Resin composition for agricultural film
    361.
    发明授权
    Resin composition for agricultural film 有权
    农膜用树脂组合物

    公开(公告)号:US06555603B1

    公开(公告)日:2003-04-29

    申请号:US09869955

    申请日:2001-08-30

    Abstract: A resin composition for agricultural film, which composition contains 100 parts by mass of a synthetic resin (A) and the below-specified amount of a polymer stabilizer (B). Polymer stabilizer (B): an adduct obtained by adding a compound (b1) represented by the following formula (I) to a polymer (b2) having a molecular weight of at least 300: (wherein n represents an integer of 1-4; X represents —O— or —NH—; and R represents a hydrogen atom, a C1-C20 aliphatic acyl group, a C1-C20 aliphatic polyacyl group, a C1-C20 aromatic acyl group, or a C1-C20 aromatic polyacyl group). Amount of polymer stabilizer (B): such an amount that makes the amount of nitrogen atoms contained in the polymer stabilizer (B) 0.0005-1 part by mass.

    Abstract translation: 一种农用薄膜用树脂组合物,其组合物含有100质量份合成树脂(A)和低于规定量的聚合物稳定剂(B)。聚合物稳定剂(B):将化合物(b1) )表示为分子量为300以上的聚合物(b2)(式中,n表示1-4的整数,X表示-O-或-NH-,R表示氢原子) 原子,C1-C20脂族酰基,C1-C20脂族聚酰基,C1-C20芳族酰基或C1-C20芳族聚酰基)。聚合物稳定剂(B)的量:使 聚合物稳定剂(B)中所含的氮原子的量为0.0005〜1质量份。

    Olefin polymer composition having low smoke generation and fiber, film and fabric prepared therefrom
    362.
    发明授权
    Olefin polymer composition having low smoke generation and fiber, film and fabric prepared therefrom 失效
    具有低烟产生的烯烃聚合物组合物和由其制备的纤维,膜和织物

    公开(公告)号:US06172153B2

    公开(公告)日:2001-01-09

    申请号:US09097281

    申请日:1998-06-12

    Abstract: A polymer composition and fiber, film and fabric prepared therefrom. The composition contains (i) an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, the metallic salt of a saturated or unsaturated being present in a maximum amount of 200 ppm, a stabilizer system containing (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilo[triethyl-tris(3,3′,5,5′-tetra-tert.butyl-1, 1-biphenyl-2,2′-diyl)phosphite] and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber, film or fabric which includes (A) incorporating the above additives into an olefin polymer, thereby producing a stabilized polyolefin polymer; and (B) extruding the stabilized olefin polymer through a die, thereby producing a olefin polymer fiber or film. A woven or non-woven fabric may be prepared from the olefin polymer fiber or film.

    Abstract translation: 聚合物组合物和由其制备的纤维,膜和织物。 该组合物含有(i)除饱和或不饱和脂肪酸的金属盐以外的酸中和剂,(ii)加工助剂,其包含饱和或不饱和脂肪酸的金属盐,饱和或不饱和脂肪酸的金属盐 存在最大量为200ppm的稳定剂体系,其包含(a)选自2,2',2“ - 次氮基[三乙基 - 三(3,3',5,5'-四 - 叔丁基-1,1'-联苯-2,2'-二基)亚磷酸酯]和三(2,4-二叔丁基苯基)亚磷酸酯; 和(b)N,N-二烷基羟胺。 还公开了一种制备聚烯烃纤维,膜或织物的方法,其包括(A)将上述添加剂并入烯烃聚合物中,从而制备稳定的聚烯烃聚合物; 和(B)通过模头挤出稳定的烯烃聚合物,由此制备烯烃聚合物纤维或膜。 编织或无纺布可以由烯烃聚合物纤维或薄膜制备。

    Heat resistant resin composition comprising polymers of N-(substituted)
maleimides and improved process for the preparation of said maleimides
    365.
    发明授权
    Heat resistant resin composition comprising polymers of N-(substituted) maleimides and improved process for the preparation of said maleimides 失效
    耐热树脂组合物包含N-(取代)马来酰亚胺的聚合物和改进的制备所述马来酰亚胺的方法

    公开(公告)号:US5314950A

    公开(公告)日:1994-05-24

    申请号:US7225

    申请日:1993-01-22

    CPC classification number: C08L35/00 C08L35/06 C08L51/04 C08L2201/08

    Abstract: Novel resin compositions are provided which possess excellent heat resistance and thermal color stability, alone, or in admixture with bulk resins. The claimed resin compositions comprise homo- and/or copolymers of N-(2,3-dimethylphenyl) maleimide, alone, or in further combination with resins composed of copolymer components, such as vinyl copolymers and rubber-grafted vinyl copolymer resins. The resin compositions have improved heat resistance and produce molded articles with desirably light colors. Also provided is an improved process to make maleimide monomers by using selected polar solvents whereby the amount of uncyclizable trans-amic acid is held at tolerable levels and the desired maleimide is obtained in high yields, free from by-products.

    Abstract translation: 提供了新的树脂组合物,它们单独具有优异的耐热性和热色稳定性,或与本体树脂混合。 所要求保护的树脂组合物包含单独的N-(2,3-二甲基苯基)马来酰亚胺或与由共聚物组分如乙烯基共聚物和橡胶接枝的乙烯基共聚物树脂组成的树脂的进一步组合的均聚物和/或共聚物。 树脂组合物具有改善的耐热性,并且生产具有期望的浅色的模塑制品。 还提供了通过使用选择的极性溶剂制备马来酰亚胺单体的改进方法,由此使可循环的反式氨基酸的量保持在可耐受水平,并且以高产率获得所需的马来酰亚胺,不含副产物。

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