Vinyl chloride resin composition with multi-stage impact modifier
    41.
    发明授权
    Vinyl chloride resin composition with multi-stage impact modifier 失效
    具有多级抗冲改性剂的氯乙烯树脂组合物

    公开(公告)号:US4352910A

    公开(公告)日:1982-10-05

    申请号:US313198

    申请日:1981-10-20

    摘要: As an impact modifier copolymer to be blended with a vinyl chloride resin, a multilayer copolymer comprising a hard core polymer containing a relatively small quantity of a conjugated diene, a rubbery inner layer polymer containing a relatively large quantity of a conjugated diene, and an outer layer polymer comprising, for example, a copolymer of styrene and methyl methacrylate which is compatible with a vinyl chloride resin is used, whereby a vinyl chloride resin composition well balanced between impact strength and anti-stress-whitening property can be obtained.

    摘要翻译: 作为与氯乙烯树脂共混的抗冲改性剂共聚物,包含含有相对少量共轭二烯的硬核聚合物的多层共聚物,含有相对大量共轭二烯的橡胶状内层聚合物和外部 使用包含例如与氯乙烯树脂相容的苯乙烯和甲基丙烯酸甲酯的共聚物的层状聚合物,由此可以获得在冲击强度和抗应力增白性之间良好平衡的氯乙烯树脂组合物。

    Injection-molded product of polyglycolic acid and production process
thereof
    42.
    发明授权
    Injection-molded product of polyglycolic acid and production process thereof 失效
    聚乙醇酸注射成型品及其制备方法

    公开(公告)号:US6046251A

    公开(公告)日:2000-04-04

    申请号:US844361

    申请日:1997-04-18

    摘要: An injection-molded product is obtained by injection molding a thermoplastic resin material. The thermoplastic resin material comprises a polyglycolic acid homopolymer or copolymer having a repeating unit represented by the following formula (1): ##STR1## in a proportion not lower than 70 wt. % and a repeating unit derived from at least one cyclic comonomer selected from the group consisting of ethylene oxalate and lactide in a proportion not higher than 30 wt. %, and having the following physical properties: (a) a melt viscosity, n*, measured at a temperature of the melting point, Tm, of the polyglycolic acid homopolymer or copolymer +20.degree. C. and a shear rate of 1,000/sec, of 30-10,000 Pa.multidot.s; (b) a melting point, Tm, of at least 150.degree. C.; (c) a melt enthalpy, .DELTA.Hm, of at least 20 J/g; and (d) a density of at least 1.50 g/cm.sup.3 as measured in an unoriented, crystallized form. The injection-molded product has Izod impact strength, unnotched, 25.degree. C., of at least 20 kJ/m.sup.2, tensile strength of a least 60 MPa, tensile elongation of at least 5%, flexural strength of at least 100 MPa, and flexural modulus of at least 5 GPa, and is obtained by injection molding at an injection temperature ranging from the melting point, Tm, of the homopolymer or copolymer to 255.degree. C.

    摘要翻译: 通过注射成型热塑性树脂材料获得注塑产品。 热塑性树脂材料包括具有由下式(1)表示的重复单元的聚乙醇酸均聚物或共聚物:比例不低于70wt。 %的重复单元和来自选自草酸亚乙酯和丙交酯的至少一种环状共聚单体的重复单元,其比例不高于30wt。 %,具有以下物理性质:(a)在聚乙醇酸均聚物或共聚物+ 20℃的熔点温度Tm下测定的熔融粘度n *,剪切速率为1000 /秒 ,30-10,000元; (b)熔点Tm为至少150℃。 (c)至少20J / g的熔体焓DELTA Hm; 和(d)以非取向的结晶形式测量的至少1.50g / cm 3的密度。 注塑产品具有悬臂梁式冲击强度,25℃,至少20kJ / m 2,拉伸强度至少为60MPa,拉伸伸长率至少为5%,弯曲强度至少为100MPa, 弯曲模量为至少5GPa,并且通过在从均聚物或共聚物的熔点Tm到255℃的注射温度下注射成型获得。

