On December 29, 2010, Batchelor, Stephen Norman; Bird, Jayne Michelle; Chen, Honggang; Meng, Sheng; Tao, Qingsheng; Wang, Jinfang published a patent.Formula: C22H23ClN4 The title of the patent was Dye polymers for use in laundry applications. And the patent contained the following:
The present invention provides dye polymers for use in laundry applications. The dye polymers may be used to shade textiles or provide color cues for laundry detergent and fabric conditioners. The dye polymers also provide soil removal benefits. In one aspect the present invention provides a method for obtaining a dye-polymer, the method comprising the step of reacting a polymer with a primary amine of a dye to form the dye-polymer. The polymer has a group for reacting with the primary amine, the group selected from: isocyanate; oxazolone; epoxide; ester, and anhydride, preferably epoxide or anhydride, most preferably anhydride. The experimental process involved the reaction of 3-Amino-7-(diethylamino)-5-phenylphenazin-5-ium chloride(cas: 4569-86-2).Formula: C22H23ClN4
The Article related to dye polymer laundry detergent, Surface Active Agents and Detergents: Dry-Cleaning Solvents and Laundering Detergents (Cleaning Of Finished Garments) and other aspects.Formula: C22H23ClN4
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics