Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials
Patent
1975-02-24
1977-05-10
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Of inorganic materials
106 70, C04B 3304, B29H 720
Patent
active
040228576
ABSTRACT:
Sulfur-based foams are produced by heating to liquid state a sulfur formulation containing a minor amount of a gas-producing component in a first (molten) zone; passing the mixture maintained in liquid form to a second (mixing) zone where it is mixed with a foaming agent which in combination with the gas-produced compound releases gas, and the gas-containing mixture is passed from the second zone for use as a cellular construction material. Apparatus for carrying out the process is provided.
REFERENCES:
patent: 3337355 (1967-08-01), Dale et al.
Dale John M.
Ludwig Allen C.
Chevron Research Company
Newell Dix A.
Parrish John
Stoner, Jr. John
Turner W. Keith
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