 (1993-10-01), None
patent: 19962814 (2001-06-01), None
patent: 19962910 (2001-07-01), None
patent: 19962814 (2003-01-01), None
patent: 19962910 (2003-01-01), None
patent: 9276 (1980-04-01), None
patent: 45975 (1982-02-01), None
patent: 45977 (1982-02-01), None
patent: 86473 (1983-08-01), None
patent: 170255 (1986-02-01), None
patent: 323715 (1989-07-01), None
patent: 353981 (1990-02-01), None
patent: 361493 (1990-04-01), None
patent: 361494 (1990-04-01), None
patent: 362705 (1990-04-01), None
patent: 373660 (1990-06-01), None
patent: 395083 (1990-10-01), None
patent: 416815 (1991-03-01), None
patent: 420436 (1991-04-01), None
patent: 430490 (1991-06-01), None
patent: 451645 (1991-10-01), None
patent: 457082 (1991-11-01), None
patent: 463406 (1992-01-01), None
patent: 472946 (1992-03-01), None
patent: 476625 (1992-03-01), None
patent: 485820 (1992-05-01), None
patent: 485822 (1992-05-01), None
patent: 485823 (1992-05-01), None
patent: 496926 (1992-08-01), None
patent: 519725 (1992-12-01), None
patent: 553805 (1993-08-01), None
patent: 553806 (1993-08-01), None
patent: 573862 (1993-12-01), None
patent: 600246 (1994-06-01), None
patent: 602512 (1994-06-01), None
patent: 611801 (1994-08-01), None
patent: 633289 (1995-01-01), None
patent: 643066 (1995-03-01), None
patent: 671404 (1995-09-01), None
patent: 674991 (1995-10-01), None
patent: 692499 (1996-01-01), None
patent: 728769 (1996-08-01), None
patent: 782587 (1997-07-01), None
patent: 790076 (1997-08-01), None
patent: 792814 (1997-09-01), None
patent: 816395 (1998-01-01), None
patent: 831125 (1998-03-01), None
patent: 844279 (1998-05-01), None
patent: 844280 (1998-05-01), None
patent: 844281 (1998-05-01), None
patent: 936247 (1999-08-01), None
patent: 936248 (1999-08-01), None
patent: 1236769 (2002-09-01), None
patent: 0884353 (2002-10-01), None
patent: 129368 (2004-12-01), None
patent: 01016848 (1989-01-01), None
patent: 11-60847 (1999-03-01), None
patent: 2002-513430 (2002-05-01), None
patent: 2003-10560 (2003-01-01), None
patent: 91/02012 (1991-02-01), None
patent: 91/04257 (1991-04-01), None
patent: 92/00333 (1992-01-01), None
patent: 92/22607 (1992-12-01), None
patent: 96/22327 (1996-07-01), None
patent: 96/22995 (1996-08-01), None
patent: 98/22486 (1998-05-01), None
patent: 98/37144 (1998-08-01), None
patent: 99/21899 (1999-05-01), None
patent: 99/24446 (1999-05-01), None
patent: 99/58539 (1999-11-01), None
patent: 00/26295 (2000-05-01), None
patent: 01/19915 (2001-03-01), None
patent: 01/21674 (2001-03-01), None
patent: 01/44318 (2001-06-01), None
patent: 01/47939 (2001-07-01), None
patent: 01/48034 (2001-07-01), None
patent: 01/62764 (2001-08-01), None
patent: 03/045964 (2003-06-01), None
patent: 03/051984 (2003-06-01), None
patent: 2004/003072 (2004-01-01), None
patent: 2004/003073 (2004-01-01), None
patent: 2005/014715 (2005-02-01), None
patent: 2005/044911 (2005-05-01), None
patent: 2005/121240 (2005-12-01), None
M. Kakugo et al.,Macromolecules, vol. 15, p. 1150-1152 (1982).
J. C. Randall, JMS-REVMacromol Chem. Phys., C29 (2&3), 201-317 (1989).
J. C. Randall, “Polymer Sequence Determination Carbon 13 NMR Method,” Academic Press (1977).
Moor, E.P., Jr. et al., “Polypropylene Handbook”, Kogyo Chosakai Co.Ltd., pp. 71-74 (1998). (Partial translation included).

Affiliated with

Also associated with

Rating

Polypropylene composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4273688