Lithium alkenoxides in preparation of functional liquid conjugat

Details Lithium alkenoxides in preparation of functional liquid conjugat Lithium alkenoxides in preparation of functional liquid conjugat

1977-02-01

1978-09-05

Hamrock, William F.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

526 20, 526 21, 526 55, 526175, 526240, 528 68, 528 75, C08F 808, C08F 842, C08F 408

Patent

active

041119150

ABSTRACT:
Functional liquid conjugated diene copolymers are prepared from conjugated dienes, or conjugated dienes with monovinyl aromatic hydrocarbon monomers, with lithium salts of alkenols as comonomers. The lithium alkenoxide comonomer can be employed as a comonomer during polymerization of the other monomers, or copolymerized at the end of polymerization of the other monomers. The functional copolymers can be cured with such as the polyisocyanate curing systems.

REFERENCES:
patent: 2856391 (1958-10-01), Diem
patent: 2951831 (1960-09-01), Reinhard et al.
patent: 3175997 (1965-03-01), Hsieh
patent: 3280084 (1966-10-01), Zelinski
patent: 3287333 (1966-11-01), Zelmski
patent: 3294768 (1966-12-01), Wofford
patent: 3317918 (1967-05-01), Foster
patent: 3331826 (1967-07-01), Talcott
patent: 3801554 (1974-04-01), Selman
Tetrahedron Letters #5, pp. 325-328, G. Britain-Pergman Press, "Organolithium Additions to Allylic Alcohols" by Crandall, 1969.
J. Pol. Sc. Part A-1 vol. 8, 533-543 (1970) "Effect of Lithium Alkoxide on Polymerization" by Hsieh.

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