Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-10-10
1980-03-25
Woodberry, Edward M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C08L 102
Patent
active
041949960
ABSTRACT:
A compression-molding composition contains a phenol-formaldehyde resin, a filler, a curing agent, viz. hexamethylenetetramine, a curing accelerator such as calcium oxide or magnesium oxide, and a lubricant such as stearin or stearates. The filler comprises a product resulting from the treatment of crushed wood with an aqueous solution of phenol and formaldehyde at the boiling temperature of said solution in the presence of hydrochloric acid at a weight ratio between phenol, formaldehyde, water, hydrochloric acid, crushed wood equal to 0.15-0.80:0.045-0.864:6-15:0.0435-0.1086:1 respectively. Proportions of the components are as follows, parts by weight:
REFERENCES:
Chem. Abst. 71:40452w, Polycondensation of Phenol and Formaldehyde, Krasnoselov et al.
Chem. Absts. 71:13739p, Hardenable Phenolic Molding Compositions, Ruetgerswerke.
Chem. Absts. 81:111220p, Purification of Water-Production-Phenol-Formaldehyde Resins, Krasnoselov et al.
Chem. Absts. 86:173343t, Role-Wood Pulp Modified-P/Foligomer, Popova et al.
Babina Margarita D.
Dunjushkin Evgeny S.
Popova Galina I.
Smirnov Jury M.
Sokolov Anatoly D.
Proizvodstvennoe Obiedinenie "Uralkhimplast"
Uralsky Lesotekhnichesky Institut
Woodberry Edward M.
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