Olefin polymerization in the presence of a dehydrogenation...

Details Olefin polymerization in the presence of a dehydrogenation... Olefin polymerization in the presence of a dehydrogenation...

2006-01-03

2006-01-03

Rabago, Roberto (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S113000, C526S114000, C526S117000, C526S118000, C526S119000, C526S169100, C526S172000, C526S160000, C526S161000

Reexamination Certificate

active

06982305

ABSTRACT:
A process for polymerizing olefins is disclosed. The process polymerizes an olefin in the presence of a dehydrogenation catalyst and an olefin polymerization catalyst. The dehydrogenation catalyst enables in-situ generation of alkenes from oligomers or solvent. The alkenes are then incorporated into the polyolefin. The polyolefin should have increased long-chain branching and lower density without the use of expensive comonomers.

REFERENCES:
patent: 3903191 (1975-09-01), Pollitzer
patent: 5064802 (1991-11-01), Stevens et al.
patent: 5153157 (1992-10-01), Hlatky et al.
patent: 5198401 (1993-03-01), Turner et al.
patent: 5241025 (1993-08-01), Hlatky et al.
patent: 5414180 (1995-05-01), Geerts et al.
patent: 5539124 (1996-07-01), Etherton et al.
patent: 5637659 (1997-06-01), Krishnamurti et al.
patent: 5648440 (1997-07-01), Sugano et al.
patent: 5780701 (1998-07-01), Kaska et al.
patent: 5902866 (1999-05-01), Nagy et al.
patent: 6294495 (2001-09-01), Matsunaga
patent: 6586541 (2003-07-01), Citron
C. Jensen, Chem. Commun. (1999) 2443-2449.
March, Advanced Organic Chemistry 3rd. ed. (1985) 1053.
B. Weckhuysen et al.,Catalysis Today 51, (1999) 223.
R. Crabtree et al.,J. Am. Chem. Soc. 104, (1982) 107.
M. Burk, et al.,J. Am. Chem. Soc. 109, (1987) 8025.
M. Burk, et al.,J. Chem. Soc., Chem. Commun. (1985) 1829.
J. Belli, et al.,Organometallics 15, (1996) 1532.
C. Moulton et al.,J. Chem. Soc., Dalton Trans. (1976) 1020.
M. Albrecht et al.,Angew. Chem. Int. Ed. 40(2001) 3751.
J. Singleton,Tetrahedron 59(2003) 1837.
C. Jensen et al.,Chem. Commun. (1997) 461.
K. Krogh-Jespersen et al.,J. Mol. Catal. A 189(2002) 95.
C. Jensen,Chem. Commun. (1999) 2443.
M. Burk et al.,Organometallics 3(1984) 816.
J. Maguire et al.,J. Am. Chem. Soc. 113(1991) 6706.
J. Miller et al.,J. Chem. Soc. Chem. Commun. (1994) 1449.
D. Baudry et al.,J. Chem. Soc., Chem. Commun. (1983) 788.
T. Sakakura et al.,Chem. Letters(1988) 263.
M Gupta et al.,J. Am. Chem. Soc. 119(1997) 840.

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