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1. 发明授权

US4440711A Method of preparing high strength and modulus polyvinyl alcohol fibers 失效
标题翻译：制备高强度和模量聚乙烯醇纤维的方法
公开(公告)号：US4440711A
公开(公告)日：1984-04-03
申请号：US432044
申请日：1982-09-30
申请人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
发明人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01F6/14
CPC分类号： D01F6/14
摘要： Polyvinyl alcohol of molecular weight over 500,000 (i.e. 1,500,000 to 2,500,000) is spun as a dilute solution (2-15%) in a relatively non-volatile solvent such as glycerin. The resultant gel fiber is extracted with a volatile solvent such as methanol and dried. Upon stretching at one or more stages during the process, fibers of tenacity above 10 g/denier and modulus above 200 g/denier (e.g. 18 and 450, respectively) are produced.
摘要翻译：分子量超过500,000（即1,500,000至2,500,000）的聚乙烯醇在相对非挥发性溶剂如甘油中以稀释溶液（2-15％）纺丝。所得凝胶纤维用挥发性溶剂如甲醇萃取并干燥。在该过程中在一个或多个阶段进行拉伸时，产生高于10g /旦尼尔的强度和高于200g /旦尼尔（分别为18和450）的模量的纤维。

2. 发明授权

US4883628A Method for preparing tenacity and modulus polyacrylonitrile fiber 失效
标题翻译：制备强度和模量聚丙烯腈纤维的方法
公开(公告)号：US4883628A
公开(公告)日：1989-11-28
申请号：US910245
申请日：1986-09-18
申请人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
发明人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01D5/00 , D01F6/18
CPC分类号： D01D5/00 , D01F6/18
摘要： Polyacrylonitrile (PAN) fibers are prepared by forming a 2-15 weight % solution of PAN of M.sub.w at least 500,000, extruding, cooling to below the gel temperature, extracting and drying. At least one of the gel fiber, the fiber containing extraction solvent and the dried gel is stretched. The product PAN fibers have a M.sub.w at least 500,000 (e.g. 1,000,000-4,000,000 or 1,500,000-2,500,000), a tenacity at least 5 g/den (e.g., at least 7 g/den) and a secant modulus at least 100 g/den (e.g. at least 125 g/den).
摘要翻译：通过形成Mw至少为500,000的2-15重量％的PAN溶液制备聚丙烯腈（PAN）纤维，挤出，冷却至低于凝胶温度，萃取和干燥。将至少一种凝胶纤维，含纤维的提取溶剂和干燥的凝胶拉伸。产品PAN纤维具有至少500,000（例如1,000,000-4,000,000或1,500,000-2,500,000）的Mw，至少5g / den（例如至少7g / den）的韧度和至少100g / den的割线模量例如至少125g / den）。

3. 发明授权

US5395691A Rigid polyethylene reinforced composites having improved short beam shear strength 失效
标题翻译：具有改进的短束剪切强度的刚性聚乙烯增强复合材料
公开(公告)号：US5395691A
公开(公告)日：1995-03-07
申请号：US28735
申请日：1993-03-08
申请人： Sheldon Kavesh , Kwang Kim , Young D. Kwon , Dusan C. Prevorsek
发明人： Sheldon Kavesh , Kwang Kim , Young D. Kwon , Dusan C. Prevorsek
IPC分类号： B29C70/10 , B32B27/02 , C08J5/04 , F41H5/04 , B32B5/08 , B32B5/12
CPC分类号： C08J5/046 , B29C70/10 , B32B27/02 , C08J5/04 , F41H5/0485 , B29K2023/06 , Y10T428/24058 , Y10T428/24124 , Y10T428/24132 , Y10T428/24636 , Y10T428/29 , Y10T428/2913 , Y10T428/2927 , Y10T428/2929
摘要： The present invention relates to high strength, high modulus polyethylene filaments which form composites having improved shear strength and composites formed from said filaments.
摘要翻译：本发明涉及形成具有改进的剪切强度的复合材料的高强度高模量聚乙烯长丝和由所述长丝形成的复合材料。

