EP 0261039 B1 19901212 - COMPLEX PIGMENTARY COMPOSITIONS FOR COATING PAPER
Title (en)
COMPLEX PIGMENTARY COMPOSITIONS FOR COATING PAPER
Publication
Application
Priority
FR 8612099 A 19860822
Abstract (en)
[origin: US4775420A] Complex pigment compositions for the coating of paper, comprising an aqueous phase, at least one pigment of mineral origin, a binding agent, optionally various customary additives, and a dispersing agent comprised of carboxyl-containing polymers which are water soluble and are converted to form salts. The polymers are obtained by known polymerization processes. The dispersing agent (a) has a specific viscosity (measured on the sodium salt) of between 0.25 and 2; and (b) is converted to the salt form to the extent of at least 60% by at least one salt-forming agent which has a polyvalent function. These complex pigment compositions have very low viscosities. They may also simultaneously contain diverse pigments, such as kaolin, titanium dioxode, and calcium carbonate, without suffering the usual increase in viscosity and the risk of setting.
IPC 1-7
IPC 8 full level
C09C 3/10 (2006.01); D21H 19/16 (2006.01); D21H 19/38 (2006.01); D21H 19/56 (2006.01); D21H 19/58 (2006.01)
CPC (source: EP US)
D21H 19/58 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES GB IT NL SE
DOCDB simple family (publication)
EP 0261039 A1 19880323; EP 0261039 B1 19901212; AR 242618 A1 19930430; AT E59069 T1 19901215; AU 604251 B2 19901213; AU 7668387 A 19880225; BR 8704323 A 19880419; CA 1289288 C 19910917; DE 3766679 D1 19910124; ES 2019965 B3 19910716; FI 873622 A0 19870821; FI 873622 A 19880223; FI 89190 B 19930514; FI 89190 C 19930825; FR 2603042 A1 19880226; FR 2603042 B1 19881110; JP S6359497 A 19880315; US 4775420 A 19881004; ZA 875892 B 19880212
DOCDB simple family (application)
EP 87420222 A 19870819; AR 30849487 A 19870821; AT 87420222 T 19870819; AU 7668387 A 19870807; BR 8704323 A 19870821; CA 545082 A 19870821; DE 3766679 T 19870819; ES 87420222 T 19870819; FI 873622 A 19870821; FR 8612099 A 19860822; JP 20805287 A 19870821; US 3158987 A 19870330; ZA 875892 A 19870810