Showing papers on "Prepared Material published in 1996"

Production of fiber-reinforced cement board material

Abstract: PURPOSE: To obtain a fiber-reinforced cement board material, excellent in strength, processability and execution properties and capable of effectively utilizing industrial wastes. CONSTITUTION: This method for producing a fiber-reinforced cement board material is obtained by blending 80-99.8wt.% blending material for the fiber- reinforced cement board comprising a cement, a silica-based powder, pulp, a lightweight aggregate such as perlite and, as necessary, an organic fiber such as a polypropylene fiber, an extender, etc., prepared according to a conventional method with 0.2-20wt.% fine FRP powder finely pulverized to <=1mm particle diameter, adding water thereto, then mixing and stirring the resultant mixture, forming the prepared material into a board and then curing the board in a high-temperature and high-pressure autoclave.

Whey prepared material and its production

Abstract: PURPOSE: To simply, inexpensively and efficiently obtain the prepared material in which excess threonine content in a raw material whey is reduced to proper level by subjecting the raw material whey to heat treatment under specific conditions and removing the aggregated protein. CONSTITUTION: Raw material whey (preferably cheese whey or rennet whey) is subjected to heat treatment under conditions in which 15-40% of total protein in raw material whey is insolubilized at pH4.6±0.1 and >=70 deg.C, preferably at 70-95 deg.C. Then, the aggregated protein is removed, e.g. using a membrane filter to provide the objective prepared material, preferably having a threonine content in the amino acid composition reduced to 5-6wt.%. Furthermore, the above heating is preferably carried out for 15sec to 5min. An ultrafilter membrane, etc., having 20000-500000 dalton fractional molecular weight is used as the membrane filter.