Propylene-based polymer and production method therefor,...

Details Propylene-based polymer and production method therefor,... Propylene-based polymer and production method therefor,...

2007-01-31

2010-12-28

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

active

07858716

ABSTRACT:
Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).

REFERENCES:
patent: 5385993 (1995-01-01), Fujita
patent: 59 230010 (1984-12-01), None
patent: 62 227431 (1987-10-01), None
patent: 63 23721 (1988-02-01), None
patent: 63 199203 (1988-08-01), None
patent: 2 77413 (1990-03-01), None
patent: 3 234707 (1991-10-01), None
patent: 3 294304 (1991-12-01), None
patent: 5 117317 (1993-05-01), None
patent: 6 122724 (1994-05-01), None
patent: 6 145269 (1994-05-01), None
patent: 7 25927 (1995-01-01), None
patent: 7 133329 (1995-05-01), None
patent: 7 504708 (1995-05-01), None
patent: 8 3215 (1996-01-01), None
patent: 8 67710 (1996-03-01), None
patent: 8 100019 (1996-04-01), None
patent: 8 127615 (1996-05-01), None
patent: 8 157519 (1996-06-01), None
patent: 11 80235 (1999-03-01), None
patent: 2000 7725 (2000-01-01), None
patent: 2001 122921 (2001-05-01), None
patent: 2004 315742 (2004-11-01), None
patent: 2005 48045 (2005-02-01), None

Affiliated with

Also associated with

Rating

Propylene-based polymer and production method therefor,... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Propylene-based polymer and production method therefor,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propylene-based polymer and production method therefor,... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4173108