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134 条记录 (耗时 0.015 秒)

    Slump retaining agent
    121.
    发明授权
    Slump retaining agent 失效
    SLUMP保留代理

    公开(公告)号：US5162402A

    公开(公告)日：1992-11-10

    申请号：US787191

    申请日：1991-11-04

    申请人： Hideo Ogawa ,  Yoshio Tanaka ,  Tadashi Tsuchitani

    发明人： Hideo Ogawa ,  Yoshio Tanaka ,  Tadashi Tsuchitani

    IPC分类号： C04B24/26 ,  C04B24/32 ,  C04B40/00 ,  C08F216/14 ,  C08F222/20 ,  C08L35/08

    CPC分类号： C04B24/267 ,  C04B40/0039 ,  C08F216/1416 ,  C08F222/20 ,  C08L35/08 ,  C04B2103/308

    摘要： A polymeric composition which reduces the loss of flowability of a cementitious composition comprises at least one polymer as a salt thereof having the form of a copolymer of(a) a maleic anhydride half-ester with a compound of the formula IRO(AO).sub.m H (I) where R is a C.sub.1-20 alkyl group, A is a C.sub.2-4 alkylene group and m is an integer from 2-16; and(b) a monomer having the formula IICH.sub.2 .dbd.CHCH.sub.2 -(OA).sub.n OR (II) where n is an integer from 1-90.In a preferred embodiment, there is present a polycarboxylate salt which is at least one polymer or copolymer comprising at least one of the monomers acrylic acid, methacrylic acid, maleic anhydride, maleic acid and maleic acid monoester, polymer and polycarboxylate salt being blended in the proportion of 0.1-10 parts of weight of polymer per part of polycarboxylate salt.Cementitious compositions such as concrete in which such polymeric compositions are included maintain their slump properties.

    摘要翻译： 降低水泥组合物流动性损失的聚合物组合物包含至少一种作为其盐的聚合物，其具有（a）马来酸酐半酯与式I RO（AO）mH的化合物的共聚物形式 （I）其中R是C 1-20烷基，A是C 2-4亚烷基，m是2-16的整数; 和（b）具有式II CH2 = CHCH2-（OA）nOR（II）的单体，其中n是1-90的整数。 在优选的实施方案中，存在聚羧酸盐，其是至少一种包含丙烯酸，甲基丙烯酸，马来酸酐，马来酸和马来酸单酯中的至少一种的聚合物或共聚物，聚合物和聚羧酸盐共混在 比例为每份聚羧酸盐0.1-10份聚合物。 包含这些聚合物组合物的混凝土的水泥组合物保持其坍落度特性。

    Denture adhesive preparation
    127.
    发明授权
    Denture adhesive preparation 失效
    牙膏胶粘剂制剂

    公开(公告)号：US3868432A

    公开(公告)日：1975-02-25

    申请号：US47663774

    申请日：1974-06-05

    申请人： WARNER LAMBERT CO

    发明人： KEEGAN JAMES J ,  RUBIN HOWARD ,  GIDWANI RAM N

    IPC分类号： A61K6/00 ,  C08F29/36 ,  C08F33/08

    CPC分类号： A61K6/0026 ,  C08L71/02 ,  C08L33/26 ,  C08L35/08 ,  C08L33/10 ,  C08L33/14

    摘要： An improved anhydrous denture adhesive is prepared to contain a mixture of a cationic polymeric material and a synthetic anionic gum material as the adhesive ingredient. The mixture may be formulated as a powder or anhydrous paste, which, when applied to dentures and exposed to moisture, develops superior adhesive properties. Suitable cationic materials include at least one of the following: copolymers of substituted or unsubstituted acrylamide with vinyl quaternary ammonium salts, and copolymers of substituted or unsubstituted acrylamide with vinyl and alkyl substituted vinyl pyridinium salts. As the anionic component there may be used at least one synthetic gum which is a copolymer of maleic acid with vinly-lower alkyl-ethers.

    摘要翻译： 制备改进的无水义齿粘合剂以包含阳离子聚合材料和合成阴离子胶材料的混合物作为粘合剂成分。 该混合物可以配制成粉末或无水糊状物，当应用于假牙并暴露于水分时，会发展出优异的粘合性能。 合适的阳离子材料包括以下中的至少一种：取代或未取代的丙烯酰胺与乙烯基季铵盐的共聚物，以及取代或未取代的丙烯酰胺与乙烯基和烷基取代的乙烯基吡啶鎓盐的共聚物。 作为阴离子组分，可以使用至少一种合成胶，它是马来酸与乙烯 - 低级烷基醚的共聚物。

    Denture adhesive preparation
    128.
    发明授权
    Denture adhesive preparation 失效
    牙膏胶粘剂制剂

    公开(公告)号：US3833518A

    公开(公告)日：1974-09-03

    申请号：US24381672

    申请日：1972-04-13

    申请人： WARNER LAMBERT CO

    发明人： GIDWANI R ,  RUBIN H ,  KEEGAN J

    IPC分类号： A61K6/00 ,  C09J105/00 ,  C09J133/26 ,  C08B21/08 ,  C08F37/16

    CPC分类号： C09J105/00 ,  C08L2666/02 ,  C09J133/26 ,  A61K6/0026 ,  C08L1/282 ,  C08L33/26 ,  C08L5/06 ,  C08L1/16 ,  C08L1/286 ,  C08L5/04 ,  C08L35/08

    摘要： AN IMPROVED ANHYDROUS DENTURE ADHESIVE IS PREPARED TO CONTAIN A MIXTURE OF A CATIONIC POLYMERIC MATERIAL AND A NATURAL OR SYNTHETIC ANIONIC POLYMERIC MATERIAL AND HESIVE INGREDIENT. THE MIXTURE MAY BE FORMULATED AS A POWDER OR ANHYDROUS PASTE, WHICH, WHEN APPLIED TO DENTURES AND EXPOSED TO MOISTURE, DEVELOPS SUPERIOR ADHESIVE PROPERTIES. SUITABLE CATIONIC MATERIALS INCLUDE AT LEAST ONE OF THE FOLLOWING: COPOLYMER OF SUBSTITUTED OR UNSUBSTITUTED ACRYLAMIDE WITH VINYL QUATERNARY AMMONIUM SALTS; COPOLYMERS OF SUBSTITUTED, OR UNSUBSTITUTED ACRYLAMIDE WITH VINYL AND ALKYL SUBSTITUTED VINYL PYRIDINIUM SALTS; AND AN O-LOWER ALKYL-TRIMETHYLAMMONIUM CHLORIDE-SUBSITUTED-ANHYDROGLUCOSE POLYMER. AS THE ANIONIC COMPONENT THERE MAY BE USED AT LEAST ONE NATURAL GUM, SUCH AS GUM KARAYA, GUM ARABIC, GUM SHIRAZ, GUM TRAGACANTH, PECTIN, PECTINATES, ALGIN, AND ALGINATES; OR AT LEAST ONE SYNTHETIC GUM INCLUDING COPOLYMERS OF MALEIC ANHYDRIDE WITH VINYL-LOWER ALKYL-ETHERS, CARBOXYMETHYL CELLULOSES, AND CELLULOSE SULFATES.