Methacrylate resin composition

Details Methacrylate resin composition Methacrylate resin composition

1993-05-25

1994-06-28

Seidleck, James J.

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

Synthetic resins

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

525 83, 525 85, 525222, 525228, 525242, 525309, 525902, 525 71, C08L 5100, C08L 3312

Patent

active

053247817

ABSTRACT:
A methacrylate resin composition containing 20 to 99% by weight of a methacrylate resin and 80 to 1% by weight of a methacrylic two-layer polymer which has an inner layer and an outer layer and is characterized by the properties: (a) the inner layer having repeating units derived from methyl methacrylate and having a viscosity average molecular weight of 500,000 to 5,000,000, (b) the outer layer of the two-layer polymer having repeating units derived from methyl methacrylate and having a viscosity average molecular weight of 50,000 to 300,000, (c) a weight ratio of the inner layer to the outer layer of 1:9 to 9:1, (d) a glass transition temperature of 50.degree. to 120.degree. C. and (e) an average particle size of 200 to 5000 .ANG., which composition is excellent in moldability, resistance to heat distortion, mechanical properties and also solvent resistance.

REFERENCES:
patent: 4897449 (1990-01-01), Gaillard et al.
patent: 5063259 (1991-11-01), Wanat et al.

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