20-01-2022 дата публикации
Номер: US20220017779A1
Принадлежит:
The composition includes a polysiloxane having at least one of a phosphate or phosphonate group and an amino-functional compound having at least one silane group. The method includes treating the metal surface with a composition including a polysiloxane functionalized with at least one of a phosphate or phosphonate group. The method can include first treating the metal surface with a primer composition including an amino-functional compound having at least one silane group or including an amino-functional compound having at least one silane group in the composition with the polysiloxane. Certain polysiloxanes functionalized with at least one of a phosphate or phosphonate group are also described. 1. (canceled)4. The method of claim 2 , wherein the polysiloxane comprises one or two terminal units represented by formula —R-Q′-(Z); [{'sup': '1', 'each Ris independently alkylene;'}, 'each Q′ is independently a bond or divalent alkylene optionally at least one of interrupted or terminated by at least one ether, thioether, amine, ester, or combination thereof;', {'sub': 2', '2, 'Z is —P(O)(OM)or —O—P(O)(OM), wherein each M is independently hydrogen, a counter cation, or a bond to the surface; and'}, 'z is 1., 'wherein'}5. The method of claim 2 , wherein the polysiloxane has a number average molecular weight of at least 900 grams per mole.6. The method of claim 2 , wherein the composition further comprises an amino-functional compound having at least one silane group claim 2 , wherein amino-functional compound is represented by formula:{'br': None, 'sup': 6', '4', '4', '5, 'sub': 2', 'a', 'b', '3-b, '(R)N—[R—Z′]—R—[Si(X)(R)]'} [{'sup': '4', 'Ris arylene or alkylene optionally interrupted or terminated by arylene;'}, {'sup': '6', 'each Z′ is independently —O— or —NR—;'}, {'sup': '5', 'Ris alkyl, aryl, or alkylenyl interrupted or terminated by aryl;'}, {'sup': 6', '4', '5, 'sub': p', '3-p, 'each Ris independently hydrogen, alkyl, aryl, arylalkylenyl, or —R—[Si(Y)(R)];'}, ' ...
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