Production of N-(1-alkenyl)-carbamyl chlorides
    31.
    发明授权
    Production of N-(1-alkenyl)-carbamyl chlorides 失效
    N-(1-烷基) - 氨基甲酰氯的生产

    公开(公告)号:US4038311A

    公开(公告)日:1977-07-26

    申请号:US533143

    申请日:1974-12-16

    摘要: The production of N-(1-alkenyl)-carbamyl chlorides by reaction of a Schiff base with phosgene, and the new N-(1-alkenyl)-carbamyl chlorides themselves. The new compounds which can be prepared by the process of the invention are valuable starting materials for the production of coating intermediates, plastics, paints and plant protection agents.One preferred group of compounds available from said process are the N-vinyl compounds of the formula ##STR1## in which R.sup.1 is cyclohexyl, cyclooctyl, norbornyl, tetrahydrodicyclopentadienyl, n-hexyl, n-octyl, 2-ethylhexyl or phenyl. Another preferred group of compounds are the N-vinyl-N-t-alkylcarbamyl chlorides of 4 to 6 carbon atoms in the tertiary alkyl group, especially N-vinyl-N-t-butylcarbamyl chloride.

    Process for surface sizing paper
    33.
    发明授权
    Process for surface sizing paper 失效
    表面施胶纸的工艺

    公开(公告)号:US3983268A

    公开(公告)日:1976-09-28

    申请号:US522631

    申请日:1974-11-11

    摘要: Process for the manufacture of surface-sized papers by impregnating a paper with a solution containing a water-soluble salt of a random polymer based on .alpha.-olefins and ethylenically unsaturated acids and a compound of the formula: ##EQU1## wherein R is alkyl, aryl or a radical of the formula: ##EQU2## and R.sup.1 and R.sup.2 each independently denotes H, R or a radical of the formula:R -- O-- CH.sub.2 --and drying the impregnated paper. Very well sized papers are obtained which show alkali resistance and filler compatibility.

    摘要翻译: 通过用包含基于α-烯烃和烯键式不饱和酸的无规聚合物的水溶性盐的溶液浸渍纸而制备表面尺寸纸的方法和下式化合物:R1R-CO-N ANGLE R2 其中R是烷基,芳基或下式的基团:R1 ANGLEN-R2和R1和R2各自独立地表示H,R或下式的基团:

    Production of molding materials containing polyphenylene ethers
    40.
    发明授权
    Production of molding materials containing polyphenylene ethers 失效
    生产含聚苯醚的成型材料

    公开(公告)号:US4436870A

    公开(公告)日:1984-03-13

    申请号:US400689

    申请日:1982-07-22

    摘要: Molding materials containing high molecular weight polyphenylene ethers are produced by a process in which a solution of a polyphenylene ether in an organic solvent, together with another polymer, is freed of solvent by multi-stage evaporation.The solvent is preferably an aromatic compound from the class comprising the hydrocarbons, halohydrocarbons, ethers or esters, the ratio of the other polymer to the polyphenylene ether is advantageously from 99:1 to 20:80 parts by weight, the other polymer is, in particular, a homopolymer or copolymer of styrene or of a homolog thereof, which may be modified with rubber, and the multi-stage evaporation process preferably comprises not less than two and not more than four working up stages.The evaporation is carried out in general at from 120.degree. to 280.degree. C. and under a pressure of from 1 to 3,000 mbar, advantageously in the presence of assistants which reduce the partial pressure, eg. water and/or methanol.

    摘要翻译: 含有高分子量聚苯醚的成型材料是通过多层蒸发而将有机溶剂中的聚苯醚与其它聚合物一起溶解的方法而制得的。 溶剂优选为包含烃类,卤代烃类,醚类或酯类的芳族化合物,另一种聚合物与聚苯醚的比率有利地为99:1至20:80重量份,另一个聚合物为 特别是可以用橡胶改性的苯乙烯或其同系物的均聚物或共聚物,多级蒸发方法优选包括不少于2个且不超过4个加工阶段。 蒸发通常在120℃至280℃和1至3,000毫巴的压力下进行,有利的是在有助于降低分压的助剂的存在下进行。 水和/或甲醇。