Cellular material

Details Cellular material Cellular material

1975-02-13

1977-03-01

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25AE, 260 25AF, 260 25AH, 260 25AK, 260 25AW, 260 25EP, 260 25HB, 260 25F, 260 25N, 260 28R, 260 285AS, 260 285B, 260724, 260758, C08J 906, C08L 2100, C08L 9550

Patent

active

040101231

ABSTRACT:
The invention comprises the production of a cellular material by vulcanizing a mixture containing between 10% and 90% of an ebonite-forming rubber and sufficient vulcanizing agents to form an ebonite with the rubber, not more than 10% of a solid filler preferably in the absence of such filler, and a chemical blowing agent, whereby an ebonite structure is formed, so that, during the vulcanization, the chemical blowing agent decomposes or reacts to produce a gas, the viscosity of the composition during the production of the gas increasing whereby cells are retained in the composition wherein the mixture further contains between 5% and 87% of a bituminous material.

REFERENCES:
patent: 2271498 (1942-01-01), Overstreet
patent: 2404171 (1946-07-01), Hamilton
patent: 2807596 (1957-09-01), Flickinger
patent: 3354105 (1967-11-01), Trieschock

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