Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1978-10-30
1980-12-23
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
252 62, 428407, B32B 1904, B32B 2706, B32B 2714, C04B 4300
Patent
active
042411386
ABSTRACT:
A porous heat-insulation material comprising blocks molded from granules of a porous mineral filler with a polyolefin coating. The coating thickness is 1/1000 to 1/25 of the average granule diameter; in contact regions, said granules are spaced from each other at a distance of from 0.5 to 2.0 of the coating thickness, and the mass ratio between said porous mineral filler and said polyolefin is 80-98:20-2, respectively. The material of this invention has a volume mass of from 60 to 250 kg/m.sup.3. The material features a high plasticity (its flexural strength is as high as 3-4 kgf/cm.sup.2). The compression strength of the material is 9-12 kgf/cm.sup.2. The material also has a low thermal conductivity; its thermal conductivity coefficient is 0.03-0.04 kcal/m.hr..degree.C. The material is substantially non-combustible.
REFERENCES:
patent: 3104196 (1963-09-01), Shannon
patent: 3551274 (1970-12-01), Shannon
patent: 3655564 (1972-04-01), Barrington
patent: 4066539 (1978-01-01), Hachisu et al.
patent: 4107376 (1978-08-01), Ishikawa
Chentemirov Minas G.
Dyachkovsky Fridrikh S.
Enikolopov Nikolai S.
Gavrilov Jury A.
Gorbachev Jury G.
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