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AbstractIn the case of extruding a W/O type emulsion having a high viscosity obtained by stirring a mixture of a vinyl monomer solution composed of a vinyl monomer which is water insoluble and in a liquid state at normal temperature, a surface active agent having a hydrophilic-lipophylic balance of 3 to 6, and a polymerization catalyst with water, cement, and synthetic fibers through a die, at least one rectifying plate having a given form is disposed in the die near the outlet thereof to direct the synthetic fibers in the W/O type emulsion to the extruding direction.When the tabular plate obtained by extrusion-molding the W/O type emulsion by the method of this invention is hardened and dried, a light-weight and high-strength plastic concrete suitable for building materials is obtained. | InventorsAssigneeApplicationNo. 039007 filed on 04/15/1987US Classes:264/108, ORIENTING OR ALIGNING SOLID PARTICLES IN FLUENT MATRIX MATERIAL264/211.24, Curing or polymerization in the extruder (includes incomplete polymerization or curing, or coagulating rubber)264/333, Inorganic hydraulic settable material shaping425/382.4, Including restriction upstream of shaping orifice and downstream of primary pressurizing means425/467Core, pin or insert memberField of Search264/108, ORIENTING OR ALIGNING SOLID PARTICLES IN FLUENT MATRIX MATERIAL264/211.11, Nonresinous material only (e.g., ceramic, soap, cellulose, etc.)264/211.24, Curing or polymerization in the extruder (includes incomplete polymerization or curing, or coagulating rubber)264/333, Inorganic hydraulic settable material shaping264/176.1, Shaping by extrusion264/82, REACTIVE GAS OR VAPOR TREATMENT OF WORK264/109, FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED PARTICLES264/125, Sintering or heat fusing particles264/126, Of organic material264/42, Of inorganic materials425/466, Adjustable shaping orifice or shape imparting insert member (e.g., core, etc.)425/467, Core, pin or insert member425/206, Within or at forming means425/207, Within pressurizing chamber425/382.4Including restriction upstream of shaping orifice and downstream of primary pressurizing meansExaminersPrimary: Thurlow, JefferyAttorney, Agent or FirmUS Patent References3168509, 3267518, 3532781, 3901991, 3972969, Manufacture of cement-resin composite articlesIssued on: 08/03/1976 Inventor: Rio , et al.4002713, Cementing compositions and concretes and mortars derived therefrom Issued on: 01/11/1977 Inventor: Duncan , et al.4048276, Structural building components and method for production on the basis of laterite Issued on: 09/13/1977 Inventor: Hansen , et al.4125497, Method for manufacturing heat-cured molded articles from cement Issued on: 11/14/1978 Inventor: Josten , et al.4202857, Casting of articles from compositions containing calcined gypsum and Portland cement Issued on: 05/13/1980 Inventor: Lowe4271112, Process for the manufacture of rotationally-symmetrical components from short-fibered molding material Issued on: 06/02/1981 Inventor: Rossman , et al.4293517Die with insert and its use Issued on: 10/06/1981 Inventor: Knox Foreign Patent References
International ClassB29C 047/12Foreign Application Priority Data1986-04-26 JP |