4. 发明授权

US4713290A High strength and modulus polyvinyl alcohol fibers and method of their preparation 失效
标题翻译：高强度和模量聚乙烯醇纤维及其制备方法
公开(公告)号：US4713290A
公开(公告)日：1987-12-15
申请号：US821374
申请日：1986-01-22
申请人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
发明人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01F6/14 , D02G3/00
CPC分类号： D01F6/14 , Y10T428/2913
摘要： Polyvinyl alcohol of molecular weight over 500,000 (i.e. 1,500,000 to 2,500,000) is spun as a dilute solution (2-15%) in a relatively non-volatile solvent such as glycerin. The resultant gel fiber is extracted with a volatile solvent such as methanol and dried. Upon stretching at one or more stages during the process, fibers of tenacity above 10 g/denier and modulus above 200 g/denier (e.g. 18 and 450, respectively) are produced.
摘要翻译：分子量超过500,000（即1,500,000至2,500,000）的聚乙烯醇在相对非挥发性溶剂如甘油中以稀释溶液（2-15％）纺丝。所得凝胶纤维用挥发性溶剂如甲醇萃取并干燥。在该过程中在一个或多个阶段进行拉伸时，产生高于10g /旦尼尔的强度和高于200g /旦尼尔（分别为18和450）的模量的纤维。

5. 发明授权

US4599267A High strength and modulus polyvinyl alcohol fibers and method of their preparation 失效
公开(公告)号：US4599267A
公开(公告)日：1986-07-08
申请号：US569818
申请日：1984-01-11
申请人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
发明人： Young D. Kwon , Sheldon Kavesh , Dusan C. Prevorsek
IPC分类号： D01F6/14 , D02G3/00
CPC分类号： D01F6/14 , Y10T428/2913
摘要： Polyvinyl alcohol of molecular weight over 500,000 (i.e. 1,500,000 to 2,500,000) is spun as a dilute solution (2-15%) in a relatively non-volatile solvent such as glycerin. The resultant gel fiber is extracted with a volatile solvent such as methanol and dried. Upon stretching at one or more stages during the process, fibers of tenacity above 10 g/denier and modulus above 200 g/denier (e.g. 18 and 450, respectively) are produced.

6. 发明授权

US5006390A Rigid polyethylene reinforced composites having improved short beam shear strength 失效
标题翻译：具有改进的短束剪切强度的刚性聚乙烯增强复合材料
公开(公告)号：US5006390A
公开(公告)日：1991-04-09
申请号：US367642
申请日：1989-06-19
申请人： Sheldon Kavesh , Kwang Kim , Young D. Kwon , Dusan C. Prevorsek
发明人： Sheldon Kavesh , Kwang Kim , Young D. Kwon , Dusan C. Prevorsek
IPC分类号： B29C70/10 , B32B27/02 , C08J5/04 , F41H5/04
CPC分类号： C08J5/046 , B29C70/10 , B32B27/02 , C08J5/04 , F41H5/0485 , B29K2023/06 , Y10T428/24058 , Y10T428/24124 , Y10T428/24132 , Y10T428/24636 , Y10T428/29 , Y10T428/2913 , Y10T428/2927 , Y10T428/2929
摘要： The present invention relates to high strength, high modulus polyethylene filaments which form composites having improved shear strength and composites formed from said filaments.
摘要翻译：本发明涉及形成具有改进的剪切强度的复合材料的高强度高模量聚乙烯长丝和由所述长丝形成的复合材料。

7. 发明授权

US5260122A Impact resistant woven body 失效
标题翻译：抗冲击机身
公开(公告)号：US5260122A
公开(公告)日：1993-11-09
申请号：US755249
申请日：1991-09-05
申请人： Dusan C. Prevorsek , Young D. Kwon , Hong B. Chin
发明人： Dusan C. Prevorsek , Young D. Kwon , Hong B. Chin
IPC分类号： D03D15/00 , D03D3/00
CPC分类号： D03D15/00 , D03D1/02 , D03D15/0083 , D10B2331/02 , D10B2331/04 , D10B2401/063 , D10B2507/06 , Y10S428/911 , Y10T428/2822 , Y10T428/2913 , Y10T428/2973 , Y10T442/30 , Y10T442/3041
摘要： This invention is related to a woven fibrous article which exhibits relatively low reductions in energy-to-break and tenacity on repeated impacts.
摘要翻译：本发明涉及一种织造纤维制品，其在反复冲击下表现出相对低的能量破坏和韧性。

