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    Antifoams based on oil-in-water emulsions
    1.
    发明授权
    Antifoams based on oil-in-water emulsions 失效
    基于水包油乳液的消泡剂

    公开(公告)号：US4664844A

    公开(公告)日：1987-05-12

    申请号：US690508

    申请日：1985-01-11

    Applicant: Wolfram Bergold ,  Jaroslav Melzer

    Inventor： Wolfram Bergold ,  Jaroslav Melzer

    IPC: B01D19/04 ,  C02F1/52 ,  D21H3/36

    CPC classification number: B01D19/04 ,  B01D19/0404

    Abstract: In antifoams based on oil-in-water emulsions, the oil phase of the emulsion contains(a) C.sub.12 -C.sub.26 -alcohols, distillation residues obtained in the preparation of alcohols by an oxosynthesis or by the Ziegler process and/or(b) fatty acid esters of C.sub.12 -C.sub.22 -carboxylic acids with monohydric, dihydric or trihydric C.sub.1 -C.sub.18 -alcohols, with or without(c) a hydrocarbon having a boiling point above 200.degree. C. or fatty acids of 12 to 22 carbon atoms,constitutes from 15 to 60% by weight of the emulsion and has a mean droplet size of from 0.5 to 15 .mu.m. The emulsions are stabilized by the addition of from 0.05 to 0.5% by weight, based on the total emulsion, of a high molecular weight water-soluble homopolymer or copolymer of acrylic acid, methacrylic acid, acrylamide or methacrylamide.

    Abstract translation: 在基于水包油乳液的消泡剂中，乳液的油相含有（a）C12-C26-醇，通过氧化合成法或通过齐格勒法制备醇所获得的蒸馏残余物和/或（b）脂肪 C 12 -C 22羧酸与一元，二元或三元C 1 -C 18醇的酸酯，具有或不具有（c）沸点高于200℃的烃或12至22个碳原子的脂肪酸构成 15至60重量％的乳液，并且具有0.5至15μm的平均液滴尺寸。 通过加入基于总乳液的0.05至0.5重量％的高分子量水溶性均聚物或丙烯酸，甲基丙烯酸，丙烯酰胺或甲基丙烯酰胺的共聚物来稳定乳液。

    Cross-linked polyamide-imine polymer for papermaking
    2.
    发明授权
    Cross-linked polyamide-imine polymer for papermaking 失效
    用于造纸的交联聚酰胺 - 内酰胺聚合物

    公开(公告)号：US3642572A

    公开(公告)日：1972-02-15

    申请号：US3642572D

    申请日：1969-03-06

    Applicant: BASF AG

    Inventor： ENDRES HORST ,  FIKENTSCHER ROLF ,  MAURER WALTER ,  SCHARF EMIL ,  SOENKSEN UWE

    IPC: C08G69/48 ,  D21H17/55 ,  D21H21/10 ,  D21H3/36

    CPC classification number: C08G69/48 ,  D21H17/55 ,  D21H21/10

    Abstract: Cross-linked reaction products obtained by (a) reacting 1 mole of a dicarboxylic acid such as adipic acid with 0.8 to 1.5 moles of a polyalkylene-polyamine such as diethylenetriamine and/or up to 0.4 mole of an omega -aminocarboxylic acid such as W-aminocaproic acid or a lactam thereof, (b) reacting the reaction product of step (a) with 1 to 30 moles of a 1,2-alkylenimine compound such as ethyleneimine per mole of basic nitrogen in the reaction product of step (a) in the presence of a small amount of acid or alkylating agent such as sulfuric acid as catalyst and (c) cross-linking the reaction product of step (b) with 1 to 20 parts of a bifunctional compound such as epichlorohydrin per 100 parts of reaction product. Twenty-five percent solutions of the new products have a viscosity of from 300 to 4,000 centipoises at 25* C.

    Abstract translation: 通过（a）使1摩尔二羧酸如己二酸与0.8至1.5摩尔多亚烷基多胺如二亚乙基三胺和/或至多0.4摩尔的ω-氨基羧酸如W（如W）反应获得的交联反应产物 - 氨基己酸或其内酰胺，（b）在步骤（a）的反应产物中使步骤（a）的反应产物与1-30摩尔1,2-亚烷基亚胺化合物如乙烯亚胺/摩尔碱性氮反应， a）在少量的酸或烷基化剂如硫酸作为催化剂的存在下，和（c）将步骤（b）的反应产物与1至20份双官能化合物如表氯醇/ 100份交联 的反应产物。 25％的新产品溶液在25℃下的粘度为300至4,000厘泊。

    Manufacture of paper using amphoteric strengthening agents
    3.
    发明授权
    Manufacture of paper using amphoteric strengthening agents 失效
    使用AMPHOTERIC加强剂制造纸张

    公开(公告)号：US3677888A

    公开(公告)日：1972-07-18

    申请号：US3677888D

    申请日：1969-07-22

    Applicant: AMERICAN CYANAMID CO

    Inventor： ECONOMOU PETER

    IPC: C08J3/24 ,  D21H17/43 ,  D21H3/36

    CPC classification number: D21H17/43 ,  C08J3/246

    Abstract: PAPER OF IMPROVED DRY STRENGTH IS OBTAINED WHEN A NORMALLY LIQUID AND WATER-INSOLUBLE POLYSALT COACERVATE (WHEREIN ONE OF THE POLYMER COMPONENTS IS WEAKLY IONIC) WHICH HAS BEEN RENDERED WATER-SOLUBLE BY ADDITION OF AN IONIZATION SUPPRESSOR IS ADDED TO A PAPERMAKING FIBROUS SUSPENSION UNDER CONDITIONS SUCH THAT THE COACEVATE IS PRECIPITATED AS COLLOIDAL DROPLETS. THE DROPLETS ARE DEPOSITED ON THE FIBERS AND THE FIBERS ARE PROCESSED INTO PAPER IN USUAL MANNER.

