Composition for Odor Suppression
    11.
    发明申请

    公开(公告)号:US20220169839A1

    公开(公告)日:2022-06-02

    申请号:US17434198

    申请日:2020-02-18

    Abstract: The present disclosure provides a composition. In an embodiment, the composition includes an olefin-based polymer and from 0.15 wt % to 15 wt % of an odor suppressant. The odor suppressant includes (i) from 0.05 wt % to 2 wt % of a metal oxide having a band gap greater than 5.0 electron volts (eV), and (ii) from 0.1 wt % to 13 wt % of an acid copolymer. The ratio of metal oxide to acid copolymer is from 1:20 to 1:1. Weight percents are based on the total weight of the composition.

    FUSED FILAMENT FABRICATION MANUFACTURING METHOD AND POLYMER BLEND USED THEREIN

    公开(公告)号:US20210299948A1

    公开(公告)日:2021-09-30

    申请号:US17264737

    申请日:2019-07-12

    Abstract: A method of fused filament fabrication (FFF) additive manufacturing comprises employing a thermoplastic blend comprised of high density polyethylene and a second thermoplastic polymer, wherein the second polymer is a low density polyethylene (LDPE), functionalized polyolefin or combination thereof and the amount of high density polyethylene to the amount of second thermoplastic polymer by weight is a ratio from 1.5/1 to 20/1. LDPE means a polyethylene that have been radically polymerized at high pressure. The method allows for the additive manufacturing article that retains the desirable mechanical properties of HDPE without experiencing the problems inherent in FFF printing of HDPE or use of solid fillers. In a particular embodiment, the additive manufactured article has a continuous phase and the second thermoplastic polymer is present as a discontinuous phase within the additive article manufactured article and the filament used to make the article.

    STYRENE-CARBOXYLIC ACID COPOLYMER FOAM
    19.
    发明申请
    STYRENE-CARBOXYLIC ACID COPOLYMER FOAM 审中-公开
    苯乙烯 - 羧酸共聚物泡沫

    公开(公告)号:US20160237233A1

    公开(公告)日:2016-08-18

    申请号:US15023742

    申请日:2014-10-29

    Abstract: Prepare a polymer foam by expanding a foamable polymer composition of a copolymer component and a blowing agent where the copolymer component accounts for more than 50 weight-percent of the total polymer weight in the foamable polymer composition and is one or more than one styrene-carboxylic acid copolymer having an acid number of 20 or higher while the blowing agent comprises a fluorinated blowing agent, less than 70 weight-percent of which is 1,1,2,2-tetrafluoroethane and less than five weight-percent is carbon dioxide and C3-C5 hydrocarbons make up less than 30 mole-percent of the blowing agent; expand the foamable polymer composition into a polymer foam having an average cell size of less than 0.5 millimeters where the copolymer composition is a continuous phase in the polymer foam.

    Abstract translation: 通过使共聚物组分和发泡剂的可发泡聚合物组合物膨胀来制备聚合物泡沫,其中共聚物组分占可发泡聚合物组合物中总聚合物重量的50重量%以上,并且是一种或多种苯乙烯 - 羧酸 酸性共聚物的酸值为20以上,而发泡剂为含氟发泡剂,小于70重量%为1,1,2,2-四氟乙烷且少于5重量%为二氧化碳和C3 -C5烃类占发泡剂的30%以下; 将可发泡聚合物组合物膨胀成平均泡孔尺寸小于0.5毫米的聚合物泡沫体,其中共聚物组合物是聚合物泡沫体中的连续相。

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