Pipes made of polypropylene reinforced with carbon fibers

Details Pipes made of polypropylene reinforced with carbon fibers Pipes made of polypropylene reinforced with carbon fibers

1983-12-20

1984-09-04

Dixon, Jr., William R.

Pipes and tubular conduits

Reinforced

With embedded element

138177, 428 36, 524495, 524496, 524522, F16L 900

Patent

active

044691386

ABSTRACT:
Pipes of polypropylene reinforced with carbon fibers comprising 100 parts by weight of polypropylene, 10 to 40 parts by weight of a modified polypropylene by an organic unsaturated carboxylic acid or a copolymer of propylene and the organic unsaturated carboxylic acid and 5 to 70 parts by weight of carbon fibers of 5 to 30 micrometers in diameter and a ratio of diameter to length of 10 or more. The rate of retention of the original tensile strength of pipe in boiling water for 6 months at 100.degree. C. was higher than 95%.

REFERENCES:
patent: 4057610 (1977-11-01), Goettler et al.

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