Dual cure polythioether
    46.
    发明授权

    公开(公告)号:US11319440B2

    公开(公告)日:2022-05-03

    申请号:US16946253

    申请日:2020-06-12

    Abstract: Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N′, N″, N″-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.

    ORAL ARTICLES AND METHODS OF USE
    49.
    发明申请

    公开(公告)号:US20220062157A1

    公开(公告)日:2022-03-03

    申请号:US17419397

    申请日:2019-12-26

    Abstract: Articles that include from 20 wt-% to 45 wt-% of one or more plant based oils based on the total weight of the article; from 50 wt-% to 70 wt-% of one or more polymer film formers based on the total weight of the article; and from 5 wt-% to 15 wt-% of one or more humectants based on the total weight of the article. Further articles comprises this combination of oil, film former and humectant as a first layer adjacent to which a second layer comprises a mucoadhesive polymer. The articles may be used to prevent formation or maintenance of biofilm in an oral tissue, affect hydration loss in an oral tissue, affect lubricity or lubriciousness in an oral tissue or treat xerostomia or dry mouth. Preferred polymer film formers include pullulan, xanthan gum, HP guar, ethyl cellulose and carrageenan.

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