12-03-2020 дата публикации
Номер: US20200079039A1
Disclosed herein are kits for use in adding degradable foam to a tire, methods for preparing a degradable foam-containing tire, tires containing degradable foam, and methods for degrading the degradable foam in tires containing degradable foam. The degradable foam comprises a combination of (i) at least one di- or polyisocyanate, (ii) at least one polysiloxane diol, at least one polysiloxane diamine, or a combination thereof, and (iii) optionally at least one polyol. 117-. (canceled)19. The kit according to wherein at least one of the following is met:a. the first component further comprises at least one oil, orb. the kit further comprises at least one foaming agent either as part of the first or second component or in a container separate from the containers of the first and second components.20. The kit according to claim 18 , wherein at least one of the following is met:a. the at least one di- or polyisocyanate is selected from aliphatic, aromatic, araliphatic, and cycloaliphatic, orb. the at least one polyol is present and is selected from alkylene polyols, arylene polyols, polyether polyols, polyester polyols, polycarbonate polyols, polybutadiene polyols, polyamines, polyether polyamines, hydrocarbon polyols, and combinations thereof.21. The kit according to claim 18 , further comprising a third component comprising either:a. a source of fluoride anion useful for degrading a foam formed from the first and second components; orb. an organic acid having a pKa of less than 2, an inorganic acid having a pKa of less than 2, or a combination thereof and optionally a solvent for the acid.22. The kit according to claim 18 , wherein the second component comprises at least one of:{'sup': 5', '1', '3', '2', '4', '6', '1', '2', '3', '4', '5', '6, 'sub': m', 'n', 'o, 'a. at least one polysiloxane diol having the formula: HO—(R)—Si(R)(R)—[O—Si(R)(R)]—(R)—OH wherein R, R, R, R, R, and Rare the same or different and are independently selected from optionally substituted with ...
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