Poly (meth) acrylamides with improved color stability under thermal
stress
    4.
    发明授权
    Poly (meth) acrylamides with improved color stability under thermal stress 失效
    聚(甲基)丙烯酰亚胺,在热应力下具有改善的颜色稳定性

    公开(公告)号:US5837780A

    公开(公告)日:1998-11-17

    申请号:US759131

    申请日:1996-12-02

    CPC分类号: C08K3/32 C08F8/48

    摘要: Molding compositions MC having a reduced tendency to yellow with thermal stress which consist of a polymer PM containing units of formula I: ##STR1## blending from 0.005-1 wt % of at least one reducing inorganic phosphorus compound IP selected from the group consisting of phosphinic and phosphonic acid and its alkali metal, alkaline-earth metal, a aluminum and ammonium salts, wherein the ammonium ion can be substituted with up to four C.sub.1 -C.sub.4 alkyl and/or C.sub.5 -C.sub.8 cycloalkyl groups, with the polymer PM after conclusion of the imidation reaction.

    摘要翻译: 具有降低的热应力黄色趋势的成型组合物MC由含有式I单元的聚合物PM组成:选自由次膦酸和膦酸及其碱金属,碱土金属组成的组的无机磷化合物 金属,铝和铵盐,其中铵离子可被至多四个C 1 -C 4烷基和/或C 5 -C 8环烷基取代,与酰亚胺化反应结束后的聚合物PM反应。

    Lubricant additives
    5.
    发明授权
    Lubricant additives 失效
    润滑添加剂

    公开(公告)号:US5756433A

    公开(公告)日:1998-05-26

    申请号:US652276

    申请日:1996-05-22

    摘要: A composition comprising a carrier and a comb copolymer made by copolymerizing a polyalkyl (meth)acrylate macromonomer, present in an amount of 10-90 wt %, with the following monomers in a total amount of 90-10 wt %: (a) 0-90 wt % of C.sub.6 -C.sub.30 alkyl (meth)acrylates, (b) 0-60 wt % of nonfunctionalized comonomers selected form the group consisting of C.sub.1 -C.sub.5 alkyl (meth)acrylates, styrene, C.sub.1 -C.sub.4 alkyl styrenes, and vinyl esters of C.sub.2 -C.sub.12 carboxylic acids, and (c) 0-40 wt % of functionalized comonomers selected from the group consisting of functionalized (meth)acrylic acid esters and amides, and vinyl heterocyclic compounds, all of the above amounts based on the weight of the graft copolymer. The composition is especially useful as a lubricating oil additive with viscosity index-improving effect.

    摘要翻译: 通过以10-90重量%的量聚合(甲基)丙烯酸烷基酯大分子单体与总量为90-10重量%的以下单体共聚制得的载体和梳状共聚物组合物:(a)0 -90重量%的(甲基)丙烯酸C 6 -C 30烷基酯,(b)0-60重量%的选自以下的非官能化共聚单体:(甲基)丙烯酸C 1 -C 5烷基酯,苯乙烯,C 1 -C 4烷基苯乙烯和乙烯基 C2-C12羧酸的酯,和(c)0-40重量%的选自官能化的(甲基)丙烯酸酯和酰胺的官能化共聚单体和乙烯基杂环化合物,所有上述量基于重量 的接枝共聚物。 该组合物特别适用于具有粘度指数提高效果的润滑油添加剂。

    Dermal therapeutic system made of a meltable poly (meth) acrylate
    7.
    发明授权
    Dermal therapeutic system made of a meltable poly (meth) acrylate 失效
    由可熔融的聚(甲基)丙烯酸酯混合物制成的皮肤治疗系统

    公开(公告)号:US5730999A

    公开(公告)日:1998-03-24

    申请号:US650025

    申请日:1996-05-17

    摘要: A dermal therapeutic system which exhibits a prolonged release of a drug comprising at least one pharmaceutical agent combined with poly(meth)acrylates in the form of at least one layer of the therapeutic system, the poly(meth)acrylates being a mixture, which is produced from a melt, comprising (1) at least one (meth)acrylic polymer containing functional groups and (2) at least one (meth)acrylic polymer which regulates the flow behavior of the poly(meth)acrylate mixture and which contains no functional groups or only insignificant amounts of functional groups.

