13-06-2019 дата публикации
Номер: US20190177545A1
Принадлежит:
A leuco compound comprises an antioxidant moiety covalently bonded to a leuco moiety. A laundry care composition comprises (a) at least one laundry care ingredient and (b) a leuco compound as described above. A method of treating a textile comprises the steps of (a) providing such a laundry care composition; (b) adding the laundry care composition to a liquid medium; (c) placing textile articles in the liquid medium; (d) optionally, rinsing the textile; and (e) drying the textile articles. 1. A leuco compound comprising at least one antioxidant moiety covalently bound to at least one leuco moiety , provided , when the leuco moiety is a triphenylmethane leuco moiety , the leuco moiety comprises a pendant group covalently bound to an phenyl moiety of the triphenylmethane leuco moiety , wherein the pendant group is independently selected from the group consisting of halogens , nitro , alkyl , substituted alkyl , aryl , substituted aryl , alkaryl , substituted alkaryl , —(CH)—O—R , —(CH)—NRR—C(O)R , —C(O)OR , —C(O)O , —C(O)NRR , —OC(O)R , —OC(O)OR , —OC(O)NRR , —S(O)R , —S(O)OR , —S(O)O , —S(O)NRR , —NRC(O)R , —NRC(O)OR , —NRC(O)SR , —NRC(O)NRR , —P(O)R , —P(O)(OR) , —P(O)(OR)O , and —P(O)(O); wherein the index n is an integer from 0 to 4; wherein any two of R , Rand Rattached to the same heteroatom can combine to form a ring of five or more members optionally comprising one or more additional heteroatoms selected from the group consisting of —O— , —NR— , and —S—; and wherein R , R , R , and Rare independently selected from the group consisting of hydrogen , alkyl , substituted alkyl , aryl , substituted aryl , alkaryl , substituted alkaryl , and R; and Ris an organic group composed of one or more organic monomers with said monomer molecular weights ranging from 28 to 500.2. The leuco compound of claim 1 , wherein the leuco moiety is selected from the group consisting of diarylmethane leuco moieties claim 1 , triarylmethane leuco moieties claim 1 , oxazine moieties ...
Подробнее