Global Patent Index - EP 0629741 B1

EP 0629741 B1 20010816 - Use of fine paper sized with alkyl ketene multimers in high speed precision converting or reprographic operations

Title (en)

Use of fine paper sized with alkyl ketene multimers in high speed precision converting or reprographic operations

Title (de)

Verwendung von mit Alkylketenmultimeren geleimtem Feinpapier in der Hochgeschwindigkeitspräzisionsumarbeitung von Papier oder in Hochgeschwindigkeitsreprographieverfahren

Title (fr)

Utilisation de papier fin collé de multimères d'alkyle cétène pour des operations de transformation de précision ou de reproduction à haute vitesse

Publication

EP 0629741 B1 20010816 (EN)

Application

EP 94304136 A 19940608

Priority

GB 9311944 A 19930610

Abstract (en)

[origin: EP0629741A1] Disclosed is a process for making fine paper that is sized under alkaline conditions with a 2-oxetanone sizing agent. The sizing agent is a mixture of alkyl ketene dimer and 2-oxetanone multimers of various molecular weights, at least 50% by weight of the 2-oxetanone compounds having at least two 2-oxetanone rings. The paper can be in the form of continuous forms bond paper, adding machine paper, and reprographic paper and can also be converted into envelopes. The paper exhibits levels of sizing comparable to those obtained with current alkyl ketene dimer and alkenyl succinic anhydride sizes, and gives improved performance in high speed converting and reprographic machines.

IPC 1-7

D21H 17/17

IPC 8 full level

G03G 7/00 (2006.01); D21H 17/17 (2006.01); D21H 17/46 (2006.01); D21H 21/16 (2006.01)

CPC (source: EP KR)

B41M 5/0035 (2013.01 - KR); B65D 27/00 (2013.01 - KR); D21H 17/17 (2013.01 - EP); D21H 21/16 (2013.01 - KR); D21H 27/16 (2013.01 - KR); D21H 21/16 (2013.01 - EP)

Citation (examination)

Technical Bulletin 145S, "Specifications and Characteristics of Emery Oleochemicals", Henkel Corporation, Emery Group, May 1993

Designated contracting state (EPC)

AT DE ES FR GB IT NL PT SE

DOCDB simple family (publication)

EP 0629741 A1 19941221; EP 0629741 B1 20010816; AT E204347 T1 20010915; AU 6465094 A 19941215; AU 671212 B2 19960815; AU 671212 C 20010719; BR 9402372 A 19950314; CA 2117318 A1 19941211; CA 2117318 C 20010605; DE 69427939 D1 20010920; DE 69427939 T2 20011129; ES 2160112 T3 20011101; FI 942685 A0 19940607; FI 942685 A 19941211; GB 9311944 D0 19930728; JP H0797791 A 19950411; KR 950001019 A 19950103; PT 629741 E 20020228; TW 279913 B 19960701; ZA 944111 B 19950202

DOCDB simple family (application)

EP 94304136 A 19940608; AT 94304136 T 19940608; AU 6465094 A 19940609; BR 9402372 A 19940610; CA 2117318 A 19940609; DE 69427939 T 19940608; ES 94304136 T 19940608; FI 942685 A 19940607; GB 9311944 A 19930610; JP 12912294 A 19940610; KR 19940013070 A 19940610; PT 94304136 T 19940608; TW 83105460 A 19940616; ZA 944111 A 19940610