Dianhydride coupled polymer stabilizers
    232.
    发明公开
    Dianhydride coupled polymer stabilizers 失效
    双胍联合聚合物稳定剂

    公开(公告)号:EP0308886A3

    公开(公告)日:1990-11-22

    申请号:EP88115465.2

    申请日:1988-09-21

    Abstract: There are provided polymer stabilizers having the formula
    wherein
    A is an organic tetravalent radical of 2 to 48 carbons,
    D is a divalent radical -C(=O)-N(G)-C(=O)-(CH₂) x -, where x is 0 or 1,
    E is a monovalent radical -(CH₂) x -C(=O)NH-G, where x is 0 or 1,
    d is 0, 1 or 2 and
    G is the residue of a stabilizer group, e.g., a hydrazido-substituted hindered phenol or a hydrazido-­substituted hindered amine light stabilizers The polymer stabilizers are prepared by the reaction of hydrazido-substituted or certain amino-substituted polymer stabilizers and cyclic dianhydrides. The polymer stabilizers of the invention are useful for protecting a large variety of synthetic polymeric organic materials from the degradative effects of heat, light and oxygen. Some of the modifiers are flame retardants and many more metal deactivators in addition to their primary activity.

    Polyhaloaromatic ester flame retardants for polyolefin resins
    234.
    发明公开
    Polyhaloaromatic ester flame retardants for polyolefin resins 失效
    Polyhalogenaromatische Ester als FlammschutzmittelfürPolyolefinharze。

    公开(公告)号:EP0386406A1

    公开(公告)日:1990-09-12

    申请号:EP90100592.6

    申请日:1990-01-12

    CPC classification number: C08K5/17 C08K5/12 C08K5/20 C08L23/02

    Abstract: Flame retardant compositions are provided containing at least one ester of a polyhaloaromatic acid and at least one polyolefin resin. The compositions may also contain one or more brominated and/or chlorinated compounds to provide additional flame retardancy, and other resins or engineering thermoplastics may be blended with the polyolefin. In addition to providing flame retardancy, the polyhaloaromatic acid esters are effective as processing and compatibilizing aids for the resin, and may also function as tackifiers, mold release agents, plastisols, adhesives, plasticizers, polymer additives, and aids in preventing melt fracture.

    Abstract translation: 提供含有至少一种多卤代芳族酸和至少一种聚烯烃树脂的酯的阻燃组合物。 组合物还可以含有一种或多种溴化和/或氯化化合物以提供额外的阻燃性,并且可以将其它树脂或工程热塑性塑料与聚烯烃共混。 除了提供阻燃性之外,多卤代芳族酸酯作为树脂的加工和相容助剂是有效的,并且还可以用作增粘剂,脱模剂,增塑溶胶,粘合剂,增塑剂,聚合物添加剂和防止熔体破裂的辅助材料。

    Purification of alkanesulfonic acids using ozone
    235.
    发明公开
    Purification of alkanesulfonic acids using ozone 失效
    Reinigung vonAlkansulfonsäurenmit Ozon。

    公开(公告)号:EP0373305A1

    公开(公告)日:1990-06-20

    申请号:EP89117220.7

    申请日:1989-09-18

    Inventor: Nosowitz, Martin

    CPC classification number: C07C303/44 C07C309/04

    Abstract: The removal of oxidizable organic impurities which include alkylthiolsulfonate from alkanesulfonic acids by treatment with an ozone containing gas is disclosed. The treated products have improved color and odor and exhibit improved long-term color stability.

    Abstract translation: 公开了通过用含臭氧气体处理从链烷磺酸除去包括烷基硫醇磺酸的可氧化有机杂质。 经处理的产品具有改善的颜色和气味,并表现出改善的长期颜色稳定性。

    Alkyl aryl sulfones and method of preparing the same
    237.
    发明公开
    Alkyl aryl sulfones and method of preparing the same 失效
    烷基芳基砜和Verfahren zu ihrer Herstellung。

    公开(公告)号:EP0337063A1

    公开(公告)日:1989-10-18

    申请号:EP89102131.3

    申请日:1989-02-08

    CPC classification number: C07C317/00 C07B45/04

    Abstract: Alkyl aryl sulfones of the formula R-SO₂-Ar-Y n , wherein Ar is an aryl compound, Y is a substituent on the aryl compound and R is alkyl or cycloalkyl, and liquid mixtures of positional isomers of the same are prepared by reacting an aryl compound of the formula Ar-Y n , with an alkyl sulfonic acid of the formula R-SO₃H and a phosphorus reagent, preferably under heat. Particularly good yields and pure products are obtained using phosphorus pentoxide. Alkyl aryl sulfones produced by this method are a liquid mixture preferably containing at least two positional isomers, wherein no isomer is present in an amount of more than about 50% of the isomer mixture.

    Abstract translation: 式R-SO 2 -Ar-Yn的烷基芳基砜,其中Ar是芳基化合物,Y是芳基化合物上的取代基,R是烷基或环烷基,并且其位置异构体的液体混合物通过使 式Ar-Yn的芳基化合物与式R-SO 3 H的烷基磺酸和磷试剂反应,优选在加热下进行。 使用五氧化二磷获得特别好的产率和纯产品。 通过该方法制备的烷基芳基砜是优选含有至少两种位置异构体的液体混合物,其中异构体不超过异构体混合物的约50%的量存在。

    Automated calorimeter and methods of operating the same
    239.
    发明公开
    Automated calorimeter and methods of operating the same 失效
    自动化Kalorimeter和Verfahren zu dessen Benutzung。

    公开(公告)号:EP0321210A2

    公开(公告)日:1989-06-21

    申请号:EP88311827.5

    申请日:1988-12-14

    Abstract: A fast reacting, automated calorimeter includes a reaction vessel (12) containing a chemically reacting mass, a fluid circulation system (14) containing heat transfer fluid, a portion of the system passing the fluid through an indirect heat exchanger (16) in the reaction vessel (12) for exchanging heat between the fluid and the reacting mass, a flow rate con­troller (24) responsive to variations in temperature of the reacting mass to vary the flow rate of the fluid circulated through the reaction vessel, a flow rate signal generator (32) for generating a signal related to the varying flow rate of the fluid passing through the reaction vessel, and a circuit (34 through 95) responsive at least to the flow rate signal and which generates a heat flow signal related to instantaneous rate of heat exchange between the reacting mass and the fluid. Heat transfer is measured and the reaction is controlled by varying, during the course of the reaction, the flow rate of heat transfer fluid fed into the reaction vessel at a predetermined temperature.

    Abstract translation: 快速反应的自动量热计包括含有化学反应物质的反应容器(12),含有传热流体的流体循环系统(14),系统的一部分使流体通过反应中的间接热交换器(16) 用于在流体和反应物质之间交换热量的容器(12),响应反应物质的温度变化以改变流过反应容器的流体的流速的流量控制器(24),流量信号发生器 (32),用于产生与通过反应容器的流体的变化流量有关的信号;以及电路(34至95),至少响应于流量信号,并产生与瞬时速率相关的热流信号 反应物质与流体之间的热交换。 测量热传递,并且通过在反应过程中改变在预定温度下进料到反应容器中的传热流体的流量来控制反应。

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