会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • Modified aminoplast crosslinkers and powder coating compositions containing such crosslinkers
    • 含有这种交联剂的改性氨基塑料交联剂和粉末涂料组合物
    • US20020132935A1
    • 2002-09-19
    • US09918848
    • 2001-07-31
    • Ronald R. AmbroseAnthony M. ChasserShengkui HuJackie L. Smith
    • C08L061/32
    • C08G14/10C08G14/06C08G14/12C08G59/4007C08K5/357C08L61/32C08L61/34C09D5/033C09D161/32C09D161/34Y10T428/31511Y10T428/31551Y10T428/31855
    • A crosslinking agent having reactive benzoxazine groups is provided. The crosslinking agent is an ungelled reaction product of aminoplast resin, a polyhydric aromatic compound, and at least one compound having active hydrogen groups reactive with aminoplast resin which is selected from at least one of: (i) compounds having the structure (I): 1 where X is aromatic; R1, R2, and R3 each independently represents H, (cyclo)alkyl having from 1 to 12 carbon atoms, aryl, alkaryl, aralkyl, or an active hydrogen-containing group; (ii) compounds having structure (II) or (III): 2 where Rnull and Rnull each independently represents an aromatic group or an alkyl group having 1 to 12 carbon atoms; and (iii) compounds different from (i) and (ii) and having a melting point of at least 80null C. Curable powder coating composition and multilayer composite coating compositions are also provided, as well as coated substrates.
    • 提供了具有反应性苯并恶嗪基团的交联剂。 交联剂是氨基塑料树脂,多元芳族化合物和至少一种具有与氨基塑料树脂反应的活性氢基团的化合物的非凝胶化反应产物,其选自以下至少一种:(i)具有结构(I)的化合物: 其中X是芳香族; R 1,R 2和R 3各自独立地表示具有1至12个碳原子的H((环))烷基,芳基,烷芳基,芳烷基或含活性氢基团; (ii)具有结构(II)或(III)的化合物:其中R'和R“各自独立地表示芳族基团或具有1至12个碳原子的烷基; 和(iii)不同于(i)和(ii)的化合物,并具有至少80℃的熔点。也提供可固化的粉末涂料组合物和多层复合涂料组合物以及涂覆的基材。
    • 6. 发明申请
    • Polymer composition for curing novolac resins
    • 用于固化酚醛清漆树脂的聚合物组合物
    • US20020111425A1
    • 2002-08-15
    • US09498288
    • 2000-02-04
    • Philip A WaitkusTheodore N Morrison
    • C08K003/00
    • C08G14/06C08G8/10C08G8/28C08L61/34C09D161/34C09J161/34
    • A polymer composition that can be used to cure a novolac resin at a lower temperature than conventional novolac curing agents and with reduced emission of volatile compounds is disclosed. The novolac curing agent polymer composition is prepared by mixing and reacting in aqueous solution a phenolic monomer and an aldehyde in the presence of a basic catalyst to form an intermediate resin, and reacting the intermediate resin with an amine to form the polymer composition. The aldehyde to phenolic monomer molar ratio in the reaction should be at least about 1.0:1, and preferably is at least about 2.0:1. The preferred amine is hexamethylenetetramine, and it is preferred that the hexamethylenetetramine to phenolic monomer molar ratio is at least about 0.12:1. In a preferred version, the aldehyde is formaldehyde, and the phenolic monomer is selected from the group consisting of phenol, substituted phenols, and mixtures thereof, with phenol itself being the most preferred phenolic monomer. The polymer is particularly advantageous in that the reaction temperature is lowered compared to other conventional curing agents, the unreacted phenolic monomer in the polymer composition may be adjusted to levels less than about 0.5 weight percent, and the unreacted aldehyde in the polymer composition may be adjusted to levels less than about 0.1 weight percent. As a result, the polymer releases minimal volatile compounds when used to cure novolac resins, and unlike conventional resole curing agents, has an indefinite shelf life in both the pure form and when blended with a novolac resins.
    • 公开了一种聚合物组合物,其可用于在比常规酚醛清漆固化剂更低的温度下固化酚醛清漆树脂并且减少挥发性化合物的排放。 酚醛清漆固化剂聚合物组合物通过在碱性催化剂存在下,在水性溶液中混合和反应酚醛单体和醛来制备中间体树脂,并使中间体树脂与胺反应形成聚合物组合物。 反应中醛与酚单体的摩尔比应为至少约1.0:1,优选为至少约2.0:1。 优选的胺是六亚甲基四胺,并且优选六亚甲基四胺与酚单体摩尔比为至少约0.12:1。 在优选的形式中,醛是甲醛,酚类单体选自苯酚,取代的苯酚及其混合物,苯酚本身是最优选的酚类单体。 聚合物特别有利的是,与其它常规固化剂相比,反应温度降低,聚合物组合物中未反应的酚单体可以调节至低于约0.5重量%,并且可以调节聚合物组合物中未反应的醛 水平低于约0.1重量%。 结果,当用于固化酚醛清漆树脂时,聚合物释放最小的挥发性化合物,并且与常规的固化剂不同,在纯形式和与酚醛清漆树脂共混时具有无限期的保质期。