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52. 发明专利

DE59408693D1 未知
公开(公告)号：DE59408693D1
公开(公告)日：1999-10-07
申请号：DE59408693
申请日：1994-08-10
申请人： SUED CHEMIE AG
发明人： HAEHN REINHARD , RUF FRIEDRICH
IPC分类号： B41M5/155 , C09C1/40 , C09C1/42
摘要： PCT No. PCT/EP94/02656 Sec. 371 Date Jun. 13, 1995 Sec. 102(e) Date Jun. 13, 1995 PCT Filed Aug. 10, 1994 PCT Pub. No. WO95/05422 PCT Pub. Date Feb. 23, 1995A process is described for producing neutral to alkaline color developer pigments for use in carbon-free transfer papers from an acid-activated smectic phyllosilicate and basically reacting chemicals. The process is characterized in that the acid-activated phyllosilicate with a layer structure which is essentially still intact is reactive without intermediate drying with the basically-reacting chemicals up to partial or complete decomposition of the amorphous silicic acid formed on the corners and edges of the phyllosilicate crystallites without significant re-exchange of the hydronium ions inserted between the layers of the phyllosilicate by alkali or earth alkali ions. The color developer pigments can be used in suspensions with concentrations from 30 to 50% by weight, preferably from roughly 38 to 48% by weight.

54. 发明专利

FI91003B 未知
公开(公告)号：FI91003B
公开(公告)日：1994-01-14
申请号：FI885428
申请日：1988-11-23
申请人： SUED CHEMIE AG
发明人： VON RAVEN AXEL , WEIGL JOSEF , RUF FRIEDRICH , MAYER HERBERT
IPC分类号： D21C9/16
摘要： An alkaline peroxide-containing bleaching agent (bleach) for chemical woodpulp, mechanical pulp and waste paper and/or their mixtures, which also contains, if desirable, waterglass and/or a complexing agent, contains as an additive a silicaceous ion exchanger modified with an alkali metal carbonate or an alkali metal hydrogen carbonate.

55. 发明专利

CA2097376A1 COATING PIGMENT 未知
公开(公告)号：CA2097376A1
公开(公告)日：1993-11-30
申请号：CA2097376
申请日：1993-05-31
申请人： SUED CHEMIE AG
发明人： COUTELLE HELMUT , HLAVATSCH JOACHIM , RUF FRIEDRICH , SCHOTT HARTMANN
IPC分类号： C09C1/28 , B41M1/02 , B41M1/10 , B41M1/36 , C01B33/20 , C01B33/26 , C09C1/00 , C09C1/42 , C09D1/00 , C09D1/02 , C09D5/00 , C09D7/12 , D21H19/38 , D21H19/40 , D21H19/42 , B05D5/04 , D21H19/84
摘要： A coating pigment for coating printing media, especially paper and cardboard, is made with at least one swellable layer silicate which can be fixed on the printing medium essentially without binders, where the amount of swellable layer silicate is at least 30 weight percent and the swelling volume of the coating pigment is 5 to 30 ml, based on suspension of 2 g coating pigment in 100 ml water. A water-based coating which contains such a coating pigment and a printing medium that is coated on one or both sides with the coating pigment or coating are also described. The deinkability of printed printing media coated with the coating pigment is improved.

56. 发明专利

FI924394A 未知
公开(公告)号：FI924394A
公开(公告)日：1993-04-09
申请号：FI924394
申请日：1992-09-30
申请人： SUED CHEMIE AG
发明人： HAEHN REINHARD , RUF FRIEDRICH
IPC分类号： B41M5/337 , C09C1/00 , C09C1/02 , C09C1/40 , C09C1/42 , C09C3/06
摘要： The invention relates to a particulate material for use as a filler in the thermosensitive layer of a thermosensitive recording material, which is characterised in that the material is in the form of finely divided white pigments which are predominantly bonded to amorphous precipitated silicic acid, where the amorphous precipitated silicic acid either (a) surrounds the finely divided white pigment in the form of a layer or (b) is bonded to the finely divided white pigment in a point-like manner in the form of fine particles, the water content of the material (b) being from 1 to 10 % by weight, preferably from 2 to 8 % by weight.

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