    Polyarylene thioether composition for molding
    43.
    发明授权
    Polyarylene thioether composition for molding 失效
    聚亚芳基硫醚组合物用于成型

    公开(公告)号:US4956499A

    公开(公告)日:1990-09-11

    申请号:US175250

    申请日:1988-03-30

    IPC分类号: C08L81/02

    CPC分类号: C08L81/02

    摘要: Disclosed herein are (1) a composition which is prepared by combining 0.2 to 90 parts by weight of a cross-linked polyarylene thioether having a melt viscosity of 5.times.10.sup.5 to 1.times.10.sup.9 poise, which becomes gel under melting, with 100 parts by weight of a resin consisting of polyarylene thioether, which has a repeating unit of ##STR1## as the main constituent, having a melt viscosity of 10 to 5.times.10.sup.4 poise and (2) a composition of polyarylene thioether for molding, which is prepared by combining not more than 400 parts by weight of a fibrous filler and/or an inorganic filler with 100 parts by weight of the above-mentioned composition (1), is excellent in an antiflash property, is high in a mechanical strength and a thermal stability and is easily processed on melt molding and can easily recycle its molded scraps.

    Method for removing compounds with offensive odor from a gas containing
the same
    45.
    发明授权
    Method for removing compounds with offensive odor from a gas containing the same 失效
    从含有该气体的气体中除去具有异味气味的化合物的方法

    公开(公告)号:US4292285A

    公开(公告)日:1981-09-29

    申请号:US101435

    申请日:1979-12-10

    IPC分类号: B01D53/34

    CPC分类号: B01D53/34

    摘要: A method for removing compounds with offensive odor from an exhaust gas containing the same with a deodorant comprising a mixture of spherical particles of activated carbon and spherical particles of porous carbon impregnated with phosphoric acid or ammonium phosphate placed in a fluidized-bed type deodorizing unit.

    摘要翻译: 从包含活性碳的球形颗粒的混合物和放置在流化床型除臭单元中的磷酸或磷酸铵浸渍的多孔碳的球形颗粒的除臭剂除去含有臭味的废气的方法。

    Poly(ethylene oxalate), product formed of molded therefrom and
production process of poly(ethylene oxalate)
    48.
    发明授权
    Poly(ethylene oxalate), product formed of molded therefrom and production process of poly(ethylene oxalate) 失效
    聚(草酸乙二醇酯),由其形成的产品和聚(草酸乙二醇酯)的生产方法

    公开(公告)号:US5688586A

    公开(公告)日:1997-11-18

    申请号:US667265

    申请日:1996-06-20

    摘要: The invention provides poly(ethylene oxalate) containing recurring units represented by the following formula (1): ##STR1## in a proportion of at least 60 basal mol %, wherein (a) the solution viscosity (.eta..sub.inh) is at least 0.25 dl/g as measured at 30.degree. C. and a polymer concentration of 0.40 g/dl in a 4:1 (by weight) mixed solvent of m-chlorophenol and 1,2,4-trichloro-benzene, (b) the melt viscosity (.eta.*) is at least 30 Pa.s as measured at 190.degree. C. and a shear rate of 1,000/sec, and (c) the density is at least 1.48 g/cm.sup.3 as measured in an amorphous state, various products formed or molded from the poly(ethylene oxalate) and a production process of the poly(ethylene oxalate). The polymer is high-molecular weight and excellent in melt processability, heat resistance, crystalline properties, mechanical properties and the like, and has good degradability in soil.

