Radiation curable phase change material solutions and shape stable thermoset phase change material gels formed therefrom

    公开(公告)号:US12162978B2

    公开(公告)日:2024-12-10

    申请号:US17187033

    申请日:2021-02-26

    Abstract: Radiation curable phase change solutions (PCM) and said solutions as a thermoset thermal energy gels (a radiation cured polymeric network) has a hydrophobic PCM, a polybutadiene urethane acrylate oligomer soluble in the hydrophobic PCM and present as 7% wt/wt to 25% wt/wt of the gel, a photoinitiator soluble in the hydrophobic PCM and present as 0.01% wt/wt to 0.5% wt/wt of the gel, a mono-functional or di-functional crosslinker soluble in the hydrophobic PCM and present as 0% wt/wt to 10% wt/wt of the gel, and a hydrogenated styrenic block copolymer as a secondary resin as 0% to 20% wt/wt of the gel and optionally a tertiary resin as 0% to 5% wt/wt of the gel, wherein the tertiary resin is a hydrogenated styrenic block copolymer that is different than the secondary resin. The solution or gel is sealed in a container, e.g., a sachet, to form a cold pack.

    MICROCAPSULES HAVING ACRYLIC POLYMERIC SHELLS AND METHODS OF MAKING SAME
    28.
    发明申请
    MICROCAPSULES HAVING ACRYLIC POLYMERIC SHELLS AND METHODS OF MAKING SAME 审中-公开
    具有丙烯酸聚合物的微球及其制备方法

    公开(公告)号:US20150158003A1

    公开(公告)日:2015-06-11

    申请号:US14561473

    申请日:2014-12-05

    Abstract: Microcapsules are described that include a hydrophobic core material within an acrylic polymeric shell that was polymerized from a monomeric blend that includes a mono-functional acrylic monomer as less than 25% by weight of the monomeric blend and a hyperbranched polyester acrylic oligomer as the balance of the monomeric blend, and methods of making the same. The methods include a two-stage polymerization process where the monomeric blend is polymerized with an azo-initiator in a first stage polymerization reaction and is subsequently further polymerized with a water soluble initiator in a second stage polymerization reaction.

    Abstract translation: 描述了包括在丙烯酸聚合物壳内的疏水性芯材料的微胶囊,其由单体共混物聚合,所述单体共混物包含小于单体共混物的25重量%的单官能丙烯酸单体和作为余量的超支化聚酯丙烯酸低聚物 单体混合物及其制备方法。 所述方法包括两阶段聚合方法,其中单体共混物在第一阶段聚合反应中与偶氮引发剂聚合,随后在第二阶段聚合反应中进一步与水溶性引发剂聚合。

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