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    • 5. 发明申请
    • MATERIALS AND OLIGOMERS IN LOW VOC COATINGS
    • 低VOC涂料中的材料和低聚物
    • US20080124532A1
    • 2008-05-29
    • US11840411
    • 2007-08-17
    • GREGORY H. MENOVCIKPAUL J. HARRISSERGIO BALATANNICHOLAS CAIOZZOWALTER H. OHRBOMDONALD H. CAMPBELL
    • GREGORY H. MENOVCIKPAUL J. HARRISSERGIO BALATANNICHOLAS CAIOZZOWALTER H. OHRBOMDONALD H. CAMPBELL
    • B32B7/02C08G18/83C08G63/08C08G63/123
    • C09D5/00C08K5/42C08K5/521C08L33/00C08L61/28C09D167/00C09D175/00Y10T428/24983C08L2666/16
    • A coating composition comprises a thermosetting binder, comprising a crosslinker, a first, hard material having functionality reactive with the crosslinker, and a second, soft material having functionality reactive with the crosslinker. The first, hard material is a polymer, oligomer or compound, the first material having a glass transition temperature of at least 40° C., a number average molecular weight of 2000 or less, and an equivalent weight of 150 to 600 grams per equivalent of functionality reactive with the crosslinker. The second, soft material is a compound that is an amorphous mixture of four or more isomers, near isomers, and/or homologous structures and has from two to four functional groups that form thermally irreversible linkages with the crosslinker under cure conditions, wherein each functional group is separated from each other functional group by at least four atoms. The first, hard material may also have an equivalent weight of about 220 to about 850 grams per equivalent of functionality reactive with the crosslinker or with at least one of the plurality of crosslinkers under cure conditions and be a material, which, if reacted alone with the crosslinker or with the at least one of the plurality of crosslinkers, would form a film having a Tukon hardness of 16 or more, the second, soft material may also have an equivalent weight of 200 to 2000 grams per equivalent of functionality reactive with the crosslinker or with at least one of the plurality of crosslinkers under cure conditions and be a material, which, if reacted alone with the crosslinker or with the at least one of the plurality of crosslinkers, would form a film having a Tukon hardness of less than 4, while the coating composition forms a cured film having a Tukon hardness of from about 7 to about 12.
    • 涂料组合物包含热固性粘合剂,其包含交联剂,具有与交联剂反应的官能团的第一硬质材料,以及具有与交联剂反应的官能团的第二软质材料。 第一种硬质材料是聚合物,低聚物或化合物,第一种材料的玻璃化转变温度至少为40℃,数均分子量为2000以下,当量为150〜600克/当量 的功能与交联剂反应。 第二种软材料是四种或更多种异构体,近似异构体和/或同源结构的无定形混合物,并且具有2-4个在固化条件下与交联剂形成热不可逆连接的官能团的化合物,其中各功能性 基团通过至少四个原子彼此相互分离。 第一硬质材料还可以具有约220至约850克当量的与交联剂反应的官能度或与固化条件下的多种交联剂中的至少一种交联剂的当量,并且是如果与 交联剂或多个交联剂中的至少一种交联剂将形成具有16或更高的Tukon硬度的膜,第二软质材料也可以具有每当量的功能与200wt% 交联剂或与固化条件下的多种交联剂中的至少一种交联剂,并且是一种材料,如果单独与交联剂反应或与多种交联剂中的至少一种交联剂反应,将形成的Tukon硬度小于 4,而涂料组合物形成具有约7至约12的Tukon硬度的固化膜。