Copolymers based on ethylenically unsaturated dicarboxylic anhydrides,
long-chain olefins and fluoroolefins
    5.
    发明授权
    Copolymers based on ethylenically unsaturated dicarboxylic anhydrides, long-chain olefins and fluoroolefins 失效
    基于烯键式不饱和二羧酸酐,长链烯烃和氟烯烃的共聚物

    公开(公告)号:US5534604A

    公开(公告)日:1996-07-09

    申请号:US436156

    申请日:1995-05-05

    摘要: Copolymers based on ethylenically unsaturated dicarboxylic anhydrides, long-chain olefins and fluoroolefins Copolymers containing 10 to 60% by weight of bivalent structural units of the formula A ##STR1## wherein R.sup.1 and R.sup.2, independently of one another, are hydrogen or C.sub.1 -C.sub.6 -alkyl,a and b are zero or one and a+b is one,X and Y are identical or different and are the group --N--HR.sup.3,where R.sup.3 is C.sub.1 -C.sub.40 -alkyl, C.sub.3 -C.sub.40 -alkenyl, C.sub.5 -C.sub.20 -cycloalkyl or C.sub.6 -C.sub.18 -aryl, the group --N--(R.sup.3).sub.2,where R.sup.3 are identical or different and have the abovementioned meaning, and/or the group --O--R.sup.4,where R.sup.4 is hydrogen, an alkali metal cation, one equivalent of an alkaline earth metal ion, a cation of the formula H.sub.2 N.sup..sym. (R.sup.3).sub.2 or H.sub.3 N.sup..sym. R.sup.3, C.sub.1 -C.sub.40 -alkyl, C.sub.5 -C.sub.20 -cycloalkyl or C.sub.6 -C.sub.18 -aryl, 30 to 89% by weight of bivalent structural units of the formula B ##STR2## wherein R.sup.5 is hydrogen or C.sub.1 -C.sub.4 -alkyl andR.sub.6 is C.sub.6 -C.sub.40 -alkyl or C.sub.6 -C.sub.18 -aryl, and1 to 20% by weight of bivalent structural units of the formula C ##STR3## wherein n is a number from 6 to 24.The invention also relates to a process for the preparation of these copolymers and to the utilization thereof.

    摘要翻译: 基于烯键式不饱和二羧酸酐,长链烯烃和氟烯烃的共聚物含有10至60重量%的式A的二价结构单元的共聚物(A)其中R 1和R 2彼此独立地为氢或C 1 -C 1-6 - 烷基,a和b为零或一个,a + b为1,X和Y相同或不同,为-N-HR 3基团,其中R 3为C 1 -C 40 - 烷基,C 3 -C 40 - 烯基, C 5 -C 20 - 环烷基或C 6 -C 18 - 芳基,基团-N-(R 3)2,其中R 3相同或不同并具有上述含义,和/或基团-O-R 4,其中R 4是氢, 碱金属阳离子,1当量碱土金属离子,式H2N(+)(R3)2或H3N(+)R3,C1-C40 - 烷基,C5-C20-环烷基或C6-C18-芳基的阳离子 ,30至89重量%的式B的二价结构单元(B)其中R 5是氢或C 1 -C 4烷基,R 6是C 6 -C 40 - 烷基或C 6 -C 18 - 芳基,和1至20 重量%的式C

    Polymers derived from .alpha., .beta.-unsaturated polycarboxylic acids
or anhydrides and n-substituted acrylamides, and use in reducing scale
    6.
    发明授权
    Polymers derived from .alpha., .beta.-unsaturated polycarboxylic acids or anhydrides and n-substituted acrylamides, and use in reducing scale 失效
    衍生自α,β-不饱和多元羧酸或酸酐和n-取代丙烯酰胺的聚合物,用于还原规模

    公开(公告)号:US5164468A

    公开(公告)日:1992-11-17

    申请号:US577905

    申请日:1990-09-05

    摘要: Polymers are disclosed which comprise the reaction product of (A) at least about 60 weight percent of at least one .alpha., .beta.-unsaturated polycarboxylic acid or anhydride; and (B) about 0.5 to about 40 weight percent of at least one acrylamide represented by the formula VI:CH.sup.2 .dbd.C(R.sup.5)C(O)N(R.sup.6)R.sup.7 (VI)wherein R.sup.5, R.sup.6 and R.sup.7 are each independently hydrogen or lower alkyl groups provided that at least one of R.sup.6 and R.sup.7 is a lower hydro-carbyl group, and further provided that the mixture is free of a vinyl sulfonic acid. The monomers react at elevated temperatures to form polycarboxylate scale inhibitors having a number average molecular weight of from about 400 to 10,000. The polymers have particular application in the inhibition of scales during oil field operations, but also may be employed in any environment where deposition of mineral scales is undesirable.

