Global Patent Index - EP 0006390 B1

EP 0006390 B1 19881130 - PROCESS OF FORMING A FIBROUS WEB BY THE PAPERMAKING TECHNIQUE IN ORDER TO IMPROVE THE BINDING AND RETENTION, WEB OBTAINED BY THIS PROCESS AND ITS USE AS A SUBSTITUTE MATERIAL FOR ASBESTOS PRODUCTS AND AS A PRINTING OR WRITING SUPPORT

Title (en)

PROCESS OF FORMING A FIBROUS WEB BY THE PAPERMAKING TECHNIQUE IN ORDER TO IMPROVE THE BINDING AND RETENTION, WEB OBTAINED BY THIS PROCESS AND ITS USE AS A SUBSTITUTE MATERIAL FOR ASBESTOS PRODUCTS AND AS A PRINTING OR WRITING SUPPORT

Publication

EP 0006390 B1 19881130 (FR)

Application

EP 79400405 A 19790619

Priority

  • FR 7818447 A 19780620
  • FR 7901833 A 19790124
  • FR 7910386 A 19790424

Abstract (en)

[origin: ES481726A1] The present invention relates to a method for preparing a fibrous sheet by paper-making means, according to which the flocculating agent is introduced in the aqueous suspension containing the basic mixture chosen from the group constituted by (i) the fibers alone when there is no non-binding mineral filler, and (ii) the fibers and the non-binding mineral filler when said latter is present, before and after the introduction of the organic binder. It also concerns, as new industrial product, the sheet obtained according to this method. Finally, it relates to the application of said sheet particularly in the domain of coverings (as a replacement for asbestos) and printing-writing supports.

IPC 1-7

D21D 3/00; D21H 5/00; B41M 5/00; C04B 28/00

IPC 8 full level

D21H 17/67 (2006.01); D21H 21/34 (2006.01)

CPC (source: EP US)

D21H 17/67 (2013.01 - EP US); D21H 21/34 (2013.01 - EP US)

Citation (examination)

  • GB 1338759 A 19731128 - INT SYNTHETIC RUBBER
  • JP S458164 B1
  • US 3184373 A 19650518 - ARLEDTER HANNS F
  • CASEY "Pulp and Paper" 1952 Interscience Pub.,New York Chapitre IX "Filling and loading" p. 469, 470, 472
  • PULP AND PAPER MANUFACTURE ; vol. 3; Mc Graw Hill.1953 p. 274
  • G. MARTIN "Le Papier" Coll. Que sais-je ? 3e éd. 1976 Presses Universitaires de France. p. 84, 85
  • PAPIER CARTON et CELLULOSE, Nov. 1980, p. 50

Designated contracting state (EPC)

AT BE CH DE GB IT LU NL SE

DOCDB simple family (publication)

EP 0006390 A1 19800109; EP 0006390 B1 19881130; BR 7903893 A 19800220; CA 1135460 A 19821116; DE 2967683 D1 19890105; DK 156589 B 19890911; DK 156589 C 19900205; DK 256479 A 19791221; ES 481726 A1 19800616; FI 65294 B 19831230; FI 65294 C 19840410; FI 791966 A 19791221; GR 65316 B 19800802; PT 69780 A 19790701; US 4487657 A 19841211

DOCDB simple family (application)

EP 79400405 A 19790619; BR 7903893 A 19790620; CA 330076 A 19790619; DE 2967683 T 19790619; DK 256479 A 19790619; ES 481726 A 19790620; FI 791966 A 19790620; GR 790159365 A 19790616; PT 6978079 A 19790620; US 27985081 A 19810702