High strength wet webs for the production of paper and process for producing paper making fiber webs having wet web strength - Patent 0289823

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(11)

EP 0 289 823 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	04.10.1989 Bulletin 1989/40

(43)	Date of publication A2:
	09.11.1988 Bulletin 1988/45

(21)	Application number: 88105934.9

(22)	Date of filing: 14.04.1988

(51)	International Patent Classification (IPC)⁴: D21H 3/38

(84)	Designated Contracting States:
	AT CH DE ES FR GB IT LI NL SE

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Priority:

05.05.1987 US 46209

(71)	Applicant: AMERICAN CYANAMID COMPANY
	Stamford Connecticut 06904-0060 (US)

(72)	Inventors:
	Fu, Yun-Lung Milford Connecticut (US) Huang, Sun-Yi Stamford Connecticut (US) Dexter, Robin William Lawrenceville New Jersey 08648 (US)

(74)	Representative: Wächtershäuser, Günter, Prof. Dr.
	Patentanwalt, Tal 29 80331 München 80331 München (DE)

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References cited: :

(54)	High strength wet webs for the production of paper and process for producing paper making fiber webs having wet web strength

(57) Papermaking fibers treated with N-chloroamide polymers and formed into wet webs have enhanced strength while wet and facilitate the papermaking process.