    Component reaction product and process for increasing the wet strength of paper
    4.
    发明授权
    Component reaction product and process for increasing the wet strength of paper 失效
    组分反应产物和增加纸张湿度强度的方法

    公开(公告)号：US3640840A

    公开(公告)日：1972-02-08

    申请号：US3640840D

    申请日：1969-03-18

    Applicant: BAYER AG

    Inventor： ZIEMAN HEINZ ,  LEHMANN WOLFGANG ,  TROEMEL GERHARD

    IPC: C08G69/48 ,  D21H17/55 ,  D21H17/56 ,  D21H3/36

    CPC classification number: C08G69/48 ,  D21H17/55 ,  D21H17/56

    Abstract: A reaction product and process for increasing the wet strength of paper which comprises adding to a slurry of paper fibers selfcross-linking water soluble reaction products prepared from a) epihalohydrins and/or Alpha -dihalo-hydrins such as epichlorohydrin, b) water soluble basic polyamides such as that formed by the reaction of diethylene-triamine and adipic acid, and c) water soluble polyamines such as bis-(3-amino-propyl)amine which contain at least two nitrogen atoms separated from one another by at least three carbon atoms and optionally also by oxygen or sulfur atoms, and contain at least two hydrogen atoms attached to different nitrogen atoms wherein the components b) and c) are used in a proportion of 1-10:1 and component a) is used in an amount of 0.5 to 1.5 mole per basic amino group.

    Abstract translation: 一种用于增加纸的湿强度的反应产物和方法，其包括将由a）表卤代醇和/或α-二卤代水合物如表氯醇，b）水制备的纸纤维自交联水溶性反应产物 可溶性碱性聚酰胺，例如通过二亚乙基 - 三胺和己二酸反应形成的碱性聚酰胺，和c）水溶性多胺如双 - （3-氨基 - 丙基） - 胺，其含有至少两个氮原子， 至少三个碳原子和任选地还有氧或硫原子，并且含有至少两个连接到不同氮原子上的氢原子，其中组分b）和c）以1-10:1的比例使用并且组分a）被使用 每个碱性氨基的量为0.5-1.5摩尔。

    Paper sizing
    8.
    发明授权
    Paper sizing 失效
    纸张尺寸

    公开(公告)号：US4323425A

    公开(公告)日：1982-04-06

    申请号：US132505

    申请日：1980-03-21

    Applicant: Edwin Dowthwaite ,  Ian R. Hiskens

    Inventor： Edwin Dowthwaite ,  Ian R. Hiskens

    IPC: D21H17/00 ,  D21H17/62 ,  D21H3/34 ,  D21H3/36

    CPC classification number: D21H17/62 ,  D21H17/00 ,  Y10T428/31848 ,  Y10T428/31993

    Abstract: This invention relates to improved rosin sizes, and to improved methods for preparing sized paper. In one embodiment, sized paper is prepared by adding the improved rosin size and a polyamine retention aid to a pulp slurry before sheet formation, without the use of aluminum sulfate. In another embodiment, paper is surface-sized with the improved rosin size in the absence of both aluminum sulfate and retention aids.

    Abstract translation: 本发明涉及改进的松香尺寸，以及用于制备大小纸的改进方法。 在一个实施方案中，通过在不使用硫酸铝的情况下，将改进的松香尺寸和多胺助留剂添加到纸浆形成之前，将其制备成大小的纸。 在另一个实施方案中，在不存在硫酸铝和助留剂的情况下，纸张具有改进的松香尺寸的表面尺寸。

    Method of making wet-pressed fiberboard of high resistance to bending
    9.
    发明授权
    Method of making wet-pressed fiberboard of high resistance to bending 失效
    制造抗弯曲耐热纤维板的方法

    公开(公告)号：US4032394A

    公开(公告)日：1977-06-28

    申请号：US579243

    申请日：1975-05-20

    Applicant: Ernst Ludvig Back

    Inventor： Ernst Ludvig Back

    IPC: D21J1/16 ,  D21H3/36 ,  D21H5/02

    CPC classification number: D21J1/16

    Abstract: Wet pressed fiber board material of high resistance to bending is produced by preparing a layer of fiber from a water suspension of the fiber, said layer being de-watered and pressed to form a coherent flat sheet, wherein raw material is distributed over the surface of said layer in varying quantities and/or qualities in a manner such that the pressed board obtains strip-like surface portions which extend in at least one direction of the horizontal plane of the sheet, said strip-like surface portions having varying density and/or strength properties, whereby the finished board has a higher resistance to bending than a homogeneous sheet having substantially the same average density.

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