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    • 1. 发明授权
    • Impact strength modifiers for thermoplastic polyester and thermoplastic polyester resin composition containing the same
    • 含有该热塑性聚酯和热塑性聚酯树脂组合物的冲击强度改性剂
    • US08252867B2
    • 2012-08-28
    • US12812088
    • 2008-12-24
    • Yoon-Ho KimGeon-Soo KimSang-Il Nam
    • Yoon-Ho KimGeon-Soo KimSang-Il Nam
    • C08L55/00C08L51/04C08L67/00
    • C08F285/00C08L51/04C08L67/02Y10T428/25C08F212/08C08F220/18C08L2666/24
    • The present invention relates to an impact strength modifier for thermoplastic polyester resin and a thermoplastic polyester resin composition containing the same, more precisely an impact strength modifier for thermoplastic polyester resin prepared by graft-polymerization of a) 20-80 weight % of multilayered rubber latex in which the ratio of particle diameter (Pb/Pa) of an inner layer (Pa) to outer layer is 1.05-1.5, and glass transition temperature of the inner layer or the outer layer is up to −30° C.; and b) 20-80 weight % of vinyl monomer. According to the present invention, a thermoplastic polyester resin composition having excellent transparency and improved impact strength can be provided by containing an impact strength modifier for thermoplastic polyester resin having multilayered structure in which content of rubber latex, glass transition temperature, particle diameter and refraction index are regulated.
    • 本发明涉及一种热塑性聚酯树脂的冲击强度改性剂和含有该热塑性聚酯树脂的热塑性聚酯树脂组合物,更准确地说,是一种热塑性聚酯树脂的冲击强度改性剂,其通过以下方法制备:a)20-80重量%的多层橡胶胶乳 其中内层(Pa)与外层的粒径(Pb / Pa)的比率为1.05〜1.5,内层或外层的玻璃化转变温度高达-30℃。 和b)20-80重量%的乙烯基单体。 根据本发明,通过含有橡胶胶乳含量,玻璃化转变温度,粒径和折射率的多层结构的热塑性聚酯树脂的冲击强度改性剂,可以提供透明性和冲击强度优异的热塑性聚酯树脂组合物 受到监管。
    • 3. 发明申请
    • IMPACT STRENGTH MODIFIERS FOR THERMOPLASTIC POLYESTER AND THERMOPLASTIC POLYESTER RESIN COMPOSITION CONTAINING THE SAME
    • 热塑性聚酯和含有它的热塑性聚酯树脂组合物的冲击强度改性剂
    • US20100292390A1
    • 2010-11-18
    • US12812088
    • 2008-12-24
    • Yoon-Ho KimGeon-Soo KimSang-Il Nam
    • Yoon-Ho KimGeon-Soo KimSang-Il Nam
    • C08L51/04B32B5/16
    • C08F285/00C08L51/04C08L67/02Y10T428/25C08F212/08C08F220/18C08L2666/24
    • The present invention relates to an impact strength modifier for thermoplastic polyester resin and a thermoplastic polyester resin composition containing the same, more precisely an impact strength modifier for thermoplastic polyester resin prepared by graft-polymerization of a) 20-80 weight % of multilayered rubber latex in which the ratio of particle diameter (Pb/Pa) of an inner layer (Pa) to outer layer is 1.05-1.5, and glass transition temperature of the inner layer or the outer layer is up to −30° C.; and b) 20-80 weight % of vinyl monomer. According to the present invention, a thermoplastic polyester resin composition having excellent transparency and improved impact strength can be provided by containing an impact strength modifier for thermoplastic polyester resin having multilayered structure in which content of rubber latex, glass transition temperature, particle diameter and refraction index are regulated.
    • 本发明涉及一种热塑性聚酯树脂的冲击强度改性剂和含有该热塑性聚酯树脂的热塑性聚酯树脂组合物,更准确地说,是一种热塑性聚酯树脂的冲击强度改性剂,其通过以下方法制备:a)20-80重量%的多层橡胶胶乳 其中内层(Pa)与外层的粒径(Pb / Pa)的比率为1.05〜1.5,内层或外层的玻璃化转变温度高达-30℃。 和b)20-80重量%的乙烯基单体。 根据本发明,通过含有橡胶胶乳含量,玻璃化转变温度,粒径和折射率的多层结构的热塑性聚酯树脂的冲击强度改性剂,可以提供透明性和冲击强度优异的热塑性聚酯树脂组合物 受到监管。
    • 6. 发明授权
    • Method for producing microbulbs of garlic {Allium sativum l.} in vitro
    • 在大蒜生产微生物的方法(Allium sativum l。)
    • US06265217B1
    • 2001-07-24
    • US09516070
    • 2000-03-01
    • Kyung Ho ChungSang Il Nam
    • Kyung Ho ChungSang Il Nam
    • C12N500
    • A01H4/008A01H4/005C12N5/04
    • A method for producing the bulbs of Garlic with saving the cost for producing them and enhancing the work efficiency and the yield by dark-culturing and/or liquid media-culturing of the garlic tissues in vitro is provided, which comprises the steps of: a) isolation and excision of the virus-free tissues in the length of 0.2 to 0.3 mm obtained from the meristem of parent body of garlic; b) inoculating the excised tissues from the meristem tissue of garlic onto the solid-type primary media; c) culturing the tissues inoculated onto the solid-type primary media under the light condition at 25° C. in the culturing room for 4 weeks; d) propagating the shoots regenerated from the cultured tissues at the multiplication media for 4 weeks; e) transferring the propagated shoots into the liquid-type media with additional components of 90 g/l of sucrose and plant growth regulators and culturing them primarily for 10 days; f) transferring the primarily cultured tissues into the liquid-type media having the same composition as the media used in the step e) with additional components of 140 g/l of sucrose and plant growth regulators; g) secondarily culturing the said tissues at about 25° C. and under the dark-condition in the culturing room for 6 weeks; h) harvesting the microbulbs from the virus-free garlic plants in vitro; in which the steps f) and g) are carried out in the altered liquid-type MS media under the dark-condition with no artificial illumimation.
    • 提供了一种生产大蒜灯泡的方法,其节省了生产成本,并通过体外培养和/或液体介质培养大蒜组织提高了工作效率和产量,其包括以下步骤:a )从大蒜亲体分生组织获得的长度为0.2至0.3mm的无病毒组织的分离和切除; b)将从大蒜分生组织切下的组织接种到固体型初级培养基上; c) 在培养室中在25℃的光照条件下培养接种到固体型初级培养基上的组织4周; d)在繁殖培养基中培养从培养的组织再生的芽4周; e) 将具有90g / l蔗糖和植物生长调节剂的附加成分的液体型培养基扩散至液体培养基中,并将其主要培养10天; f)将主要培养的组织转移到具有t 与步骤e)中使用的培养基相同的组成与140g / l蔗糖和植物生长调节剂的附加组分相同; g)在培养室中在约25℃和黑暗条件下二次培养所述组织 6周; h)从无病毒的大蒜植物体外收获微球;其中步骤f)和g)在黑暗条件下在改变的液体型MS培养基中进行,没有人造光晕。