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    • 1. 发明授权
    • Continous polymerization method of laurolactam and apparatus therefor
    • 月桂内酰胺的连续聚合方法及其设备
    • US5362448A
    • 1994-11-08
    • US134694
    • 1993-10-12
    • Atsuo KawakamiToshiro ShimadaTatsuo TsumiyamaHisaya Yamaguchi
    • Atsuo KawakamiToshiro ShimadaTatsuo TsumiyamaHisaya Yamaguchi
    • B01J19/18C08G69/04C08G69/14C08G69/16C08F2/00F28D7/00
    • C08G69/16B01J19/18B01J2219/00094B01J2219/00159B01J2219/00164B01J2219/182B01J2219/185
    • A continuous polymerization method for laurolactam which has three stages. A prepolymerization process include steps of preliminarily heating laurolactam with 1 to 10% weight of water added, thereafter continuously feeding and passing the laurolactam from the upper part of the lower part of the longitudinal-type polymerization reaction zone, arranging a temperature decreasing gradient of 10.degree. C. or more than the upper part to the lower part directions at a polymerization temperature of 250.degree. and 300.degree. C. in the polymerization zone, and polymerizing the laurolactam under vapor pressure up to a conversion rate of 99.5% or more. A intermediate process has a step of releasing pressure from the prepolymerization product from the prepolymerization process for conversion into an intermediate product at atmospheric pressure. A post polymerization process includes the steps of continuously feeding the intermediate product at atmospheric pressure from the intermediate process in the direction from one end of the lower end to the other lower end of the traverse-type polymerization zone, polymerizing the intermediate product with agitation and air discharge in the presence of inert gas under reduced pressure or atmospheric pressure to a final relative viscosity of .eta..sub..tau. of 1.9 to 3.3.
    • 一种具有三个阶段的月桂内酰胺的连续聚合方法。 预聚合方法包括以下步骤:先加入添加了1-10重量%的水的月桂内酰胺,然后从纵向聚合反应区的下部的上部连续进料和使该十二内酰胺进行流通, 在聚合温度为250℃〜300℃的条件下,在聚合温度为250℃〜300℃的温度范围内,在蒸气压下聚合十二内酰胺,转化率达到99.5%以上。 中间方法具有从预聚合过程中释放预聚合产物的压力以在大气压下转化为中间产物的步骤。 后聚合方法包括以下步骤:在大气压下从中间工艺在从横向聚合区的下端的一端到另一下端的方向连续供给中间产物,在搅拌下聚合中间产物, 在惰性气体存在下,在减压或大气压下进行空气放电至η的最终相对粘度为1.9至3.3。
    • 2. 发明授权
    • Continuous hydrolytic polymerization of laurolactam
    • 月桂内酰胺的连续水解聚合
    • US5283315A
    • 1994-02-01
    • US929404
    • 1992-08-14
    • Atsuo KawakamiToshiro ShimadaTatsuo TsumiyamaHisaya Yamaguchi
    • Atsuo KawakamiToshiro ShimadaTatsuo TsumiyamaHisaya Yamaguchi
    • B01J19/18C08G69/04C08G69/14C08G69/16
    • C08G69/16B01J19/18B01J2219/00094B01J2219/00159B01J2219/00164B01J2219/182B01J2219/185
    • A continuous polymerization method for laurolactam which has three stages. A prepolymerization process include steps of preliminarily heating laurolactam with 1 to 10% weight of water added, thereafter continuously feeding and passing the laurolactam from the upper part of the lower part of the longitudinal-type polymerization reaction zone, arranging a temperature decreasing gradient of 10.degree. C. or more than the upper part to the lower part directions at a polymerization temperature of 250.degree. and 300.degree. C. in the polymerization zone, and polymerizing the laurolactam under vapor pressure up to a conversion rate of 99.5% or more. A intermediate process has a step of releasing pressure from the prepolymerization product from the prepolymerization process for conversion into an intermediate product at atmospheric pressure. A post polymerization process includes the steps of continuously feeding the intermediate product at atmospheric pressure from the intermediate process in the direction from one end of the lower end to the other lower end of the traverse-type polymerization zone, polymerizing the intermediate product with agitation and air discharge in the presence of inert gas under reduced pressure or atmospheric pressure to a final relative viscosity of .eta..sub..zeta. of 1.9 to 3.3.