    摘要翻译: 本发明提供含有下式(1)表示的重复单元的聚(草酸乙二醇酯):至少60基摩尔%的比例的(IMA)(1),其中(a)溶液粘度(η) (b)在间苯二酚和1,2,4-三氯苯的4:1(重量比)混合溶剂中,在30℃下测得的最小值为0.25dl / g,聚合物浓度为0.40g / dl, 在190℃下测得的熔融粘度(η)为至少30Pa.s,剪切速率为1,000 /秒,(c)在非晶状态下测得的密度至少为1.48g / cm 3, 由聚(草酸乙二醇酯)形成或模塑的各种产品和聚(草酸乙二醇酯)的生产方法。 该聚合物具有高分子量,熔融加工性,耐热性,结晶性,机械性能等优异性,在土壤中具有良好的降解性。

    Aromatic thioether ketone/thioether sulfone copolymer products
    49.
    发明授权
    Aromatic thioether ketone/thioether sulfone copolymer products 失效
    芳香族硫醚酮/硫醚砜共聚物产品

    公开(公告)号:US5408014A

    公开(公告)日:1995-04-18

    申请号:US282586

    申请日:1994-07-29

    摘要: Disclosed herein are an aromatic thioether ketone/thioether sulfone random copolymer comprising phenylene thioether ketone recurring units (I) and phenylene thioether sulfone recurring units (II), (a) the compositional ratio (I:II) of the recurring units (I) to the recurring units (II) ranging from 98:2 to 65:35, (b) the solution viscosity (.eta..sub.inh) being at least 0.3 dl/g, (c) the melt crystallization time (.tau.) being at least 3 minutes, (d) the melting point (Tm) being 300.degree.-350.degree. C., (e) the glass transition temperature being at least 125.degree. C., (f) the retention (400.degree. C./20 min) of melt crystallization enthalpy (.DELTA.Hmc) being at least 60%, and (g) the average particle size being at least 0.1 mm, and the production process thereof.

    摘要翻译: 本文公开了包含亚苯基硫醚酮重复单元(I)和亚苯基硫醚砜重复单元(II)的芳香族硫醚酮/硫醚砜无规共聚物,(a)重复单元(I)至(II)的组成比(I:II) 重复单元(II)的范围为98:2至65:35,(b)溶液粘度(eta inh)为至少0.3dl / g,(c)熔融结晶时间(τ)为至少3分钟, (d)熔点(Tm)为300〜-350℃,(e)玻璃化转变温度为至少125℃,(f)熔融结晶的保留时间(400℃/ 20分钟) 焓(DELTA Hmc)为至少60%,(g)平均粒径为0.1mm以上,及其制造方法。

    Process for preparing polyarylene thioether having thiol/thiolate end
group concentration of 10 micro mole/g or less
    50.
    发明授权
    Process for preparing polyarylene thioether having thiol/thiolate end group concentration of 10 micro mole/g or less 失效
    具有硫醇/硫醇基端基浓度为10微摩尔/克以下的聚亚芳基硫醚的方法

    公开(公告)号:US4761468A

    公开(公告)日:1988-08-02

    申请号:US015346

    申请日:1987-02-17

    IPC分类号: C08G75/02 C08G75/06 C08G75/14

    CPC分类号: C08G75/0254 C08G75/0245

    摘要: In a process for producing a polyarylene thioether having high stability by dehalogenation/sulfurization reaction of an alkali metal (M) sulfide such as sodium sulfide and a dihaloaromatic compound such as paradichlorobenzene in a polar organic solvent, the haloaromatic compound is used excessively in an appropriate range rather than the alkali metal sulfide and the latter stage of the reaction or all period of the reaction is conducted under a powerful stirring condition to a certain degree to obtain the polyarylene thioether wherein the concentration of --SM or --SH groups of the polymer terminal is lowered. The polyarylene thioether thus obtained suppresses the coloration in the processing with an apparatus made of ferrous material such as extruder.

    摘要翻译: 在通过碱金属(M)硫化物如硫化钠和二卤代芳族化合物如对二氯苯在极性有机溶剂中的脱卤/硫化反应具有高稳定性的聚亚芳基硫醚的制备方法中,卤代芳族化合物过量地用于适当的 范围而不是碱金属硫化物,反应的后期或反应的所有时间段在强力搅拌条件下进行一定程度,得到聚亚芳基硫醚,其中聚合物末端的-SM或-SH基团的浓度 被降低 由此获得的聚亚芳基硫醚通过用诸如挤出机的铁质材料制成的装置抑制加工中的着色。