QUINONE METHIDE AND AMMONIUM SALT ANTIPOLYMERANT COMPOSITION AND METHOD

    公开(公告)号:US20210108141A1

    公开(公告)日:2021-04-15

    申请号:US17067164

    申请日:2020-10-09

    Inventor: Jonathan Masere

    Abstract: Described are compositions and methods for inhibiting polymerization of a monomer (e.g., styrene) composition a quinone methide polymerization retarder and an ammonium salt. In a mixture, the ammonium salt improves the efficacy of the quinone methide polymerization retarder and provides greater antipolymerant activity. In turn, the mixture reduces or prevents apparatus fouling and improves the purity of monomer streams.

    USE OF QUINONE METHIDES AS ANTIPOLYMERANTS FOR VINYLIC MONOMERS
    4.
    发明申请
    USE OF QUINONE METHIDES AS ANTIPOLYMERANTS FOR VINYLIC MONOMERS 有权
    喹诺酮类作为乙烯基单体的抗微生物剂使用

    公开(公告)号:US20160289147A1

    公开(公告)日:2016-10-06

    申请号:US15085523

    申请日:2016-03-30

    CPC classification number: C07C7/20 C09K15/08 C07C15/46

    Abstract: The present invention generally relates to compounds and methods for inhibiting the radical polymerization of unsaturated compounds, particularly vinyl monomers. More particularly, it relates to the use of cinnamyl quinone methides to inhibit the polymerization of unsaturated hydrocarbon compounds (e.g., vinyl monomers) soluble in organic solvents, particularly hydrocarbon streams.

    Abstract translation: 本发明一般涉及抑制不饱和化合物,特别是乙烯基单体的自由基聚合的化合物和方法。 更具体地说,本发明涉及肉桂基醌甲基化物抑制可溶于有机溶剂,特别是烃流中的不饱和烃化合物(例如乙烯基单体)聚合的用途。

    USE OF STABLE LIPOPHILIC HYDROXYLAMINE COMPOUNDS FOR INHIBITING POLYMERIZATION OF VINYL MONOMERS
    5.
    发明申请
    USE OF STABLE LIPOPHILIC HYDROXYLAMINE COMPOUNDS FOR INHIBITING POLYMERIZATION OF VINYL MONOMERS 有权
    使用稳定的二氯羟胺化合物抑制乙烯基单体的聚合

    公开(公告)号:US20160272586A1

    公开(公告)日:2016-09-22

    申请号:US15072780

    申请日:2016-03-17

    Abstract: The present invention generally relates to compounds and methods for inhibiting the radical polymerization of unsaturated compounds, particularly vinyl monomers. More particularly, it relates to the use of stable hydroxyl amines to inhibit the polymerization of unsaturated compounds (e.g., vinyl monomers) wherein said stable hydroxylamine is soluble in organic solvents, particularly hydrocarbon solvents consisting of unsaturated and, therefore, polymerizable constituents.

    Abstract translation: 本发明一般涉及抑制不饱和化合物,特别是乙烯基单体的自由基聚合的化合物和方法。 更具体地说,本发明涉及使用稳定的羟基胺来抑制不饱和化合物(例如乙烯基单体)的聚合,其中所述稳定的羟胺可溶于有机溶剂,特别是由不饱和烃和因此可聚合成分组成的烃溶剂。

    OXYGENATED AMINOPHENOL COMPOUNDS AND METHODS FOR PREVENTING MONOMER POLYMERIZATION

    公开(公告)号:US20200339880A1

    公开(公告)日:2020-10-29

    申请号:US16860954

    申请日:2020-04-28

    Abstract: Described are compounds, compositions, and methods that include a nitrogen- and oxygen-containing aromatic compound, such as an aminophenol-based compound, which can be used for inhibiting polymerization of a monomer (e.g., styrene) composition. The compound includes a tertiary amine group wherein the nitrogen is attached to carbon-containing groups, and at least one of oxygen atom separated from the nitrogen by one or more carbon atoms. The antipolymerant can provide excellent antipolymerant activity in a monomer-containing composition.

    Amino-quinone antipolymerants and methods of using

    公开(公告)号:US11312793B2

    公开(公告)日:2022-04-26

    申请号:US16580653

    申请日:2019-09-24

    Inventor: Jonathan Masere

    Abstract: Described are methods and composition for inhibiting polymerization of a monomer (e.g., styrene) composition using an aminated quinone antipolymerant, such as an aminated benzoquinone or aminated naphthoquinone antipolymerant having one or more secondary or tertiary amine group(s). The aminated quinone antipolymerant can be used with little or no nitroxyl group containing antipolymerant yet still provide excellent antipolymerant activity in a monomer-containing composition.

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