The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2004
Filed:
Apr. 05, 2001
Peter Stewart Allan, Uxbridge, GB;
Michael Andrew Browne, Wirral, GB;
Elfriede Maria Langeveld, Wirral, GB;
Paul Lloyd, Wirral, GB;
Reginald Manley, Wirral, GB;
Paul Reissen Rennie, Wirral, GB;
Frederick Edmund Stocker, Wirral, GB;
Karnik Tarverdi, Uxbridge, GB;
Jacqueline Marie Thorpe, Wirral, GB;
Unilever Home & Personal Care USA, division of Conopco, Inc., Chicago, IL (US);
Abstract
A deodorant or antiperspirant soft solid composition is filled into dispensing containers by injection moulding, i.e. under pressure, preferably in the vicinity of its normal setting temperature. The deodorant or antiperspirant composition is preferably continuously produced in a screw extruder, especially a twin screw extruder, controlled to deliver the composition in a suitably viscous state under low shear and particularly for formulations in which a particulate antiperspirant is suspended in a fluid carrier. The pressure in the injection head at the point of injection is greater than 120 kPa and in many instances from 800 to 2000 kPa. The combined process offers benefits for controlled fill of dispensing containers, particularly for formulations incorporating sensitive ingredients and offers tolerance in composition temperature at the time of fill.