Process for the preparation of fluorochlorohydrocarbon-free, low-density
polyurethan soft foams and soft elastic polyurethan molding foams and
polyisocyanate mixtures modified with urethan groups on
diphenylmethane-diisocyanate base
    2.
    发明授权
    Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base 失效
    用于制备氟代氯代烃,低密度聚氨酯软泡沫和柔性弹性聚氨酯成型泡沫的方法和在二苯基甲烷二异氰酸酯基础上用氨基甲酸酯基团改性的多异氰酸酯混合物

    公开(公告)号:US5374667A

    公开(公告)日:1994-12-20

    申请号:US24589

    申请日:1993-03-01

    摘要: The invention provides a method for the preparation of fluorochlorohydrocarbon(FCHC)-free polyurethane soft (molded) foam materials with low density, by reactingA) liquid polyisocyanate mixtures containing bound urethane groups, containing 22 to 30 weight percent of NCO groups, which in turn are prepared by reacting a mixture of diphenylmethane-diisocyanate and polyphenyl-polymethylene-polyisocyanates (raw MDI) with at least one polyoxypropylene-polyoxyethylene-polyol with a functionality between 2.5 and 3.5, a hydroxyl number between 50 and 90 and a polymerized ethylene oxide group concentration ranging from more than 30 to less than 50 weight percent, relative to the weight of the polymerized ethylene oxide and 1,2 propylene oxide groups, or by reacting of 4,4'diphenylmethane-diisocyanate (MDI) or and MDI-isomeric mixture with the above-named polyoxypropylene-polyoxyethylene-polyol to an NCO-group-containing quasi-prepolymer, and diluting this quasi-prepolymer with raw-MDI, withB) higher-molecular polyhydroxyl compounds and, if appropriateC) low-molecular chain lengthening and/or cross-linkage-promoting materialsD) propellants,E) catalysts as well as if appropriate,F) auxiliary materials and/or additives, as well as the polyisocyanate mixtures modified with urethane groups (A) which are utilizable in accordance with the process of the invention.

    摘要翻译: 本发明提供了一种通过使含有22-30%(重量)NCO基团的结合的氨基甲酸酯基团的液体多异氰酸酯混合物反应来制备低密度的氟氯烃(FCHC) - 软质(模塑)泡沫材料的方法, 通过使二苯基甲烷 - 二异氰酸酯和聚苯基 - 多亚甲基多异氰酸酯(原MDI)与至少一种官能度在2.5和3.5之间,羟基数在50和90之间的聚氧化丙烯 - 聚氧乙烯 - 多元醇与聚合的环氧乙烷 相对于聚合的环氧乙烷和1,2-环氧丙烷基团的重量,或通过4,4'-二苯基甲烷二异氰酸酯(MDI)或MDI异构体(MDI)的反应,组浓度范围从大于30至小于50重量% 与上述聚氧丙烯 - 聚氧乙烯 - 多元醇的混合物与含有NCO基的准预聚物混合,并用B-MDI稀释该准预聚物,B) 高分子量多羟基化合物,如果合适C)低分子链延长和/或交联促进材料D)推进剂,E)催化剂以及适当的F)辅助材料和/或添加剂,以及 用氨基甲酸酯基团(A)改性的多异氰酸酯混合物,其可根据本发明的方法使用。

    Preparation of flexible, soft polyurethane foams having viscoelastic,
structure-borne soundproofing properties, and polyoxyalkylene-polyol
mixtures which can be used for this purpose
    4.
    发明授权
    Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose 失效
    制备具有粘弹性,结构隔音性能的柔性,软质聚氨酯泡沫,以及可用于此目的的聚氧化烯 - 多元醇混合物

    公开(公告)号:US5420170A

    公开(公告)日:1995-05-30

    申请号:US619265

    申请日:1990-11-28

    IPC分类号: C08G18/48 C08G18/66

    摘要: The present invention relates to a process for the preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties in a temperature range of from -20.degree. C. to +80.degree. C. by reactinga) a polyoxyalkylene-polyol mixture containingai) block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9% by weight of terminal ethylene oxide units, based on the weight of the polyoxypropylene units, prepared by anionic polymerization, at elevated temperatures, of 1,2-propyleneoxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8, comprising water and glycerol and/or trimethylolpropane, and polymerization of acylene oxide onto the resultant polyoxypropylene adduct, andaii) one or more difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85% by weight of oxyethylene units, based on the total weight of polymerized alkylene oxide units, and having a hydroxyl number of from 20 to 80, andb) if desired low-molecular-weight chain extenders withc) organic and/or modified organic polyisocyanates in the presence ofd) catalysts,e) blowing agents, preferably water, and, if desired,f) auxiliaries and/or additives,and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.

