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:
Nov. 12, 2013
Filed:
Jan. 07, 2011
Ugo Pfeiffer, Albizzate, IT;
Mauro Tenconi, Albizzate, IT;
Eva Baldaro, Albizzate, IT;
Valentina Langella, Albizzate, IT;
Giovanni Floridi, Albizzate, IT;
Giuseppe LI Bassi, Albizzate, IT;
Ugo Pfeiffer, Albizzate, IT;
Mauro Tenconi, Albizzate, IT;
Eva Baldaro, Albizzate, IT;
Valentina Langella, Albizzate, IT;
Giovanni Floridi, Albizzate, IT;
Giuseppe Li Bassi, Albizzate, IT;
Lamberti SpA, Albizzate, IT;
Abstract
A glyoxal and boron free purified cationic polygalactomannan may be prepared by reacting a polygalactomannan flour, a nonionically derivatized polygalactomannan flour, or a mixture thereof, with a cationising reagent, adjusting the pH to be from about 4 to about 6; cross-linking the cationic with glyoxal, and filtering and water washing the cationic polygalactomannan to produce a glyoxalated purified cationic polygalactomannan containing not more than 70% by weight of water. In some cases it may be desirable to introduce a buffering agent to the glyoxalated purified cationic polygalactomannan to regulate the pH to from 8.0 to about 9.5, when measured at 1% (dry matter) in water. In other cases, it may be desirable to remove water to produce glyoxal free purified cationic polygalactomannan in powder form. Such compounds are particularly useful in personal care products.