PROCESS FOR PREPARING CELLULOSE ACETOACETATE ALKANOATES
    241.
    发明申请
    PROCESS FOR PREPARING CELLULOSE ACETOACETATE ALKANOATES 审中-公开
    制备纤维素乙酰丙酸烷基酯的方法

    公开(公告)号:WO1997040074A1

    公开(公告)日:1997-10-30

    申请号:PCT/US1997006857

    申请日:1997-04-23

    CPC classification number: C08B3/16

    Abstract: The present invention relates to a process for preparing a substituted cellulose acetoacetate alkanoate without using a carboxamide/lithium chloride solvent system. The process involves contacting cellulose in a carboxylic acid diluent with an acetylating compound selected from the group consisting of a carboxylic acid anhydride and an acid chloride, an acetoacetylating compound selected from the group consisting of diketene, an alkyl acetoacetate and 2,2,6-trimethyl-4H-1,3-dioxin-4-one, and a mineral acid catalyst under conditions and in a molar ratio sufficient to cause the cellulose, acetylating compound and acetoacetylating compound to react to produce a substituted cellulose acetoacetate alkanoate.

    Abstract translation: 本发明涉及一种不使用羧酰胺/氯化锂溶剂体系制备取代的乙酰乙酰乙酸纤维素酯的方法。 该方法包括将羧酸稀释剂中的纤维素与选自羧酸酐和酰氯的乙酰化化合物接触,乙酰乙酰化合物选自双烯酮,乙酰乙酸烷基酯和2,2,6-三 三甲基-4H-1,3-二恶英-4-酮和无机酸催化剂,其条件和摩尔比足以使纤维素,乙酰化合物和乙酰乙酸化化合物反应以产生取代的乙酰乙酸酯纤维素链烷酸酯。

    pH-SENSITIVE MODIFIED CELLULOSE ESTER
    242.
    发明申请
    pH-SENSITIVE MODIFIED CELLULOSE ESTER 审中-公开
    pH敏感改性纤维素酯

    公开(公告)号:WO1997038016A1

    公开(公告)日:1997-10-16

    申请号:PCT/US1997005645

    申请日:1997-04-04

    CPC classification number: C08B3/16 C11D3/226 C11D3/3951 C11D17/0039

    Abstract: Cellulose esters according to formula (I): [(C6H7O2)(OR)x(OR')y(OH)3-x-y]n are described, where R is hydrophobic, R' is hydrophilic and not phthalyl or trimellityl, which may be designed, by the proper selection of R, R', x, y, and n, to dissolve under mild to alkaline conditions, and not before. A coating comprising a modified ester according to formula (I) may be used for controlled-release applications, particularly for a cleaning formulation.

    Abstract translation: 描述根据式(I)的纤维素酯:[(C 6 H 7 O 2)(OR)x(OR')y(OH)3-xy] n,其中R是疏水性的,R'是亲水性的而不是邻苯二甲酰基或偏苯三酸 通过适当选择R,R',x,y和n来设计,在轻度至碱性条件下溶解,而不是之前溶解。 包含根据式(I)的改性酯的涂层可用于控制释放应用,特别是用于清洁制剂。

    A METHOD FOR INCORPORATING CELLULOSE ESTERS INTO CELLULOSE BY IMMERSING CELLULOSE IN AN ACID-DOPE SOLUTION
    244.
    发明申请
    A METHOD FOR INCORPORATING CELLULOSE ESTERS INTO CELLULOSE BY IMMERSING CELLULOSE IN AN ACID-DOPE SOLUTION 审中-公开
    一种通过在酸性溶液中将纤维素掺入纤维素的方法

    公开(公告)号:WO1997034044A1

    公开(公告)日:1997-09-18

    申请号:PCT/US1997003585

    申请日:1997-03-07

    CPC classification number: D21C9/005 C08L1/02 C08L2666/02

    Abstract: A method for treating cellulose with cellulose ester for use in various paper products involves reacting cellulose and an acid anhydride to form a cellulose ester-carboxylic acid solution. Acetic anhydride may be used as the acid anhydride, and a cellulose acetate-acetic acid solution may be formed as the resulting cellulose ester-acetic acid solution. The cellulose acetate-acetic acid solution is diluted in a mixer, with additional acetic acid. Bulk cellulose is milled into cellulose fibers, and the diluted cellulose acetate-acetic acid solution diluted is combined with the cellulose fibers to achieve a treated fiber. Excess cellulose acetate-acetic acid solution is removed from the treated fiber and recycled to the mixer used in dilution. The treated fiber is water-washed by removing water from the washed treated fiber. This product can then be used in papermaking to produce a sheet for circuit boards, laminated products, and various paper products.

