Porous solid material

Details Porous solid material Porous solid material

1997-08-01

1998-08-11

Fox, David T.

Plant husbandry

Process

521 50, 47 64, 260 292, A01G 3100, A01B 7900, A01C 100, C08J 900

Patent

active

057910855

ABSTRACT:
a porous solid material for plant propagation which includes granules of a porous expanded mineral, such as perlite or vermiculite, distributed within a porous, open-cell foamed hydrophilic water-retentive polyurethane matrix. The material may be molded into sheets of break-off units for seed germination and propagation.

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patent: 4175355 (1979-11-01), Dedolph
patent: 4241537 (1980-12-01), Wood
Johnson, P.C.; Isocyanate Reactions: Nature, Control and Significance in Manufacture of Polyurethanes; Advances in Polyurethane Technology; pp. 1, 7-8, 137-140, 151-153, 178-186, 196-197, 270-286; 1968.

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