Method of making pipe having a liner layer of mixed resins

Details Method of making pipe having a liner layer of mixed resins Method of making pipe having a liner layer of mixed resins

1975-05-13

1976-10-26

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264257, 264270, 264271, 264279, 264310, 264331, B29C 504, B29D 302, B29D 2300

Patent

active

039884120

ABSTRACT:
Method of making a plastic pipe and method of making same, having an outer shell of reinforced thermo-setting resin and an inner shell of thermo-setting and thermo-plastic resins.

REFERENCES:
patent: 2567719 (1951-09-01), Loritsch et al.
patent: 2887728 (1959-05-01), Usab
patent: 2994919 (1961-08-01), Schafer et al.
patent: 3256362 (1966-06-01), Craubner et al.
patent: 3338271 (1967-08-01), Plummer et al.
patent: 3363028 (1968-01-01), Szalay
patent: 3397169 (1968-08-01), Wilkinson
Conant et al., Chemistry of Organic Compounds, MacMillan, N.Y. (1939), pp. 275-278 relied on.

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