    摘要翻译: 本发明涉及一种制备柔软的软质聚氨酯泡沫的方法,该泡沫在-20℃至+ 80℃的温度范围内具有粘弹性结构的隔音性能,通过使a)聚氧化烯 - 多元醇混合物 含有ai)嵌段聚氧丙烯 - 聚氧乙烯 - 多元醇混合物,羟基数为14至65,并含有2至9重量%的末端环氧乙烷单元,基于通过阴离子聚合制备的聚氧丙烯单元的重量,在升高的 温度,1,2-环氧丙烷至平均官能度为2.3至2.8的引发剂分子混合物,包含水和甘油和/或三羟甲基丙烷,以及将芳族氧化物聚合到所得聚氧丙烯加合物上,以及aii)一种或多种双官能 和/或含有60至85重量%的氧化乙烯单元的三官能聚氧丙烯 - 聚氧乙烯 - 多元醇,基于聚合的Al的总重量 环氧乙烷单元,羟值为20至80,和b)如果需要,在d)催化剂存在下,c)有机和/或改性有机多异氰酸酯的低分子增链剂,e)发泡剂, 如果需要,f)助剂和/或添加剂,以及可用于该目的的聚氧化烯 - 多元醇混合物(a)。

    Novel copolymers and their use as auxiliaries and/or additives in
formulations for the preparation of polyisocyanate addition
polymerization products
    6.
    发明授权
    Novel copolymers and their use as auxiliaries and/or additives in formulations for the preparation of polyisocyanate addition polymerization products 失效
    新型共聚物及其用作制备聚异氰酸酯添加聚合产物的辅助剂和/或添加剂

    公开(公告)号:US5059632A

    公开(公告)日:1991-10-22

    申请号:US430607

    申请日:1989-11-01

    摘要: This invention deals with novel copolymers having K values of from 5 to 80 prepared by the radical polymerization of:(A) 20 to 80 weight percent, based on the total weight of (A) and (B), of at least one olefinic unsaturated polyoxyalkylene alcohol adduct or a polyester alcohol adduct;(B) 80 to 20 weight percent, based on the total weight of (A) and (B), of at least one vinyl monomer selected from the group consisting of N-vinylformamide, N-vinyl-2-pyrrolidone, N-vinyl-piperidone, N-vinyl-2-caprolactam, N-vinylimidazole, N-vinyl-2-ethylene-urea and N-vinyl-2-propylene-urea;(C) 0.05 to 40 parts by weight of glycidyl acrylate and/or glycidyl methacrylate;(D) 0 to 10 parts by weight of at least one .alpha.,.beta.-monoolefinic unsaturated acid; and(E) 0 to 30 parts by weight of at least one olefinic unsaturated carboxylic acid amide and or carboxylic acid ester and/or styrene;whereby the parts by weight of (C), (D) and (E) are each based on 100 parts by weight of monomers (A) and (B).The copolymers are used as auxiliaries and/or additives, for example, as dispersing agents and/or emulsification agents or as additives for improving the mechanical properties in formulations for the preparation of polyisocyanate addition polymerization products.

    摘要翻译: 本发明涉及通过以下自由基聚合制备的K值为5至80的新型共聚物:(A)基于(A)和(B)的总重量为20至80重量%的至少一种烯属不饱和 聚氧化烯醇加合物或聚酯醇加合物; (B)基于(A)和(B)的总重量的80至20重量%的至少一种乙烯基单体,其选自N-乙烯基甲酰胺,N-乙烯基-2-吡咯烷酮,N-乙烯基 哌啶酮,N-乙烯基-2-己内酰胺,N-乙烯基咪唑,N-乙烯基-2-亚乙基脲和N-乙烯基-2-丙烯 - 脲; (C)0.05〜40重量份丙烯酸缩水甘油酯和/或甲基丙烯酸缩水甘油酯; (D)0至10重量份的至少一种α,β-单烯烃不饱和酸; 和(E)0至30重量份的至少一种烯属不饱和羧酸酰胺和/或羧酸酯和/或苯乙烯; (C),(D)和(E)的重量份分别为100重量份的单体(A)和(B)。 共聚物用作助剂和/或添加剂,例如作为分散剂和/或乳化剂或用作改进用于制备多异氰酸酯加成聚合产物的配方中的机械性能的添加剂。

    Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols
containing hydroxyl groups
    8.
    发明授权
    Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols containing hydroxyl groups 失效
    含有羟基的聚氧丙烯 - 多元醇和聚氧丙烯 - 聚氧乙烯 - 多元醇

    公开(公告)号:US5340916A

    公开(公告)日:1994-08-23

    申请号:US966228

    申请日:1992-10-26

    摘要: The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reactinga) a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPa.multidot.s at 23.degree. C. and prepared by anionic polymerization of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight,a1) from 40 to 80% by weight of a hexanetetrol,a2) from 1 to 30% by weight of a hexanetriol,a3) from 0 to 35% by weight of glycerol anda4) from 0 to 15% by weight of sorbitol or mannitol, or a mixture thereof,b) optionally, a low-molecular-weight chain extender and/or crosslinking agent withc) an organic, modified or unmodified polyisocyanate; in the presence ofd) a blowing agent,e) a catalyst and, optionally,f) assistants and/or additives, and novel polyoxypropylene-polyols and polyoxyethylene-polyoxypropylene-polyols which can be used for this purpose.

    摘要翻译: 本发明涉及通过使a)具有仲羟基的聚氧丙烯或聚氧乙烯 - 聚氧丙烯 - 多元醇,具有官能度的官能度的方法,通过多异氰酸酯加聚方法制备含有氨基甲酸酯基团或聚氨酯和异氰脲酸酯基团的硬质泡沫的方法, 3.5至4.3,羟值为350至650,在23℃下的粘度为500至2500mPax,并通过将1,2-环氧丙烷或环氧乙烷和1,2-环氧丙烷阴离子聚合制备到 包含基于总重量的起始分子混合物,a1)为40至80重量%的己烷四醇,a2)1至30重量%的己烷三醇,a3)0至35重量%的甘油和 a4)0至15重量%的山梨糖醇或甘露醇或其混合物,b)任选的低分子量增链剂和/或交联剂,c)有机,改性或未改性的多异氰酸酯; 在d)发泡剂的存在下,e)可以用于此目的的催化剂和任选的f)助剂和/或添加剂,以及新的聚氧丙烯 - 多元醇和聚氧乙烯 - 聚氧丙烯 - 多元醇。

    Apparatus for manipulating rod-shaped articles of the tobacco processing
industry
    10.
    发明授权
    Apparatus for manipulating rod-shaped articles of the tobacco processing industry 失效
    用于操纵烟草加工业的棒状制品的装置

    公开(公告)号:US4781204A

    公开(公告)日:1988-11-01

    申请号:US27486

    申请日:1987-03-18

    IPC分类号: A24C5/32 A24C5/60 B23K26/08

    CPC分类号: B23K26/0823 A24C5/606

    摘要: Filter cigarettes which are transported sideways at the periphery of a rotating drum-shaped conveyor are engaged by successive rolling surfaces of a pair of coaxial rotary rolling members which rotate at the peripheral speed of the conveyor but in the opposite direction so that the cigarettes are caused to roll about their respective axes and cease to advance with the conveyor. The periphery of the conveyor is formed with flutes which receive the freshly rolled cigarettes, and the rolling of cigarettes is abruptly terminated by arresting members which orbit adjacent the path of movement of the cigarettes at the peripheral speed of the conveyor and in the same direction. A laser is used to make holes in successive cigarettes while the cigarettes roll about their respective axes.

    摘要翻译: 在旋转的鼓形输送机的周边侧面运输的过滤香烟由一对同轴旋转滚动构件的连续滚动表面接合,所述滚动表面以传送器的圆周速度旋转,但是沿相反的方向旋转,从而引起香烟 绕其各自的轴线滚动并停止与输送机一起前进。 输送机的周边形成有容纳新鲜卷起的香烟的槽纹,并且通过阻止沿着输送机的圆周速度和相同方向在香烟运动路径附近轨道运动的构件,香烟的滚动突然终止。 激光用于连续卷烟中的孔,而香烟围绕它们各自的轴线滚动。