Process for the preparation of carboxylated propylene polymers

Details Process for the preparation of carboxylated propylene polymers Process for the preparation of carboxylated propylene polymers

1988-04-22

1989-07-18

Henderson, Christpher

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

Synthetic resins

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

525351, C08L 7700, C08L 2310

Patent

active

048494771

ABSTRACT:
A process for the preparation of carboxylated propylene homo- and copolymers which comprises the reaction of a thermoplastic propylene homo- or copolymer with an azidosulfonyl- benzoic acid by mechanically mixing said polymer and said acid at a temperature of at least 180.degree. C. in the substantial absence of a free-radical initiator. The carboxylated polymers thus prepared display considerably improved viscosity characteristics and can advantageously be used in novel polymer blends with polyamide polymers as well for the preparation of novel ionomers by reaction with a metal compound of basic character based on a mono-, di- or trivalent metal.

REFERENCES:
patent: 3220985 (1965-11-01), Beslow
patent: 4548993 (1985-10-01), Garagnani et al.
patent: 4555566 (1985-11-01), Arita
patent: 4612155 (1986-09-01), Wong
patent: 4670508 (1987-01-01), Ohdaira

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