Aragonitic precipitated calcium carbonate pigment for coating ro

Details Aragonitic precipitated calcium carbonate pigment for coating ro Aragonitic precipitated calcium carbonate pigment for coating ro

1997-05-16

1999-01-19

Le, H. Thi

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428340, 4285375, B32B 516

Patent

active

058612092

ABSTRACT:
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 m.sup.2 /g to about 15 m.sup.2 /g, preferably from about 5 m.sup.2 /g to about 7 m.sup.2 /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.

REFERENCES:
patent: 4714603 (1987-12-01), Vanderheiden
patent: 5007964 (1991-04-01), Tsukisaka et al.
patent: 5120365 (1992-06-01), Kogler
patent: 5478388 (1995-12-01), Gane et al.
patent: 5676746 (1997-10-01), Brown
patent: 5731034 (1998-03-01), Husband
patent: 5759347 (1998-06-01), Leube et al.

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