Process of partially expanding thermoplastic particles using a m

Details Process of partially expanding thermoplastic particles using a m Process of partially expanding thermoplastic particles using a m

1975-01-15

1978-02-14

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

260 25B, 264DIG9, B29D 2700

Patent

active

040738434

ABSTRACT:
Thermoplastic material in particulate form and containing a blowing agent is partially expanded by means of a mixture of steam and another hot dry gas such as air present in specified proportions in said mixture.

REFERENCES:
patent: 3023175 (1962-02-01), Rodman
patent: 3378245 (1968-04-01), Frank
patent: 3428720 (1969-02-01), Denslow
patent: 3792138 (1974-02-01), Lammers
patent: 3832430 (1974-08-01), Noziere
patent: 3963816 (1976-06-01), Smith
Koppers Bulletin, "Technical Manual Dylite Expandable Polystyrene; Pre-Expansion of Dylite," Pittsburg, Pa., Koppers Co., Inc., Bulletin C-9-273, Chapter 3b, Nov. 15, 1959, p. 12.
Encyclopedia of Polymer Science and Technology, vol. 8, Section: "Mechanical Properties" New York, Interscience, c1968, pp. 445-451.
Brydson, J. A. "Plastics Materials", Princeton, N. J., D. Van Nostrand, c1966, pp. 33-37.
Encyclopedia of Polymer Science and Technology,Section: "Characterization of Polymers," vol. 3, New York, Interscience, c1965, pp. 619-631.
Celanese Bulletin GIC, 7th Edition: "Standard Tests On Plastics," Newark, N. J., Celanese Plastics Co., Div. of Celanese Corp., Apr. 1974, pp. 3, 11 and 12.

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