Patent GB-880726-A (GB)
Title: Blood glue bases and blood glue made from such bases
IPC: C09J189/00
Filed: 1958-02-04
Abstract: A glue is made by adding 10 to 1,000 parts of a thermo setting resin, e.g. phenol-formaldehyde, to a dispersion of 100 parts of a blood glue base in 300 to 1,200 parts of water, the base being prepared by mixing particles of soluble dried blood and filler and heating the moisture-containing mixture, i.e. 2-35% by weight, to above 170 DEG F. to render the blood insoluble in water, but soluble in alkali hydroxide below 100 DEG F.  Suitable fillers include, wood, walnut shell or soyabean flours, diatomaceous earth, powdered clay, talc, in amount 10 to 100% by weight of the dried blood, or 0,5 to 10% of an alkaline earth metal carbonate, e.g. calcium carbonate, may be used, and additional filler, e.g. such as those specified, added after heating.  The glue may include conditioning agents, e.g. 1 to 50 parts alkali metal caustic, 10 to 400 parts alkali metal silicate, 1 to 50 parts lime, and, as an anti-foaming agent 1 to 10 parts of pipe oil.  Specification 810,338 is referred to.ALSO:A blood glue base is made by mixing particles of soluble dried blood and filler, the mixture having a moisture content of from 2% to 35%, preferably 6% to 20%, by weight, the blood being denatured by heating to above 170 DEG F until it is substantially insoluble in water but retains substantial solubility in dilute aqueous alkali metal hydroxide below 100 DEG F, the mixture being then cooled to below 170 DEG F.  The mixture may be agitated during heating and contains either organic fillers, e.g., wood, walnut shell or soya bean flours, or inorganic fillers, e.g., diatomaceous earth, powdered clay, talc, in amount 10 to 100%, preferably 20% to 60%, by weight of the dried blood. Alternatively 0.5 to 10%, preferably 3% to 10%, of an alkaline earth metal carbonate, e.g., calcium carbonate, may be used as filler and additional fillers, e.g., those specified above, incorporated after heating.  To make glue 300 to 1200, preferably 600 to 900, parts of water are added to 100 parts by weight of glue base together with conditioning agents, e.g., alkali metal caustic 1 to 50 parts, alkali metal silicate 10 to 400 parts, lime 1 to 50 parts and 10 to 1,000 parts of thermosetting resin, e.g., a phenolaldehyde resin, and 1 to 10 parts of an antifoaming agent, e.g., pine oil, may also be incorporated.  Specification 810,338 is referred to.ALSO:A blood glue base is made by mixing particles of soluble dried blood and solid filler, the mixture having a moisture content of from 2% to 35%, preferably 6 to 20%, by weight, the blood being denatured by heating to above 170 DEG F. until it is substantially insoluble in water but retains substantial solubility in dilute aqueous alkali metal hydroxide below 100 DEG F,, the mixture being then cooled, to below 170 DEG F.  The mixture, may be agitated during heating and contains either organic fillers, e.g. wood flour, walnut shell flour, soyabean flour, or inorganic fillers, e.g. diatomaceous earth, powdered clay, talc, in proportion 10% to 100%, preferably 20 to 60%, by weight of the dried blood. Alternatively the filler may be an alkaline earth metal carbonate e.g. calcium carbonate, in proportion of from 0,5 to 10%, preferably 3 to 10% and additional filler, e.g. as specified above, added after heating.  To make glue, 300 to 1200, preferable 600 to 900, parts of water are added to 100 parts by weight of base together with conditioning agents such as alkali metal caustic, 1 to 50 preferably 5 to 20 parts; alkali metal silicate, 10 to 400 preferably 20 to 200 parts; lime, 1 to 50 preferably 5 to 25 parts. Thermosetting resins, preferably phenol-aldehyde resin, in amount of from 10 to 1000 parts, and 10 parts pene oil as anti-foaming agent may also be added.  Specification 810,338 is referred to.