    Abstract translation: 用于各种纸制品的用纤维素酯处理纤维素的方法包括使纤维素和酸酐反应形成纤维素酯 - 羧酸溶液。 可以使用乙酸酐作为酸酐,并且可以形成醋酸纤维素 - 乙酸溶液作为所得的纤维素酯 - 乙酸溶液。 乙酸乙酸纤维素溶液在混合器中用另外的乙酸稀释。 将大量纤维素研磨成纤维素纤维,稀释的稀释的乙酸纤维素 - 乙酸溶液与纤维素纤维组合以获得经处理的纤维。 从处理的纤维中除去过量的醋酸纤维素 - 乙酸溶液并再循环到稀释用的混合器中。 经处理的纤维通过从洗涤过的纤维中除去水进行水洗。 然后可以将该产品用于造纸中以生产用于电路板,层压产品和各种纸制品的片材。

    MUTIVARIATE SAMPLE ANALYSIS
    247.
    发明申请
    MUTIVARIATE SAMPLE ANALYSIS 审中-公开
    多样性分析

    公开(公告)号:WO1997028436A1

    公开(公告)日:1997-08-07

    申请号:PCT/US1997001185

    申请日:1997-01-24

    CPC classification number: G01N21/274

    Abstract: In a process for analyzing a sample of unknown constitution by an analytical apparatus, a set of analytical measurements and a set of reference measurements, each comprising a set of multivariate signal responses obtained from a set of samples by a first and a second analytical apparatus, are adjusted to remove operational variabilities associated with the apparatus, thereby providing a first and a second matrix of adjusted signal responses. One of the two matrices of adjusted signal responses is decomposed into a matrix product of a matrix comprising a set of principal factors and a matrix comprising the amounts associated with each of the principal factors. A compressed signal response matrix product is constructed that comprises a matrix comprising a subset of the set of principal factors and a matrix comprising the amounts associated with each of the principal factors included in the subset. From the latter matrix a projection matrix is computed. Using this projection matrix and a first normalized matrix product that comprises a normalization matrix and the other of the two matrices of adjusted signal responses, a compressed normalized matrix product is constructed. Values of the normalization matrix that minimize the difference between the first normalized matrix product and the compressed normalized matrix product are computed, thereby producing an optimal normalization matrix. A second normalized matrix product comprising the optimal normalization matrix and the one matrix of adjusted signal responses that had been decomposed into a matrix product is constructed. Using the other matrix of adjusted signal responses and the second normalized matrix product, a calibration useful for analyzing the signal responses obtained from the sample of unknown constitution by the first analytical apparatus is constructed and applied to the signal responses from the sample to determine its constitution.

    Abstract translation: 在通过分析装置分析未知构成的样本的过程中,分析测量和一组参考测量的集合包括由第一和第二分析装置从一组样本获得的一组多变量信号响应, 被调整以去除与装置相关联的操作变量,从而提供经调整的信号响应的第一和第二矩阵。 经调整的信号响应的两个矩阵之一被分解成包括一组主要因子的矩阵的矩阵乘积和包括与每个主要因素相关联的量的矩阵。 构造压缩信号响应矩阵产品,其包括包括该主要因素集合的子集的矩阵和包括与包括在子集中的每个主要因子相关联的量的矩阵。 从后面的矩阵中,计算投影矩阵。 使用该投影矩阵和包括归一化矩阵和调整的信号响应的两个矩阵中的另一个的第一归一化矩阵积,构建压缩的归一化矩阵乘积。 计算最小化第一归一化矩阵乘积和压缩归一化矩阵乘积之间的差的归一化矩阵的值,由此产生最优归一化矩阵。 构建了包含最佳归一化矩阵和分解为矩阵积的调整信号响应的一个矩阵的第二归一化矩阵乘积。 使用经调整的信号响应的其他矩阵和第二归一化矩阵乘积,构建用于分析由第一分析装置从未知构成的样本获得的信号响应的校准,并将其应用于来自样本的信号响应,以确定其构成 。

    SMALL PARTICLE SIZE POLYESTER/ACRYLIC HYBRID LATEXES
    248.
    发明申请
    SMALL PARTICLE SIZE POLYESTER/ACRYLIC HYBRID LATEXES 审中-公开
    小颗粒尺寸聚酯/丙烯酸混合物

    公开(公告)号:WO1997028198A1

    公开(公告)日:1997-08-07

    申请号:PCT/US1997001684

    申请日:1997-01-31

    CPC classification number: C08F283/02 C08F257/02 C08F265/04

    Abstract: This invention provides the preparation of water-dispersible polyester/acrylic hybrids via a two-stage emulsion polymerization process. For example, methacrylic acid and/or 2-hydroxyethyl methacrylate are copolymerized with styrene/acrylic monomers to yield a relatively hydrophilic and hydro-plasticized first stage. Subsequent additions of hydrophobic monomers to this first stage "seed" result in an inversion of the latex such that the more hydrophilic first stage is at the particle surface. This results not only in improved stability of the resulting latex without the use of additional surfactants, as evidenced by the production of reduced amounts of coagulum, while it also offers relatively low minimum filming temperatures due to the hydroplasticization of the shell of the particle. Furthermore, the use of the water-dispersible polyester results in extremely fine latex particle sizes which can significantly enhance coating properties such as film gloss and clarity.

