Global patent index - EP 0970173 A1

EP 0970173 A1 2000-01-12 - EFFERVESCENT BLEACH COMPOSITIONS

Title (en)

EFFERVESCENT BLEACH COMPOSITIONS

Title (de)

BRAUSENDE BLEICHMITTELZUSAMMENSETZUNGEN

Title (fr)

COMPOSITIONS DE BLANCHIMENT EFFERVESCENTES

Publication

EP 0970173 A1 (EN)

Application

EP 97946470 A

Priority

  • GB 9622845 A
  • US 9719954 W

Abstract (en)

[origin: WO9820096A1] The invention relates to solid, effervescent bleach compositions comprising: (i) a bleach activator; (ii) an oxygen effervescence generator comprising a persulphate salt and a perborate salt, wherein the weight ratio of the persulphate salt to the perborate salt is in the range from about 0.8:1 to about 5:1; and (iii) a carbon dioxide efferverscence generator comprising a bicarbonate salt and an acid; wherein the weight ratio of the perborate salt to the bicarbonate salt is in the range from about 2:1 to about 20:1. The compositions provide excellent de-stain activity with improved effervescence and/or tablet disintegration. They are especially suitable in tablet form as denture cleansers.

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

C11D 3/10; C11D 3/39; C11D 3/395; C11D 7/54

IPC 8 full level (invention and additional information)

C11D 3/00 (2006.01); C11D 3/10 (2006.01); C11D 3/37 (2006.01); C11D 3/39 (2006.01); C11D 17/00 (2006.01)

CPC (invention and additional information)

C11D 3/3738 (2013.01); C11D 3/0052 (2013.01); C11D 3/10 (2013.01); C11D 3/3907 (2013.01); C11D 17/0073 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

EPO simple patent family

WO 9820096 A1 19980514; CA 2270422 A1 19980514; EP 0970173 A1 20000112; EP 0970173 A4 20000712; GB 9622845 D0 19970108; HU 9904236 A2 20000428; HU 9904236 A3 20011128; TR 9900935 T2 19990721

INPADOC legal status

2001-07-25 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010124

2000-11-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000913

2000-07-12 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000529

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

2000-07-12 [RIC1] CLASSIFICATION (CORRECTION)

- Free Format Text: 7C 11D 3/39 A, 7C 11D 3/00 B, 7C 11D 3/10 B, 7C 11D 7/54 B, 7A 61K 7/30 B

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990604

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE