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    • 21. 发明授权
    • Highly efficient cement dispersants
    • 高效水泥分散剂
    • US6136950A
    • 2000-10-24
    • US935608
    • 1997-09-23
    • Thomas M. Vickers, Jr.Runhai LuLynn E. BrowerSamy M. ShendyRainer Packe-WirthHong Gao
    • Thomas M. Vickers, Jr.Runhai LuLynn E. BrowerSamy M. ShendyRainer Packe-WirthHong Gao
    • B01F17/52C04B24/28C04B24/32C04B103/32C08G69/48C08G73/02C08G73/10C08G69/00C04B24/12C04B24/24
    • C04B24/32C04B24/28C04B24/287C08G69/48C08G73/02C08G73/0233C08G73/028C08G73/1092C04B2103/0051C04B2103/0052C04B2103/0059C04B2103/302C04B2103/408
    • The invention is directed to a polymer dispersant comprising a substituted polyimide or polyamide backbone, having at least some proportion of oligomeric or polymeric grafted side chains including one of amides, esters, and thioesters, having the general formula: wherein X is at least one of hydrogen, an alkali earth metal ion, an alkaline earth metal ion, ammonium ion, and amine; R is at least one of C.sub.1 to C.sub.6 alkyl(ene) ether and mixtures thereof and C.sub.1 to C.sub.6 alkyl(ene) imine and mixtures thereof; Q is at least one of oxygen, nitrogen, and sulfur; p is a number from 1 to about 300 resulting in at least one of a linear and branched side chain; R.sub.1 is at least one of hydrogen, C.sub.1 to C.sub.20 hydrocarbon, and functionalized hydrocarbon containing at least one of --OH, --COOH, a derivative of --COOH, sulfonic acid, a derivative of sulfonic acid, amine, and epoxy; Y is a hydrophobic hydrocarbon or polyalkylene oxide moiety that functions as a defoamer; m, m', m", n, n', and n" are each independently 0 or an integer between 1 and about 20; Z is a moiety containing at least one of i) a compound containing at least one amine and one acid group, ii) two functional groups capable of incorporating into the backbone selected from the group consisting of dianhydrides, dialdehydes, and di-acid chlorides, and iii) a succinimide residue; and wherein a, b, c and d reflect the mole fraction of each unit wherein the sum of a, b, c and d equal one, wherein a, b, c and d are each a decimal of value greater than or equal to zero and less than one, and at least two of a, b, c and d are greater than zero.
    • 本发明涉及包含取代的聚酰亚胺或聚酰胺主链的聚合物分散剂,其具有至少一定比例的低聚或聚合接枝侧链,包括酰胺,酯和硫酯之一,具有以下通式:其中X是 氢,碱土金属离子,碱土金属离子,铵离子和胺; R是C 1至C 6烷基(烯)醚及其混合物中的至少一种和C 1至C 6烷基(烯)亚胺及其混合物; Q是氧,氮和硫中的至少一种; p是1至约300的数,得到直链和支链侧链中的至少一个; R 1是氢,C 1至C 20烃中的至少一种,和包含-OH,-COOH,-COOH衍生物,磺酸,磺酸衍生物,胺和环氧基中的至少一种的官能化烃; Y是用作消泡剂的疏水性烃或聚环氧烷部分; m,m',m“,n,n'和n”各自独立地为0或1至约20的整数; Z是含有至少一个i)含有至少一个胺和一个酸基团的化合物的部分,ii)能够引入到选自二酸酐,二醛和二酸氯化物的主链中的两个官能团, 和iii)琥珀酰亚胺残基; 并且其中a,b,c和d反映每个单元的摩尔分数,其中a,b,c和d的和等于1,其中a,b,c和d各自是大于或等于零的值的十进制数 并且a,b,c和d中的至少两个大于零。
    • 28. 发明授权
    • Method and system for automated property valuation adjustment
    • 自动化物业估值调整方法与系统
    • US07788186B1
    • 2010-08-31
    • US11077547
    • 2005-03-09
    • Mark Y. AnLinghua PengHong GaoEric L. Rosenblatt
    • Mark Y. AnLinghua PengHong GaoEric L. Rosenblatt
    • G06Q10/00G06Q99/00
    • G06Q30/06G06Q30/0278G06Q50/167
    • A method and system are provided removing systematic bias from property value predictions obtained using automated property valuation models. The systematic bias is removed by deriving monthly adjustment factors that are location-specific. The monthly adjustment factors are obtained by comparing newly obtained purchase transaction data to model-generated valuations of properties in a base valuation database. The newly obtained purchase transactions may be obtained from newly obtained data on recently completed purchase transactions and loan application data on future purchase transactions. The monthly adjustment factors are applied to the property valuations in the base valuation database to obtain adjusted property values having reduced bias and thus improved accuracy.
    • 提供了一种方法和系统,从使用自动化物业估值模型获得的财产价值预测中消除系统偏差。 通过推导出具体位置的月度调整因子来消除系统偏差。 通过将新获得的购买交易数据与基准估价数据库中的属性的模型生成估值进行比较,可以获得月度调整因子。 新获得的购买交易可以从最近获得的关于最近完成的购买交易的数据和关于未来购买交易的贷款申请数据获得。 月度调整因子适用于基准估值数据库中的物业估值,以获得偏差偏小的调整后的财产值,从而提高准确性。