Making cross-linked styrene polymer foam

Details Making cross-linked styrene polymer foam Making cross-linked styrene polymer foam

1982-06-18

1984-06-12

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264176R, 264211, 2643781, 264DIG18, 264DIG83, 521 79, 521147, B29D 2700

Patent

active

044540868

ABSTRACT:
High quality plastic foam and the like expanded products and articles are made by incorporating a blowing agent in an acid-containing alkenyl aromatic polymer, such as a copolymer of styrene and acrylic acid; extruding while cross-linking the polymer with a polyfunctional cross-linking agent.

REFERENCES:
patent: 3651183 (1972-03-01), Hosoda et al.
patent: 3960784 (1976-06-01), Rubens
patent: 4020025 (1977-04-01), Zeitler et al.
patent: 4108934 (1978-08-01), Rubens et al.
patent: 4155965 (1979-05-01), Allada

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