Process for the manufacture of water-hardening material
    102.
    发明授权
    Process for the manufacture of water-hardening material 失效
    水硬化材料制造工艺

    公开(公告)号:US4344910A

    公开(公告)日:1982-08-17

    申请号:US26221

    申请日:1979-04-02

    摘要: An improved process for the manufacture of reinforced shaped articles from water-hardening materials. A plurality of continuous networks of synthetic organic polymer material having at least two meshes per square centimeter are incorporated in said water-hardening materials as reinforcement. The networks are prepared by forming meshes in an unfibrillated film of the synthetic organic polymer material.

    摘要翻译: 一种用于从水硬化材料制造增强成型制品的改进方法。 在所述水硬化材料中加入多个具有每平方厘米至少两个网眼的合成有机聚合物材料的连续网络。 通过在合成有机聚合物材料的未原纤化膜中形成网孔来制备网络。

    Process for removing alkali metal carboxylates from mixtures containing
a cycloakanone and a cycloalkanol obtained in oxidation of cycloalkanes
    103.
    发明授权
    Process for removing alkali metal carboxylates from mixtures containing a cycloakanone and a cycloalkanol obtained in oxidation of cycloalkanes 失效
    从含有环烷酮和环烷烃氧化得到的环烷醇的混合物中除去碱金属羧酸盐的方法

    公开(公告)号:US4326085A

    公开(公告)日:1982-04-20

    申请号:US158578

    申请日:1980-06-11

    摘要: The invention relates to a method for removal of alkali metal carboxylates from mixtures which contain a cycloalkanone and a cycloalkanol, in particular cyclohexanone and cyclohexanol, and which have been obtained in oxidation in the liquid phase of the corresponding cycloalkane with gas containing molecular oxygen.According to the invention, alkali metal carboxylates are removed from such mixtures containing a cycloalkanone and a cycloalkanol by washing the mixture with an aqueous acid solution, in particular an aqueous solution of carboxylic acid with 1-6 carbon atoms per molecule.The invention provides a solution to the problem of the so-called alkali entrainment, which leads to loss of cycloalkanone owing to condensation into undesired high-boiling by-products in the following distillation for gaining pure cycloalkone. This substantial loss is prevented by the method according to the invention.

    摘要翻译: 本发明涉及一种从含有环烷酮和环烷醇,特别是环己酮和环己醇的混合物中除去碱金属羧酸盐的方法,并且在相应的环烷烃的液相中用含有分子氧的气体氧化得到。 根据本发明,通过用酸性水溶液,特别是每分子具有1-6个碳原子的羧酸水溶液洗涤混合物,从含有环烷酮和环烷醇的混合物中除去碱金属羧酸盐。 本发明提供了所谓的碱夹带问题的解决方案,由于在随后的蒸馏中冷凝成不纯的高沸点副产物而导致环烷酮的损失,以获得纯的环烯酮。 通过根据本发明的方法防止了这种显着的损失。

    Process for the preparation of shaped articles
    104.
    发明授权
    Process for the preparation of shaped articles 失效
    成型制品的制备工艺

    公开(公告)号:US4315884A

    公开(公告)日:1982-02-16

    申请号:US024435

    申请日:1979-03-23

    摘要: The invention concerns a process in which a shaped article is prepared by first coating the inside of a mold with a coating powder, curing the coating, introducing a thermosetting mass in the mold and curing to form an article provided with a decorative layer. The invention consists in the use of a polyester-based coating powder, obtained by absorbing a liquid catalyst in part of the unsaturated components making up the powder, separately grinding that part and a mixture of the remaining components to about the same particle size and mixing the powders thus obtained. The invention assures better curing of the coating.