    • 一种具有三个阶段的月桂内酰胺的连续聚合方法。 预聚合方法包括以下步骤:先加入添加了1-10重量%的水的月桂内酰胺,然后从纵向聚合反应区的下部的上部连续进料和使该十二内酰胺进行流通, 在聚合温度为250度和300℃的聚合温度下,在蒸气压下聚合该月桂内酰胺直到99.5%或更高的转化率。 中间方法具有从预聚合过程中释放预聚合产物的压力以在大气压下转化为中间产物的步骤。 后聚合方法包括以下步骤:在大气压下从中间工艺在从横向聚合区的下端的一端到另一下端的方向连续供给中间产物,在搅拌下聚合中间产物, 在惰性气体存在下,在减压或大气压下进行空气放电至(η)(ζ)的最终相对粘度为1.9至3.3。
    • 6. 发明申请
    • HEAT RESISTANT RESIN BONDED GRINDSTONE
    • 耐热树脂粘结砂光石
    • US20090005488A1
    • 2009-01-01
    • US11871654
    • 2007-10-12
    • Yoshiyuki SatowTatsuo Tsumiyama
    • Yoshiyuki SatowTatsuo Tsumiyama
    • C08L79/08C08K3/08
    • C08K3/04C08K3/08C08L79/08
    • A heat resistant resin bonded grindstone is prepared by heating under pressure a molded composition comprising 20 to 50 vol. % of a polyimide resin powder, 50 to 70 vol. % of a metal powder, and 10 to 30 vol. % of a diamond powder, so that the diamond powder can be dispersed in and supported by a binder phase comprising the polyimide resin powder and the metal powder, in which the polyimide resin powder has been produced from a diamine compound comprising p-phenylenediamine and a mixture of 85 to 97 mol. % of 3,3′,4,4′-biphenyltetracarboxylic acid or its dianhydride and 15 to 3 mol. % of 2,3,3′,4′-biphenyltetracarboxylic acid or its dianhydride.
    • 耐热树脂粘结磨石通过在压力下加热制备,所述模制组合物包含20至50体积% %的聚酰亚胺树脂粉末,50〜70体积% %的金属粉末,10〜30体积% %的金刚石粉末,使得金刚石粉末可以分散并由包含聚酰亚胺树脂粉末和金属粉末的粘结相负载,其中由二苯胺二胺化合物制备聚酰亚胺树脂粉末,所述二胺化合物包括对苯二胺和 85至97mol的混合物。 3,3',4,4'-联苯四羧酸或其二酐的15%,15〜3mol。 %2,3,3',4'-联苯四羧酸或其二酐。
    • 9. 发明授权
    • Connector
    • 连接器
    • US5336540A
    • 1994-08-09
    • US997318
    • 1992-12-28
    • Tetsuo KatoMasahiro KandaTatsuo TsumiyamaSatoru Nakamoto
    • Tetsuo KatoMasahiro KandaTatsuo TsumiyamaSatoru Nakamoto
    • C08L23/26C08L51/06C08L77/00C08L77/06H01R13/46H01R13/533C09L77/10
    • H01R13/46C08L51/06C08L77/00C08L77/06Y10T428/1397
    • A connector comprising a housing comprising a resin composition comprising:(A) from 50 to 95 parts by weight of a semi-aromatic polyamide comprising (A1) an adipate of hexamethylenediamine and (A2) a terephthalate of hexamethylenediamine, where the weight ratio of the adipate of hexamethylenediamine (A1) to the terephthalate of hexamethylenediamine (A2) is from 80/20 to 50/50; and(B) from 5 to 50 parts by weight of a modified polyolefin comprising (B1) a polyolefin copolymer comprising (B11) propylene and (B12) ethylene where the molar ratio of propylene (B11) to ethylene (B12) is from 90/10 to 99/1, the polyolefin copolymer (B1) being graft-modified with (B2) from 0.05 to 5 parts by weight of an .alpha.,.beta.-unsaturated carboxylic acid, an anhydride thereof, or a derivative thereof per 100 parts by weight of the polyolefin copolymer (B1).
    • 一种连接器,包括包含树脂组合物的壳体,所述树脂组合物包含:(A)50至95重量份的半芳族聚酰胺,其包含(A1)己二胺的己二酸酯和(A2)六亚甲基二胺的对苯二甲酸酯,其中重量比 六亚甲基二胺(A1)的己二酸酯与己二胺(A2)的对苯二甲酸酯的摩尔比为80/20〜50/50; 和(B)5至50重量份的改性聚烯烃,其包含(B1)包含(B11)丙烯和(B12)乙烯的聚烯烃共聚物,其中丙烯(B11)与乙烯(B12)的摩尔比为90 / 10〜99/1,聚烯烃共聚物(B1)用(B2)接枝改性为0.05〜5重量份的α,β-不饱和羧酸,其酸酐或其衍生物,每100重量份 的聚烯烃共聚物(B1)。