Process for the preparation of polyurethane plastics using
dianhydro-hexite diols
    94.
    发明授权
    Process for the preparation of polyurethane plastics using dianhydro-hexite diols 失效
    使用二氢 - 己二醇二醇制备聚氨酯塑料的方法

    公开(公告)号:US4383051A

    公开(公告)日:1983-05-10

    申请号:US357118

    申请日:1982-03-11

    摘要: A process for the preparation of homogeneous and cellular polyurethane plastics by the reaction of(a) organic polyisocyanates;(b) compounds containing at least 2 Zerewitinoff-active hydrogen atoms and having molecular weights of from 400 to 10,000;(c) chain extenders, and, optionally, additional(d) short-chained compounds containing at least 2 Zerewitinoff-active hydrogen atoms and having a molar mass of from 32 to 400, as well as, optionally,(e) catalysts, blowing agents and other known additives,is described, which is characterized in that 1,4-3,6-dianhydro-hexites, preferably 1,4-3,6-dianhydro-D-sorbitol and/or 1,4-3,6-dianhydro-D-mannitol, optionally mixed with lower molecular weight compounds, preferably with polyols having a molecular weight of from 62 to 400, particularly preferably butane diol-1,4 are used as the chain extenders. The new chain extenders produce high quality elastomers and foams.

    摘要翻译: 通过(a)有机多异氰酸酯的反应制备均匀和细胞聚氨酯塑料的方法; (b)含有至少2个Zerewitinoff-活性氢原子并且分子量为400至10,000的化合物; (c)扩链剂,以及任选地,含有至少2个Zerewitinoff-活性氢原子并且具有32-400摩尔质量的另外的(d)短链化合物,以及任选的(e)催化剂,吹制 其特征在于1,4-3,6-二脱水 - 己酸,优选1,4-3,6-二脱氢-D-山梨糖醇和/或1,4-3,6 - 二水-D-甘露糖醇,任选地与较低分子量的化合物混合,优选使用分子量为62至400的多元醇,特别优选丁二醇-1,4作为扩链剂。 新的增链剂生产高品质的弹性体和泡沫。

    Process for the preparation of polyisocyanates containing isocyanurate
groups and their use in the production of polyurethanes
    95.
    发明授权
    Process for the preparation of polyisocyanates containing isocyanurate groups and their use in the production of polyurethanes 失效
    用于制备含有异氰脲酸酯基团的多异氰酸酯的方法及其在生产聚氨酯中的用途

    公开(公告)号:US4379905A

    公开(公告)日:1983-04-12

    申请号:US337344

    申请日:1982-01-06

    CPC分类号: C07D251/34 C08G18/791

    摘要: The subject of the invention is a process for the preparation of polyisocyanates containing isocyanurate groups which comprises trimerizing a proportion of the isocyanate groups of organic polyisocyanates or mixtures of di- and monoisocyanates in the presence of basic alkali metal compounds as catalysts and terminating the trimerization reaction by the addition of a catalyst poison, characterized in that the trimerization catalysts are complexes of(i) basic alkalimetal compounds and(ii) acyclic organic compounds which(a) have at least 6 alkylene oxide units of the formula --R--O--, wherein R represents C.sub.1 -C.sub.4 -alkylene, in the form of one or more polyether chains with only those chains having at least three alkylene oxide units being counted to achieve the total of at least 6 alkylene oxide units(b) contain a total of at least about 40% by weight of alkylene oxide units, the alkylene oxide units of any chains containing less than three of these units not being counted as alkylene oxide units, and(c) have a molecular weight of at least about 282.The invention also relates to the use of the process products according to the invention, optionally freed from excess starting polyisocyanates and/or optionally blocked with blocking agents for isocyanate groups, as an isocyanate component for the production of polyurethanes by the isocyanate polyaddition process.

    摘要翻译: 本发明的主题是制备含有异氰脲酸酯基团的多异氰酸酯的方法,其包括在碱性碱金属化合物作为催化剂的存在下将一部分有机多异氰酸酯的异氰酸酯基团或二异氰酸酯和单异氰酸酯的混合物三聚,并终止三聚反应 其特征在于三聚催化剂是(i)碱性碱金属化合物和(ii)无环有机化合物的复合物,其中(a)具有至少6个式-RO-的环氧烷单元,其中R 代表一个或多个聚醚链形式的C 1 -C 4 - 亚烷基,只有那些具有至少3个烯化氧单元的那些链被计数以达到总共至少6个氧化烯单元(b),总共包含至少约 40重量%的环氧烷单元,含有少于3个这些单元的任何链的烯化氧单元不被计为环氧烷 单元,和(c)具有至少约282的分子量。本发明还涉及根据本发明的方法产物的使用,任选地不含过量起始多异氰酸酯和/或任选地用异氰酸酯基团封闭剂封闭, 作为通过异氰酸酯加聚方法生产聚氨酯的异氰酸酯组分。

