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1. (WO1992009746) PAPER COATING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009746 International Application No.: PCT/GB1991/002109
Publication Date: 11.06.1992 International Filing Date: 28.11.1991
Chapter 2 Demand Filed: 03.06.1992
IPC:
D21H 17/00 (2006.01) ,D21H 19/58 (2006.01) ,D21H 21/52 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17
Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19
Coated paper; Coating material
36
Coatings with pigments
44
characterised by the other ingredients, e.g. the binder or dispersing agent
56
Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
58
Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
H
PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21
Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties
50
characterised by form
52
Additives of definite length or shape
Applicants:
ECC INTERNATIONAL LIMITED [GB/GB]; 1015 Arlington Business Park Theale Reading RG7 4SA, GB (AllExceptUS)
GANE, Patrick, Arthur, Charles [GB/GB]; GB (UsOnly)
Inventors:
GANE, Patrick, Arthur, Charles; GB
Agent:
NASH, David, Allan ; Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT, GB
Priority Data:
9026012.629.11.1990GB
Title (EN) PAPER COATING
(FR) COUCHAGE DE PAPIER
Abstract:
(EN) There is disclosed a paper coating composition for use in preparing a coated paper for gravure printing, which composition comprises a suspension in water of 100 parts by weight, on a dry weight basis, of a pigment or mixture of pigments having a particle size distribution such that at least 75 % by weight of the particles have an equivalent spherical diameter smaller than 2$g(m)m, and a latex the particles of which do not swell appreciably in water and which have an average size less than 0.2$g(m)m, the latex being employed in an amount such as to provide from 3 to 15 parts by weight latex solids and the composition being substantially free from any viscosifying, film-forming hydrophilic polymeric material.
(FR) On décrit une composition de couchage de papier utilisée pour préparer du papier couché pour l'héliogravure, laquelle composition comprend une suspension dans de l'eau de 100 parties par poids, basées sur le poids sec, d'un pigment ou d'un mélange de pigments présentant une distribution granulométrique telle qu'au moins 75 % en poids des particules présentent un diamètre sphérique équivalent inférieur à 2$g(m)m, et un latex dont les particules ne gonflent pas sensiblement dans l'eau et présentent une grosseur moyenne inférieure à 0,2$g(m)m, ce latex étant utilisé en une quantité telle qu'il fournit de 3 à 15 parties en poids de solides de latex, la composition étant pratiquement dépourvue de matériau polymère hydrophile, filmogène et produisant de la viscosité.
Designated States: AU, BR, CA, FI, JP, NO, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
FI932432NO19931215ES2079171EP0559723US5420190JP3037421
JPH06504328CA2088375DE000069114515GB2250296AU1991090435DK0559723