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EP 0440419 A1 19910807 - Composite kaolin pigment for paper.

Title (en)

Composite kaolin pigment for paper.

Title (de)

Für Papier hergestellte Pigmente aus Gemischen von Kaolin.

Title (fr)

Pigment composite à base de kaolin pour le papier.

Publication

EP 0440419 A1 19910807 (EN)

Application

EP 91300668 A 19910129

Priority

US 47130490 A 19900129
US 49428990 A 19900316
US 63827491 A 19910107

Abstract (en)

A filling or coating pigment for paper comprises mixed particles of chemically bulked hydrous kaolin pigment and low abrasion calcined kaolin pigment, the weight ratio of chemically bulked to calcined kaolins preferably being from 9:1 to 1:9.

IPC 1-7

D21H 17/68; D21H 19/40

IPC 8 full level

D21H 17/68 (2006.01); D21H 19/40 (2006.01)

CPC (source: EP)

D21H 17/68 (2013.01); D21H 19/40 (2013.01)

Citation (search report)

[XD] EP 0245553 A2 19871119 - ENGELHARD CORP [US]
[XD] EP 0260945 A1 19880323 - ENGELHARD CORP [US]
[XD] US 4772332 A 19880920 - NEMEH SAAD [US], et al

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0440419 A1 19910807

DOCDB simple family (application)

EP 91300668 A 19910129