Radiation-resistant polypropylene resin composition

Details Radiation-resistant polypropylene resin composition Radiation-resistant polypropylene resin composition

1995-03-07

1996-08-20

Wu, David W.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524127, 524128, 524287, 524379, 526351, C08K 534

Patent

active

055480071

ABSTRACT:
A radiation-resistant polypropylene resin composition is disclosed which comprises a polypropylene having a substantially syndiotactic structure, and if desired, a phosphorus-containing anti-oxidant, an amine-containing anti-oxidant and/or a nucleating agent. Molded articles obtained from this resin composition can be utilized as containers for foods and medicines, and their physical properties scarcely deteriorate during sterilization by radiation.

REFERENCES:
patent: 3759926 (1973-09-01), Chalmers et al.
patent: 3940325 (1976-02-01), Hirao
patent: 4056507 (1977-11-01), Ramey et al.
patent: 4507415 (1985-03-01), Kasai et al.
patent: 4892851 (1990-01-01), Ewen et al.
patent: 5023286 (1991-06-01), Abe et al.

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