Ionomers having improved low temperature properties and blends t

Details Ionomers having improved low temperature properties and blends t Ionomers having improved low temperature properties and blends t

1987-07-21

1989-01-31

Bleutge, John C.

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

Synthetic resins

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

525201, 525221, C08L 7700, C08L 2300

Patent

active

048016497

ABSTRACT:
Ionomers of ethylene, unsaturated carboxylic acid and softening comonomer, e.g. alkyl acrylate and/or alkyl vinyl ether having improved low temperature properties are obtained by direct or graft copolymerization at a temperature of from about 100.degree. to about 200.degree. C., followed by neutralization of the carboxylic acid groups with metal ions, such ionomers being characterized by a low level of chain branching of up to about 5.5 chain branches/1000 backbone methylene units.

REFERENCES:
patent: 4299744 (1981-11-01), Stewart
patent: 4346194 (1982-08-01), Roura
patent: 4567219 (1986-01-01), Tominaga

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