    摘要翻译: 公开了包含(A)至少约60重量%的至少一种α,β-不饱和多元羧酸或酸酐的反应产物的聚合物; 和(B)约0.5至约40重量%的由式VI表示的至少一种丙烯酰胺:CH2 = C(R5)C(O)N(R6)R7(VI)其中R5,R6和R7各自独立地为氢 或低级烷基,条件是R 6和R 7中的至少一个为低级碳代基,并且进一步规定该混合物不含乙烯基磺酸。 单体在升高的温度下反应形成数均分子量为约400至10,000的聚羧酸盐垢垢抑制剂。 这些聚合物在油田操作期间特别适用于抑制鳞屑,但也可用于任何不希望沉积矿物垢的环境中。

    Nitrogenous copolymers, their preparation and use as additives for
improving the pour properties of hydrocarbon middle distillates
    8.
    发明授权
    Nitrogenous copolymers, their preparation and use as additives for improving the pour properties of hydrocarbon middle distillates 失效
    含氮共聚物,它们的制备和用作改进烃中间馏分的倾倒性质的添加剂

    公开(公告)号:US4900332A

    公开(公告)日:1990-02-13

    申请号:US176064

    申请日:1988-03-31

    摘要: Copolymers of average number molecular weight from about 300 to 5,000 comprising recurrent units originating (A) from alpha olefins, (B) from .alpha.,.beta. unsaturated .alpha., .gamma. dicarboxylic compounds, (C) from unsaturated acid esters of 1,2-diols, optionally etherified or esterified, and (D) optionally from acrylic esters, the proportions of the recurrent units being 5-60% for (A), 10-70% for (B), 10-60% for (C) and 0-60% for (D), at least one of recurrent units (A), (B) and/or (C) comprising at least 12 carbon atoms, and at least 10% of the recurrent units of said copolymer being (B) recurrent units of N-substituted imide type. These copolymers form additives useful to lower the pour point of middle distillates, particularly of gas-oils. The use of said additives at a concentration from 0.001 to 2% by weight results in a substantial decrease of the pour point of the treated middle distillates.

    摘要翻译: 平均数分子量为约300至5,000的共聚物包括源自(A)的来自α-烯烃的反应单元,(B)来自α,β不饱和α,γ二羧酸化合物,(C)来自1,2-二醇的不饱和酸酯, 任选地醚化或酯化,和(D)任选地由丙烯酸酯,反应单元的比例对于(A)为5-60%,(B)为10-70%,(C)为10-60% (D)的60%,至少包含至少12个碳原子的复发单元(A),(B)和/或(C)中的至少一种,所述共聚物的反复单元的至少10%是(B) 单位为N-取代酰亚胺型。 这些共聚物形成可用于降低中间馏分,特别是瓦斯油的倾点的添加剂。 浓度为0.001至2重量%的所述添加剂的使用导致经处理的中间馏分的倾点的显着降低。

    Process for the production of colored photographic polymer images
    10.
    发明授权
    Process for the production of colored photographic polymer images 失效
    生产彩色摄影聚合物图像的方法

    公开(公告)号:US4626497A

    公开(公告)日:1986-12-02

    申请号:US738156

    申请日:1985-05-24

    CPC分类号: G03F7/0388

    摘要: A light-sensitive recording material which provides polymer images and contains, on a base, a layer of a photocrosslinkable polymer with an average molecular weight of 10.sup.3 to 10.sup.6, the copolymer having been prepared from(1) a (meth)acrylate, (meth)acrylamide or vinyl ether derivative which contains at least one maleimide group of the formula ##STR1## in which R.sub.1 and R.sub.2 are each alkyl having 1 to 4 carbon atoms, or R.sub.1 and R.sub.2 together with the carbon atoms to which they are bonded form a 5-membered or 6-membered carbocyclic ring,(2) an ethylenically unsaturated comonomer containing acid groups, this comonomer being present in an amount of at least 18 percent by weight, based on the total amount of the comonomers, and, optionally,(3) at least one further ethylenically unsaturated comonomer which differs from the comonomers (1) and (2).

    摘要翻译: 提供聚合物图像并在基底上含有平均分子量为103至106的可光致交联聚合物层的光敏记录材料,该共聚物由(1)(甲基)丙烯酸酯,(甲基)丙烯酸酯, )丙烯酰胺或乙烯基醚衍生物,其包含至少一个式(IMAGE)的马来酰亚胺基团,其中R 1和R 2各自为具有1至4个碳原子的烷基,或者R 1和R 2与它们所键合的碳原子一起形成 5元或6元碳环,(2)含酸基的烯属不饱和共聚单体,该共聚单体的存在量为基于共聚单体总量的至少18重量%,和任选地( 3)至少一种不同于共聚单体(1)和(2)的烯属不饱和共聚单体。