Preparation of high cis-1,4-polypentadiene

Details Preparation of high cis-1,4-polypentadiene Preparation of high cis-1,4-polypentadiene

1978-04-05

1979-09-18

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 336A, 260 5, 5263402, C08F 450, C08F 452

Patent

active

041683579

ABSTRACT:
There is disclosed a method for the preparation of very high cis-1,4-polypentadiene which comprises polymerizing cis-1,3-pentadiene, also known as cis-piperylene, with a ternary catalyst system comprising (A) a soluble chromium compound such as chromium salts of organic acids, organic complex compounds of chromium containing tridentate organic ligands, and .pi.-bonded organochromium compounds, (B) an organometallic, such as trialkylaluminums, dialkylmagnesiums or dialkylzincs, and (C) dialkyl hydrogen phosphites.

REFERENCES:
patent: 3300467 (1967-01-01), Natta et al.
patent: 3429940 (1969-02-01), Wadsworth
patent: 3754048 (1973-08-01), Wu et al.
patent: 3804913 (1974-04-01), Goodwin
patent: 4048418 (1977-09-01), Throckmorton
Journ. Polym. Sci. 51, 463 (1961).
CA 80, 4644m (1974).
CA 80, 109590v (1974).

Affiliated with

Also associated with

Rating

Preparation of high cis-1,4-polypentadiene does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of high cis-1,4-polypentadiene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of high cis-1,4-polypentadiene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-898180