Ethylene-acid copolymer and ionomer blends having improved high

Details Ethylene-acid copolymer and ionomer blends having improved high Ethylene-acid copolymer and ionomer blends having improved high

1995-12-22

1996-12-24

Jagannathan, Vasu S.

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

Synthetic resins

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

525221, C08L 2326

Patent

active

055874304

ABSTRACT:
Ionomeric compositions which are blends of a first ethylene/acid copolymer polymerized at low temperatures and normal pressures, and a highly neutralized second ethylene/acid copolymer, polymerized at normal polymerization temperatures and pressures but having a high melt index, above 80 g/10 min., in the parent acid copolymer and also a high melt index, above 3.0 g/10 min., in the resulting neutralized ionomer, have both improved high temperature mechanical properties and improved melt processability. Alternatively, the first and second acid copolymers may be blended and neutralized in the same melt process step, or first melt blended, and then neutralized in a subsequent melt process step.

REFERENCES:
patent: 4248990 (1981-02-01), Pieski et al.
patent: 4911451 (1990-03-01), Sullivan
patent: 5000459 (1991-03-01), Isaac
patent: 5298571 (1994-03-01), Statz
patent: 5328959 (1994-07-01), Sullivan
patent: 5397840 (1995-03-01), Sullivan et al.
patent: 5415937 (1995-05-01), Cadorniga

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