    摘要翻译: 本发明涉及一种方法,其中通过首先用涂料粉末涂覆模具内部来制备成型制品,固化涂层,将热固性材料引入模具中并固化以形成具有装饰层的制品。 本发明在于使用通过在部分构成粉末的不饱和组分中吸收液体催化剂而获得的聚酯基涂料粉末,将该部分和剩余组分的混合物分别研磨至大致相同的粒度并混合 由此获得的粉末。 本发明确保了涂层的更好的固化。

    Two stage procedure for the preparation of polypyrrolidone
    105.
    发明授权
    Two stage procedure for the preparation of polypyrrolidone 失效
    制备聚吡咯烷酮的两步法

    公开(公告)号:US4309530A

    公开(公告)日:1982-01-05

    申请号:US113286

    申请日:1980-01-18

    IPC分类号: C08G69/00 C08G69/24

    CPC分类号: C08G69/24

    摘要: Polypyrrolidone polymers and copolymers are obtained by polymerizing 2-pyrrolidone, optionally with another lactam, in the presence of a catalyst and accelerator, first in the mass until at least 10% of the monomer is converted but the reaction product is still capable of suspension, then completing the desired degree of polymerization by suspending the reaction mixture in an inert liquid dispersion agent that does not dissolve the desired polymer. Relatively high molecular weight polymers are prepared in a short amount of time using this two-stage procedure.

    摘要翻译: 聚吡咯烷酮聚合物和共聚物通过在催化剂和促进剂的存在下,任选地与另一种内酰胺聚合的2-吡咯烷酮,首先在该物质中直至至少10%的单体转化,但反应产物仍然能够悬浮, 然后通过将反应混合物悬浮在不溶解所需聚合物的惰性液体分散剂中来完成所需的聚合度。 使用该两步法在短时间内制备相对高分子量的聚合物。

    Process for preparing 2-pyrrolidones
    106.
    发明授权
    Process for preparing 2-pyrrolidones 失效
    制备2-吡咯烷酮的方法

    公开(公告)号:US4279820A

    公开(公告)日:1981-07-21

    申请号:US136115

    申请日:1980-03-27

    CPC分类号: C07D201/08

    摘要: 2-pyrrolidones are prepared by hydrogenating a succinonitrile in the liquid phase in the presence of ammonia by passing an ammoniacal solution of a succinonitrile over a fixed bed catalyst, particularly of the trickle-phase type, in which the catalyst is nickel on an alkaline support such as calcium hydroxide or calcium carbonate. Attractive yields are achieved without the expense of filtering off and separating used catalyst as in prior procedures.

    摘要翻译: 通过使琥珀腈的氨溶液通过固定床催化剂,特别是涓流相类型的催化剂为镍的碱性载体上的氨水溶液,在氨的存在下,通过在液相中氢化丁二腈而制备2-吡咯烷酮 例如氢氧化钙或碳酸钙。 无需像过去的程序那样过滤和分离使用过的催化剂,就可以实现有吸引力的产率。

    Polyurethane-based lacquer binders prepared from
tris-(.beta.-hydroxypropyl-isocyanurate
    109.
    发明授权
    Polyurethane-based lacquer binders prepared from tris-(.beta.-hydroxypropyl-isocyanurate 失效
    由三 - (β-羟丙基 - 异氰脲酸酯)制备的聚氨酯类漆粘合剂

    公开(公告)号:US4245080A

    公开(公告)日:1981-01-13

    申请号:US17281

    申请日:1979-03-05

    CPC分类号: C08G18/66 C08G18/3853

    摘要: Single-component or two part polyurethane-based lacquers are prepared on the basis of a polymeric polyhydroxy compound having a high molecular weight in the range of 300 to 5000, such as poly(oxytetramethylene)glycol, a low molecular weight diol such as ethylene glycol, at least one isocyanate such as toluene diisocyanate and tris-(.beta.-hydroxypropyl)-isocyanurate or its ethoxylated derivative together with the customary accelerators, additives, solvents and the like used in lacquer manufacture. These lacquers exhibit exceptional hardness, high impact resistance, good adhesion to the substrate to which they are applied as well as corrosion resistance.

    摘要翻译: 单组分或两部分聚氨酯基漆基于高分子量范围为300-5000的聚合多羟基化合物制备,例如聚(氧四亚甲基)二醇,低分子量二醇如乙二醇 ,至少一种异氰酸酯如甲苯二异氰酸酯和三 - (β-羟丙基) - 异氰脲酸酯或其乙氧基化衍生物以及在漆制造中使用的常规促进剂,添加剂,溶剂等。 这些漆具有优异的硬度,高抗冲击性,对其所施加的基材的良好粘合性以及耐腐蚀性。