Global patent index - EP 1036033 A1

EP 1036033 A1 2000-09-20 - CATIONIC LAYER COMPOUNDS, METHOD FOR PRODUCING SAID COMPOUNDS AND THEIR USE

Title (en)

CATIONIC LAYER COMPOUNDS, METHOD FOR PRODUCING SAID COMPOUNDS AND THEIR USE

Title (de)

KATIONISCHE SCHICHTVERBINDUNGEN, VERFAHREN ZUR HERSTELLUNG DIESER VERBINDUNGEN UND IHRE VERWENDUNG

Title (fr)

COMPOSES LAMELLAIRES CATIONIQUES, PROCEDE PERMETTANT DE LES PREPARER ET LEUR UTILISATION

Publication

EP 1036033 A1 (DE)

Application

EP 98959886 A

Priority

  • DE 19753758 A
  • EP 9807612 W

Abstract (en)

[origin: DE19753758A1] The invention relates to cationic layer compounds which can be obtained by subjecting layer compounds of general formula (I) [EeZzDdVv(OH<->)x](A<n->)a.qH2O, wherein E is a monovalent cation from the group of the alkaline metals, e is a number from 0 to 2, Z is a bivalent metal cation, z is a number from 0 to 6, D is a trivalent metal cation, d is a number from 0 to 3, V is a tetravalent metal cation, v is a number from 0 to 1, (A<n->) is an acid anion of charge n-, n being a whole number from 1 to 3, and q is a number from 1 to 10, with the condition that x > a and e + 2z + 3d + 4v = x + na; to crystallisation (i) and re-treating the material obtained (ii). The re-treatment consists of steam-drying at temperatures of 200 to 260 DEG C and lasts for 3 to 6 hours. The steam should be applied either directly or in the form of an inert carrier gas and should be guided continuously over the material to be dried in a quantity of 0.001 to 10 mol. water per hour and kilogram of the crystalline layer lattice compound obtained in stage (i). The inventive compounds are particularly suitable for stabilising halogen-containing plastics against thermal or photochemical decomposition and can therefore be used as stabilisers for the same.

IPC 1-7 (main, further and additional classification)

C01B 13/14; C01F 7/00; C08K 3/22; C08K 3/26

IPC 8 full level (invention and additional information)

C01F 7/00 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01); C08L 101/04 (2006.01)

CPC (invention and additional information)

C01F 7/005 (2013.01)

Citation (search report)

See references of WO 9929622A1

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

DE 19753758 A1 19990610; EP 1036033 A1 20000920; JP 2001525312 A 20011211; US 6362261 B1 20020326; WO 9929622 A1 19990617

INPADOC legal status

2004-10-27 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040228

2002-04-24 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: COGNIS DEUTSCHLAND GMBH & CO. KG

- Ref Legal Event Code: RAP1

2001-04-11 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010227

2000-09-20 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000525

2000-09-20 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT NL