ES2059702T3 - Politioureas, procedimiento para su fabricacion y empleo de estas politioureas para evitar o reducir la formacion de costras en reactores. - Google Patents

Politioureas, procedimiento para su fabricacion y empleo de estas politioureas para evitar o reducir la formacion de costras en reactores.

Info

Publication number
ES2059702T3
ES2059702T3 ES89201197T ES89201197T ES2059702T3 ES 2059702 T3 ES2059702 T3 ES 2059702T3 ES 89201197 T ES89201197 T ES 89201197T ES 89201197 T ES89201197 T ES 89201197T ES 2059702 T3 ES2059702 T3 ES 2059702T3
Authority
ES
Spain
Prior art keywords
polytioureas
politioureas
crust
reactors
procedure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES89201197T
Other languages
English (en)
Inventor
Rene Walraevens
Jean-Marc Coisne
Michel Strebelle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solvay SA filed Critical Solvay SA
Application granted granted Critical
Publication of ES2059702T3 publication Critical patent/ES2059702T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
    • C08F2/004—Scale prevention in a polymerisation reactor or its auxiliary parts by a prior coating on the reactor walls
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G71/00—Macromolecular compounds obtained by reactions forming a ureide or urethane link, otherwise, than from isocyanate radicals in the main chain of the macromolecule
    • C08G71/02—Polyureas

Abstract

POLITIOUREAS DE F+ORMULA (A), ENH - R - NH - CS - $N EN LA QUE R ES UN AGRUPAMIENTO SUSTITUIDO POR AL MENOS UN AGRUPAMIENTO CARBOXILO Y N ES UN NUMERO ENTERO COMPRENDIDO ENTRE 2 Y 300.
ES89201197T 1988-05-24 1989-05-12 Politioureas, procedimiento para su fabricacion y empleo de estas politioureas para evitar o reducir la formacion de costras en reactores. Expired - Lifetime ES2059702T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8807059A FR2631967B1 (fr) 1988-05-24 1988-05-24 Polythiourees, procede pour leur fabrication et utilisation de ces polythiourees pour eviter ou reduire le croutage des reacteurs de polymerisation

Publications (1)

Publication Number Publication Date
ES2059702T3 true ES2059702T3 (es) 1994-11-16

Family

ID=9366677

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89201197T Expired - Lifetime ES2059702T3 (es) 1988-05-24 1989-05-12 Politioureas, procedimiento para su fabricacion y empleo de estas politioureas para evitar o reducir la formacion de costras en reactores.

Country Status (6)

Country Link
EP (1) EP0343706B1 (es)
AT (1) ATE93247T1 (es)
BR (1) BR8902385A (es)
DE (1) DE68908474T2 (es)
ES (1) ES2059702T3 (es)
FR (1) FR2631967B1 (es)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046310B (de) * 1955-02-01 1958-12-11 Ciba Geigy Verfahren zur Herstellung von hochmolekularen sulfonsaeuregruppenhaltigen Polythioharnstoffen
JPS5869203A (ja) * 1981-10-20 1983-04-25 Shin Etsu Chem Co Ltd ビニル系単量体の重合方法
US4613483A (en) * 1984-11-07 1986-09-23 The B. F. Goodrich Company Coated polymerization vessels and methods for use thereof

Also Published As

Publication number Publication date
ATE93247T1 (de) 1993-09-15
BR8902385A (pt) 1990-01-16
EP0343706A1 (fr) 1989-11-29
DE68908474D1 (de) 1993-09-23
DE68908474T2 (de) 1994-03-03
EP0343706B1 (fr) 1993-08-18
FR2631967B1 (fr) 1990-09-07
FR2631967A1 (fr) 1989-12-01

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