发明名称 Aragonittisk presipitert kalsiumkarbonatpigment for bestrykning av dyptrykktrykkpapir
摘要 <p>The present invention relates to a paper coated with a coating pigment for rotogravure printing, and to a method for preparing such a paper. In addition, the invention relates to a method for the preparation of an aragonitic calcium carbonate pigment for coating paper that is useful in rotogravure printing. The present invention also relates to precipitated calcium carbonate particles having an aspect ratio of from about 3:1 to about 15:1, preferably from about 4:1 to about 7:1, and a multimodal particle size distribution, which is preferably bimodal or trimodal. Preferably, the aragonitic precipitated calcium carbonate is present in an amount from about 20 percent to about 100 percent by weight. Typically, the aragonitic precipitated calcium carbonate has a specific surface area of from about 4 m2/g to about 15 m2/g, preferably from about 5 m2/g to about 7 m2/g. Precipitated calcium carbonate pigments of the invention may also be used with titanium dioxide, talc, calcined clay, satin white, plastic pigments, aluminum trihydrate, mica, or mixtures thereof. Other useful additives include a synthetic latex binder, such as a styrene/butadiene or acrylic binder, a starch cobinder, a starch insolubilizer, such as a melamine/formaldehyde resin, and a calcium stearate lubricant.</p>
申请公布号 NO995603(D0) 申请公布日期 1999.11.15
申请号 NO19990005603 申请日期 1999.11.15
申请人 MINERALS TECHNOLOGIES INC 发明人 HASKINS, WILLIAM JOHN;OSTERHUBER, EDWARD JOSEPH
分类号 C01F11/18;D21H19/38;D21H21/52;(IPC1-7):D21H 主分类号 C01F11/18
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