Process for grafting maleic anhydride onto unsaturated polyolefi

Details Process for grafting maleic anhydride onto unsaturated polyolefi Process for grafting maleic anhydride onto unsaturated polyolefi

1989-08-01

1992-10-06

Carrillo, Ana L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525285, 525289, 525315, 525322, 525324, C08F 400, C08F25506

Patent

active

051532700

ABSTRACT:
Maleic anhydride is grafted onto unsaturated elastomeric terpolymers consisting of monomeric units coming from at least two different monomers having the formula R--CH.dbd.CH.sub.2 (R=hydrogen or an alkyl group containing from 1 to 6 carbon atoms) and from a conjugated or non-conjugated dienic monomer by mass reaction, which is carried out by heating at 120.degree.-350.degree. C. a mixture of said maleic anhydride with the terpolymer in the presence of a catalyst consisting of a compound having the formula:

REFERENCES:
patent: 3013066 (1961-12-01), Alderson
patent: 3995095 (1976-11-01), Short
patent: 4134927 (1979-01-01), Tomoshige
patent: 4845155 (1989-07-01), Dean
Alderson et al., "Olefin-to-Olefin Addition Reactions", Journal of American Chemical Society, vol. 87, No. 24 (Dec. 29, 1965), pp. 5638-5645.
Cramer, "Transition Metal Catalysis Exemplified by Some Rhodium-Promoted Reactions of Olefins," Accounts of Chemical Research, vol. 1 (1968), pp. 186-191.
Abstract of German reference 2049937 published Oct. 1970.
"Principles of Polymer Chemistry" by Paul J. Flory, Cornell University Press, Ithaca, N.Y., 1953: Condensation Polymerization, pp. 74-79.
"Polymer Reactions", American Chemical Society Symposium Held at Miami Beach, Fla., Apr. 9-14, 1967, edited by E. M. Fettes, published by Interscience Publishers (John Wiley & Sons, Inc.): Critical Factors Affecting Chemical Reactions on Polymers, pp. 1-5.

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