Process for making polyolefin compositions containing...

Details Process for making polyolefin compositions containing... Process for making polyolefin compositions containing...

2005-12-27

2005-12-27

Choi, Ling-Sui (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S130000, C526S090000, C526S158000, C526S124100, C526S124200, C526S124300

Reexamination Certificate

active

06979718

ABSTRACT:
A clay-filled polyolefin composition and process for making it are disclosed. The process involves treatment of a non-acid-treated smectite clay with a Ziegler-Natta catalyst in the presence of a hydrocarbon and subsequent polymerization of an olefin in the presence of the treated clay and an organoaluminum cocatalyst. Results indicate that filled compositions produced by this process contain exfoliated clay.

REFERENCES:
patent: 4473672 (1984-09-01), Bottrill
patent: 4483938 (1984-11-01), Rees
patent: 4564647 (1986-01-01), Hayashi et al.
patent: 5830820 (1998-11-01), Yano et al.
patent: 5906955 (1999-05-01), Hamura et al.
patent: 5925587 (1999-07-01), Lee et al.
patent: 6034187 (2000-03-01), Maehama et al.
patent: 6110858 (2000-08-01), Kaneko et al.
patent: 6252020 (2001-06-01), Kuo et al.
patent: 6399535 (2002-06-01), Shih et al.
patent: 6465543 (2002-10-01), Alexandre et al.
patent: 0 222 504 (1986-10-01), None
patent: WO 95/06090 (1995-03-01), None
patent: WO 97/00910 (1997-01-01), None
patent: WO 01/30864 (2001-05-01), None
Bergman et al.,Synthesis And Characterization Of Polyolefin-Silicate Nanocomposites: A Catalyst Intercalation And In Situ Polymerization Approach. Chem Commun.(1999), pp 2179-2180.
Izumi, Y. et al.,Zaofite, Clay, and Heteropoly Acid In Organic Reactions, VCH Publishers Inc. (1992), pp 49-54.
Alexandre et al.,Polyethylene-Layered Silicate Nanocomposites Prepared By The Polymerization-Filling Technique: Synthesis And Mechanical Properties, Polymer43 (2002), pp 2123-2132.
Jin et al.,Polyethylene/Clay Nanocomposite By In-Situ Exfoliation Of Montmorillonite During Ziegler-Natta Polymerization Of Ethylene, Macromol. Rapid Commun.23, 2002, pp 135-140.

Affiliated with

Also associated with

Rating

Process for making polyolefin compositions containing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for making polyolefin compositions containing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making polyolefin compositions containing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3499531