Poly(methyl methacrylate) polycarbonate block copolymers

Details Poly(methyl methacrylate) polycarbonate block copolymers Poly(methyl methacrylate) polycarbonate block copolymers

1980-09-26

1982-03-09

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525468, C08G 8102

Patent

active

043190030

ABSTRACT:
Poly(methyl methacrylate) is modified to have improved impact resistance by forming an ABA-type block copolymer where the A segments are poly(methyl methacrylate) and the B segment is polycarbonate. The ABA block copolymer is moldable, transparent and has a number average molecular weight (Mn) in the range of from about 15,000 to 100,000.

REFERENCES:
patent: 3462515 (1969-08-01), Cantrill
patent: 3692870 (1972-09-01), Schnell et al.
patent: 4107386 (1978-08-01), Gruber et al.
patent: 4196276 (1980-04-01), Schreckenberg et al.

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