    Aminoplast dispersions and polyurethanes prepared therefrom
    98.
    发明授权
    Aminoplast dispersions and polyurethanes prepared therefrom 失效
    氨基塑料分散体和由其制备的聚氨酯

    公开(公告)号:US4282135A

    公开(公告)日:1981-08-04

    申请号:US124161

    申请日:1980-02-25

    申请人: Kuno Wagner

    发明人: Kuno Wagner

    摘要: A stable dispersion of an aminoplast which is obtained by a process which comprises condensing ammonia hydrazine or an organic compound having a molecular weight of from about 50 to about 400 and which contains at least two groups selected from the group consisting of --NH.sub.2 and --NH-- with benzoquinone or a compound of the formula R--CO--R' in which R and R' stand for the same or different radicals selected from the group consisting of hydrogen C.sub.1 -C.sub.4 alkyl groups which may carry chlorine substituents, C.sub.2 -C.sub.4 -alkenyl groups, C.sub.6 -C.sub.10 aryl groups, C.sub.7 -C.sub.10 aralkyl groups, C.sub.5 -C.sub.10 cycloalkyl group and semi-acetals obtained by reacting said carbonyl compounds with monohydric or dihydric aliphatic alcohols having one to ten carbon atoms in an organic polyhydroxyl compound having a molecular weight of from about 250 to about 14000 as the reaction medium.

    摘要翻译: 通过包括缩合氨肼或分子量为约50至约400的含有至少两个选自-NH 2和-NH的基团的方法得到的氨基塑料的稳定分散体 - 苯醌或式R-CO-R'的化合物,其中R和R'代表相同或不同的选自可以携带氯取代基的C 1 -C 4烷基,C 2 -C 4 - 烯基,C 6 -C 10芳基,C 7 -C 10芳烷基,C 5 -C 10环烷基和半缩醛,其通过使所述羰基化合物与具有1至10个碳原子的一元或二元脂族醇反应而获得,所述有机多羟基化合物具有分子 重量为约250至约14000作为反应介质。

    Novel transparent polyurethane polyurea films for lamination of glazing
materials and their method of production
    99.
    发明授权
    Novel transparent polyurethane polyurea films for lamination of glazing materials and their method of production 失效
    用于层压玻璃材料的新型透明聚氨酯聚脲膜及其生产方法

    公开(公告)号:US4254176A

    公开(公告)日:1981-03-03

    申请号:US947121

    申请日:1978-09-29

    摘要: The present disclosure is concerned with a novel transparent polyurethane polyurea which is particularly suitable for lamination to glass and glasslike transparent plastics. The polymer is the reaction product of high molecular weight diols, optionally low molecular weight diols, dihydroxy carboxylic acids, diisocyanates with only aliphatically and cycloaliphatically bound isocyanates and organic diamines having aliphatically and cycloaliphatically bound primary amino groups. It has specified contents of carboxyl groups and urea groups, and it has a minimum shear modulus at both 20.degree. and 60.degree. C.The present disclosure is also concerned with a process for synthesizing such polymers. A preferred method is to react the diisocyanate and hydroxyl bearing compounds to prepare an isocyanate terminated prepolymer and chain extend with the diamine.Also discussed are the production of film from these polymers by extrusion and solution casting, the production of laminates with glass and glasslike plastics and the laminates so produced. The solution cast or extruded films can be laminated to these substrates by the application of heat and pressure.

    摘要翻译: 本公开涉及一种新型的透明聚氨酯聚脲,其特别适用于层压至玻璃和玻璃状透明塑料。 聚合物是高分子量二醇,任选的低分子量二醇,二羟基羧酸,仅具有脂肪和环状结合的异氰酸酯的二异氰酸酯和具有脂族和环烯键合的伯氨基的有机二胺的反应产物。 具体规定了羧基和脲基的含量,在20℃〜60℃都具有最小的剪切弹性模量。本发明还涉及合成这些聚合物的方法。 优选的方法是使二异氰酸酯和含羟基的化合物反应以制备异氰酸酯封端的预聚物,并且链与二胺延伸。 还讨论了通过挤出和溶液流延从这些聚合物生产膜,生产具有玻璃和玻璃状塑料的层压材料以及如此生产的层压材料。 可以通过施加热和压力将溶液流延或挤出的膜层压到这些基底上。