Process for preparation of unsaturated oligomers or polymers by

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

526139, 526140, 526141, 526161, 526166, 526169, 526336, 585643, 585645, 585647, C08G 6104, C07C 600

Patent

active

055191010

ABSTRACT:
A polymerization process for preparation of oligomers and polymers having at least one internal carbon-to-carbon double bond and containing functional groups comprising terminal carbon-to-carbon double bonds is disclosed. The polymerization process is substantially free of side reactions comprising double bond migration. The oligomers and polymers are prepared from acyclic polyenes of from 2 to about 30 carbon atoms. The catalyst system comprises a metathesis catalyst (A) comprising a transition metal compound, an activator (B) selected from the group consisting of organic tin compounds and organic aluminum halides and (C) an organic Lewis base. Yields are at least 60% of theoretical based on acyclic polyene reactant.

REFERENCES:
patent: 3514437 (1970-05-01), Henderson
patent: 3597403 (1971-08-01), Ofstead
patent: 3597406 (1971-08-01), Calderon
patent: 3798175 (1974-03-01), Streck et al.
patent: 3857825 (1974-12-01), Streck et al.
patent: 3935179 (1976-01-01), Ofstead
patent: 3974092 (1976-08-01), Streck et al.
patent: 3974094 (1976-08-01), Streck et al.
patent: 4010224 (1977-03-01), Scott et al.
patent: 4020254 (1977-04-01), Ofstead
patent: 4172932 (1979-10-01), Ofstead et al.
patent: 4429089 (1984-01-01), Pedretti et al.
patent: 4469809 (1984-09-01), Klosiewicz
patent: 4520181 (1985-05-01), Klosiewicz
patent: 4699963 (1987-10-01), Klosiewicz
patent: 4918039 (1990-04-01), Martin
patent: 4977226 (1990-12-01), Sugawara et al.
Hackh's Chemical Dictionary, 4th ed., McGraw-Hill, Inc., N.Y., pp. 35, 320, 321.
Hackh's Chem. Dictionary, J. Grant (ed.) McGraw-Hill Co., Inc., N.Y., 16 (1969).
Schrock, et al., "Preparation and Reactivity of Several Alkylidene Complexes of the Type W(CHR') (N-2,6-C.sub.6 H.sub.3 -i-Pr.sub.2) (OR).sub.2 and Related Tungstacyclobutane Complexes. Controlling Metathesis Activity through The Choice of Alkoxide Ligand", J. Am. Chem. Soc., 1988, pp. 1423-1435.
Wagener et al., Makromol. Chem. 191, pp. 365-374 (1990).
K. J. Ivin, Olefin Metathesis, 1983, p. 149.
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 8, Diuretics to Emulsions, p. 597.
K. Ichikawa and K. Fukuzumi, Metathesis of 1-Alkene, 1976, pp. 2633-2635.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for preparation of unsaturated oligomers or polymers by 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 preparation of unsaturated oligomers or polymers by , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparation of unsaturated oligomers or polymers by will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2038805

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.