Low-haze ionomers of copolymers of alpha-olefins, carboxylic aci

Details Low-haze ionomers of copolymers of alpha-olefins, carboxylic aci Low-haze ionomers of copolymers of alpha-olefins, carboxylic aci

1995-06-05

1996-09-10

Lipman, Bernard

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

Synthetic resins

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

5253306, 525366, 525367, 525368, 525369, C01F 842

Patent

active

055546986

ABSTRACT:
Ionomer compositions which have improved optical properties are disclosed. These compositions comprise ionomers which can be represented as the polymerization product of alpha-olefins having from two to eight carbon atoms, esters of alpha, beta-ethylenically-unsaturated carboxylic acids, metal salts of acrylic and methacrylic acid, and optional alpha, beta-ethylenically-unsaturated comonomers which impart some desired polymer property or properties, such as acidity and/or solvent resistivity. Also disclosed are methods of making these ionomer compositions in a reactive extruder and treating the compositions with acid to impart acidity to the compositions or to only the surface of the compositions.

REFERENCES:
patent: 4188441 (1980-02-01), Cook
patent: 5003001 (1991-03-01), Hasenbein et al.

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