    Abstract translation: 本发明通过两步乳液聚合方法提供了水分散性聚酯/丙烯酸杂化物的制备。 例如,甲基丙烯酸和/或甲基丙烯酸2-羟乙酯与苯乙烯/丙烯酸单体共聚以产生相对亲水和加氢的第一级。 随后在第一阶段“种子”中添加疏水性单体导致胶乳反转,使得亲水性较高的第一级位于颗粒表面。 这不仅导致所得胶乳的稳定性的提高,而不需要使用附加的表面活性剂,如通过生产减少量的凝结物所证明的,同时由于颗粒的壳体的水塑化也提供相对低的最低成膜温度。 此外,使用水分散性聚酯导致极细的胶乳粒径,其可以显着增强涂层性能,例如膜光泽度和透明度。

    PROCESS FOR PREPARING N-(3-AMINO-4-CHLOROPHENYL) ACYLAMIDES
    249.
    发明申请
    PROCESS FOR PREPARING N-(3-AMINO-4-CHLOROPHENYL) ACYLAMIDES 审中-公开
    制备N-(3-氨基-4-氯苯基)丙烯酰胺的方法

    公开(公告)号:WO1997027171A1

    公开(公告)日:1997-07-31

    申请号:PCT/US1997001393

    申请日:1997-01-29

    CPC classification number: C07C231/02 C07C303/38 C07C311/08 C07C311/18

    Abstract: The present invention provides a process for preparing N-(3-amino-4-chlorophenyl) acylamides of Formula (I): comprising reacting, in a solvent comprising at least one polar solvent, in the presence of at least one acid acceptor, 1-chloro-2,4-diaminobenzene with at least one acyl chloride of formula (II): Cl-X-R wherein X is -CO- or -SO2-; R is selected from the group C1-C25 alkyl; C1-C25 alkyl substituted with one or more groups selected from C1-C12 alkoxy, aryl, aryloxy and C5-C7 cycloalkyl; aryl; C5-C7 cycloalkyl. The present invention further comprises the step of purifying said N-(3-amino-4-chlorophenyl) acylamides by crystallizing from a non-polar solvent or conducting the reaction in a mixture of at least one polar and at least one non-polar solvent.

    Abstract translation: 本发明提供了制备式(I)的N-(3-氨基-4-氯苯基)酰胺的方法:包括在至少一种极性溶剂的溶剂中,在至少一种酸受体的存在下,使 - 氯代-2,4-二氨基苯与至少一种式(II)的酰氯反应:其中X是-CO-或-SO 2 - ; R选自C 1 -C 25烷基; 被一个或多个选自C 1 -C 12烷氧基,芳基,芳氧基和C 5 -C 7环烷基的基团取代的C 1 -C 25烷基; 芳基; C5-C7环烷基。 本发明还包括通过从非极性溶剂中结晶或在至少一种极性和至少一种非极性溶剂的混合物中进行反应来纯化所述N-(3-氨基-4-氯苯基)酰胺的步骤 。

    PROCESS FOR ISOMERICALLY SELECTIVE HYDROCARBOXYLATION OF OLEFINS
    250.
    发明申请
    PROCESS FOR ISOMERICALLY SELECTIVE HYDROCARBOXYLATION OF OLEFINS 审中-公开
    烯烃的异构选择性烃基氧化方法

    公开(公告)号:WO1997027167A1

    公开(公告)日:1997-07-31

    申请号:PCT/US1997001169

    申请日:1997-01-24

    CPC classification number: C07C51/14

    Abstract: Disclosed is a process for the preparation of an aliphatic carbonyl derivative compound having a normal:iso ratio of at least 3, and preferably 4, selected from aliphatic carboxylic acids, alkylesters of aliphatic carboxylic acids and anhydrides of aliphatic carboxylic acids by the hydrocarboxylation of terminal linear olefins in the presence of a catalyst system comprising (1) a rhodium containing compound, (2) a halide promoter selected from iodine, bromine and compounds thereof and (3) a trisubstituted organic compound of a group-15 element, preferably a phosphine or arsine. This process constitutes an improvement over known processes since it provides a one-step, lower pressure, higher reaction rate method of producing carboxylic acid derivatives having an increased normal:iso ratio in the absence of potentially hazardous chlorinated hydrocarbons and aromatic hydrocarbons.

    Abstract translation: 公开了通过末端加氢羧化作用制备脂肪族羰基衍生物化合物的方法,所述脂肪族羰基衍生物化合物具有至少3个,优选4个选自脂肪族羧酸,脂肪族羧酸的烷基酯和脂肪族羧酸的酸酐的至少3个,优选4个 在包含(1)含铑化合物的催化剂体系存在下的直链烯烃,(2)选自碘,溴及其化合物的卤化物促进剂和(3)第15族元素,优选膦的三取代有机化合物 或胂。 该方法构成了对已知方法的改进,因为它提供了在没有潜在危险的氯代烃和芳烃的情况下,生产具有增加的正常比例的羧酸衍生物的一步,低压,更高反应速率的方法。

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