    摘要翻译: 显示药物延长释放的真皮治疗系统,其包含至少一种药物剂,其与至少一层治疗系统形式的聚(甲基)丙烯酸酯组合,所述聚(甲基)丙烯酸酯是混合物,其为 由(1)至少一种含有官能团的(甲基)丙烯酸聚合物和(2)调节聚(甲基)丙烯酸酯混合物的流动行为的至少一种(甲基)丙烯酸类聚合物,其不含功能性 组或仅有微量的官能团。

    Color-stable, weather-, and impact-resistant molding compositions based
on polymethylmethacrylate, and process for production thereof
    8.
    发明授权
    Color-stable, weather-, and impact-resistant molding compositions based on polymethylmethacrylate, and process for production thereof 失效
    基于聚甲基丙烯酸甲酯的耐色,耐候,耐冲击的成型组合物及其生产方法

    公开(公告)号:US5726245A

    公开(公告)日:1998-03-10

    申请号:US753682

    申请日:1996-11-27

    CPC分类号: C08K3/32 Y10S525/932

    摘要: Highly transparent, impact-resistant molding compositions based on polymethyl methacrylate (PMMA), having excellent color stability both during processing at high temperatures, as well as when under thermal stress, as a result of multiple processing with simultaneously high weathering stability and stability of the optical characteristics with the effect of water. Preparation is carried out according to a multi-step extruder process, wherein an extruder for the melt coagulation and one for the compounding are connected in series. Addition of small quantities of reducing inorganic phosphorous compounds at a later stage provides prolonged effectiveness.

    摘要翻译: 基于聚甲基丙烯酸甲酯(PMMA)的高度透明,耐冲击的成型组合物,在高温加工期间具有优异的颜色稳定性,以及在热应力下,作为多次加工的结果,具有同时高的耐候稳定性和稳定性 光学特性与水的作用。 根据多步骤挤出机方法进行制备,其中用于熔融凝结的挤出机和用于混合的挤出机串联连接。 在稍后阶段添加少量还原性无机磷化合物可提供长时间的有效性。

    Stable enzymatic aqueous liquid composition for the production of leather
    9.
    发明授权
    Stable enzymatic aqueous liquid composition for the production of leather 失效
    稳定的酶水性液体组合物用于生产皮革

    公开(公告)号:US5710040A

    公开(公告)日:1998-01-20

    申请号:US600735

    申请日:1996-02-13

    CPC分类号: C14C1/00

    摘要: An aqueous liquid composition containing one or more enzymatic active substances and at least 10 wt % to a maximum of (100-x) wt % molasses, wherein x is the fraction of enzymatic active substances in wt % and wherein x is a value from 0.001 to 90, which is useful for the production of leather in the beamhouse, to improve rehydration and dirt removal while soaking, to improve the loosening of hair and to inhibit swelling during liming, and to improve the cleaning of the surface of the skin during bating.

    摘要翻译: 含有一种或多种酶活性物质和至少10重量%至最大(100-x)重量%糖蜜的含水液体组合物,其中x是以重量%计的酶活性物质的分数,其中x为0.001 至90,其可用于在梁屋中生产皮革,以在浸泡期间改善补液和除污,以改善头发的松动并抑制跛行期间的肿胀,以及改善皮肤表面的清洁 。

    Thermoplastic material for drug coatings which dissolve in intestinal
juices
    10.
    发明授权
    Thermoplastic material for drug coatings which dissolve in intestinal juices 失效
    溶于肠液的药物涂料用热塑性材料

    公开(公告)号:US5705189A

    公开(公告)日:1998-01-06

    申请号:US521738

    申请日:1995-08-31

    CPC分类号: A61K9/2846 A61K9/4816

    摘要: Thermoplastic materials which comprise a copolymer of (A) 16 to 40 wt % of acrylic and/or methacrylic acid; (B) 30 to 80 wt % of methyl acrylate; and (C) 0 to 40 wt % of another alkyl ester of acrylic and/or methacrylic acid and perhaps conventional auxiliaries for drug coatings are suitable for the production of drug coatings which are soluble in intestinal juices, such as tablet coatings, dies, films, capsules, or multipart dosage units.

    摘要翻译: 包含(A)16〜40重量%的丙烯酸和/或甲基丙烯酸的共聚物的热塑性材料; (B)30〜80重量%的丙烯酸甲酯; 和(C)0至40重量%的丙烯酸和/或甲基丙烯酸的另一烷基酯以及可能用于药物涂料的常规助剂适用于生产可溶于肠液的药物包衣,例如片剂包衣,模具,薄膜 ,胶囊或多剂量单位。