公开(公告)号：EP0373306B1

公开(公告)日：1994-11-30

申请号：EP89117263.7

申请日：1989-09-19

申请人： Laporte Industries Limited

发明人： Derrick, Arthur Percy

IPC分类号： D21H17/69

CPC分类号： D21H21/10 ,  D21H17/42 ,  D21H17/43 ,  D21H17/455 ,  D21H23/18 ,  D21H23/76

公开(公告)号：EP0362770B1

公开(公告)日：1994-07-27

申请号：EP89118245.3

申请日：1989-10-02

申请人： HERCULES INCORPORATED

发明人： Smith, Douglas Charles

IPC分类号： D21H21/18 ,  D21H17/72

CPC分类号： D21H17/455 ,  D21H17/32 ,  D21H17/42 ,  D21H17/43 ,  D21H21/18

公开(公告)号：EP0408567B1

公开(公告)日：1994-05-25

申请号：EP89901903.8

申请日：1989-01-12

申请人： EKA NOBEL INC.

发明人： RUSHMERE, John, D.

IPC分类号： D21H23/76 ,  D21H21/10

CPC分类号： D21H23/765 ,  D21H17/43 ,  D21H17/68 ,  D21H17/69 ,  D21H21/10 ,  D21H23/14

摘要： A papermaking stock comprising cellulose fibers in an aqueous medium at a concentration of preferably about 50% by weight of the total solids in the stock including a retention and dewatering aid comprising a two component combination of an anionic polyacrylamide and a cationic colloidal silicia sol. The stock exhibits enhanced resistance to shear forces during the papermaking process. A papermaking process is also described.

公开(公告)号：EP0506808B1

公开(公告)日：1994-03-16

申请号：EP91901829.1

申请日：1990-12-20

申请人： COATEX, S.A.

发明人： BONNET, Catherine ,  MONGOIN, Jacques ,  RAVET, Georges ,  SUAU, Jean-Marc

IPC分类号： C08F220/06 ,  B01F17/00

CPC分类号： B01F17/005 ,  B01F17/0057 ,  C01F11/185 ,  C08F220/04 ,  C09C3/006 ,  C09D17/004 ,  D21H17/41 ,  D21H17/43 ,  D21H17/455 ,  D21H21/52

摘要： Water-soluble, amphoteric grinding and/or dispersion agent for aqueous mineral suspensions with the formula (I) having the general form: -(A)p-(B)q-(C)r, where (A) is an anionic ethylene monomer with carboxylic function, (B) is a non-ionic ethylene monomer, (C) is a cationic ethylene monomer comprising at least two oxyalkyl groups, and where: p ranges from 35 to 65 % by weight with respect to the total weight of monomers; q ranges from 20 % to 60 % by weight with respect to the total weight of monomers; r ranges from 5 % to 20 % by weight with respect to the total weight of monomers; and p + q + r = 100 % of the total weight of monomers. The described agent provides for the preparation of aqueous suspensions of mineral fillers and/or pigments with a zeta potential close to 0, a concentration at least equal to 50 % by weight of dry matter, which are suitable for use in the fields of paper, paints and plastic materials.

公开(公告)号：EP0300909B1

公开(公告)日：1992-10-21

申请号：EP88401891.2

申请日：1988-07-21

申请人： EXXON CHEMICAL PATENTS INC.

发明人： Goguelin, Michel

IPC分类号： D21H23/00 ,  C08J5/00

CPC分类号： D21H17/43 ,  D21H13/14 ,  D21H13/40 ,  D21H17/33 ,  D21H17/35 ,  D21H17/375 ,  D21H17/45 ,  D21H21/08 ,  D21H21/28 ,  D21H23/765

公开(公告)号：EP0280043B1

公开(公告)日：1991-07-10

申请号：EP88100991.4

申请日：1988-01-23

申请人： BAYER AG

发明人： Sackmann, Günter, Dr. ,  Sümmermann, Klaus, Dr. ,  Alberts, Heinrich, Dr. ,  König, Joachim, Dr. ,  Bäumgen, Heinz

IPC分类号： D21H21/16

CPC分类号： D21H21/16 ,  D21H17/07 ,  D21H17/43 ,  D21H17/67

公开(公告)号：EP0228801B1

公开(公告)日：1991-01-02

申请号：EP86308989.2

申请日：1986-11-18

申请人： SEIKO KAGAKU KOGYO CO., LTD. ,  HOKUETSU PAPER MILLS, LTD. ,  NIPPON OIL CO. LTD.

发明人： Yoshioka, Shigehiko ,  Yamada, Hideto ,  Yata, Akihiro ,  Sato, Hisatake

IPC分类号： D21H17/33

CPC分类号： D21H17/375 ,  D21H17/15 ,  D21H17/43 ,  D21H17/455

公开(公告)号：EP0383514A1

公开(公告)日：1990-08-22

申请号：EP90301452.0

申请日：1990-02-12

申请人： CALGON CORPORATION

发明人： Hunter, W. E. ,  Falcione, Ronald J.

IPC分类号： D21H17/43 ,  D21H17/37

CPC分类号： D21H17/43 ,  D21H21/10

摘要： A method of improving the retention of starch in papermaking using blends of high and low molecular weight acrylic acid/acrylamide copolymers.

摘要翻译： 使用高分子量和低分子量丙烯酸/丙烯酰胺共聚物的共混物改善造纸中淀粉的保留性的方法。

公开(公告)号：EP0232299B1

公开(公告)日：1990-02-21

申请号：EP86904223.4

申请日：1986-07-22

申请人： NORSOLOR

发明人： GOLDSTEIN, Guy ,  PIERRE, Michel

IPC分类号： A61L15/00 ,  D04H1/64 ,  D21H17/34

CPC分类号： D21H17/43 ,  A61L15/425 ,  A61L15/60

摘要： The process applies to polymers obtained by a water-in-oil process, that is to say a reverse emulsion process or a suspension process in reversible phase. The process of fixation of this type of polymer in or on a porous support is characterized in that it comprises the impregnation of the porous support with said reverse suspension or emulsion resulting from the polymerization reaction and the removal of the solvent from the support. By said process, complexes are obtained which present improved absorption properties and offer a better holding of the product to the support.

公开(公告)号：EP0200504B1

公开(公告)日：1989-08-09

申请号：EP86303161.3

申请日：1986-04-25

申请人： ALLIED COLLOIDS LIMITED

发明人： Langley, John ,  Farrar, David

IPC分类号： D21H3/02 ,  C08J3/08

CPC分类号： D21H17/375 ,  D21H17/15 ,  D21H17/42 ,  D21H17/43 ,  D21H17/455