8. 发明授权

US4056973A Testing viscoelastic solids 失效
标题翻译：测试粘弹性固体
公开(公告)号：US4056973A
公开(公告)日：1977-11-08
申请号：US750039
申请日：1976-12-13
申请人： Dusan C. Prevorsek , Young D. Kwon , Raj K. Sharma
发明人： Dusan C. Prevorsek , Young D. Kwon , Raj K. Sharma
IPC分类号： G01N3/34
CPC分类号： G01N3/34 , G01N2203/0016 , G01N2203/0094 , G01N2203/0222
摘要： An apparatus and method for testing viscoelastic solids, such as tire cord. The apparatus includes: holding means, pretension means, first and second displacement generators, and mechanical-electrical transforming means. The holding means holds the material in a predetermined position. The pretension means applies tension during testing. The first displacement generator has an eccentric means for applying cyclic displacement. The second displacement generator applies cyclic displacement to the material co-directional with that applied by the first displacement generator, but of smaller amplitude and higher frequency. The mechanical-electrical transforming means transforms mechanical motion into electrical signals, such as a stress signal, a strain signal and a differentiated strain signal. The apparatus may also include means for differential testing of duplicate material samples wherein one sample is subjected to cyclic displacement of both the first and second displacement generators, and the other sample is subjected to cyclic displacement of the first displacement generator only. The apparatus may further include integrating means for integration of a stress-strain hysteresis loop. The method includes: applying a basic substantially sinusoidal strain wave having superimposed a cyclic strain wave of smaller amplitude and higher frequency than the basic strain wave to the material, with resulting stress developed in the material; transforming the resultant strain into an electrical strain signal having a strain wave form; transforming the resulting stress into an electrical composite stress signal having a composite stress wave form; and determining cyclic changes in that component of the composite stress signal resulting from the superimposed strain wave as a function of the basic strain wave.
摘要翻译：用于测试粘弹性固体的装置和方法，例如轮胎帘线。该装置包括：保持装置，预紧装置，第一和第二位移发生器以及机电变换装置。保持装置将材料保持在预定位置。预张力在测试过程中施加张力。第一位移发生器具有用于施加循环位移的偏心装置。第二位移发生器将材料与由第一位移发生器施加的材料同向地施加循环位移，但是振幅较小和频率较高。机电变换装置将机械运动转换成电信号，例如应力信号，应变信号和微分应变信号。该装置还可以包括用于对重复材料样品进行差分测试的装置，其中一个样品经受第一和第二位移发生器的循环移位，另一个样品仅经受第一位移发生器的循环移位。该装置还可以包括用于积分应力 - 应变滞后回路的积分装置。该方法包括：将基本上基本正弦的应变波施加到具有比基本应变波更小的振幅和更高频率的循环应变波的基础上的正弦应变波到材料上，产生在材料中产生的应力; 将所得应变转换为具有应变波形的电应变信号; 将所得到的应力转化为具有复合应力波形的电复合应力信号; 并且确定由作为基本应变波的函数的叠加的应变波产生的复合应力信号的该分量中的循环变化。

9. 发明授权

US5545455A Constructions having improved penetration resistance 失效
标题翻译：具有改善穿透阻力的建筑物
公开(公告)号：US5545455A
公开(公告)日：1996-08-13
申请号：US378983
申请日：1995-01-24
申请人： Dusan C. Prevorsek , Kwok W. Lem , Hsin L. Li , Young D. Kwon
发明人： Dusan C. Prevorsek , Kwok W. Lem , Hsin L. Li , Young D. Kwon
IPC分类号： F41H5/04 , F41H1/02 , B32B1/04 , B32B3/06 , B32B5/12
CPC分类号： F41H5/0485 , B29C70/24 , B29C70/44 , Y10S428/911 , Y10T428/239 , Y10T428/24033 , Y10T428/24124 , Y10T428/2936
摘要： An improved rigid composite of the type comprising a plurality of fibrous layers at least two of which are secured together by a securing means, said improvements comprising a securing means which comprises at least two adjacent paths.
摘要翻译：一种改进的刚性复合材料，其包括多个纤维层，其中至少两个纤维层通过固定装置固定在一起，所述改进包括固定装置，该固定装置包括至少两个相邻的路径。

10. 发明授权

US5160776A Ballistic-resistant composite article 失效
标题翻译：防弹复合制品
公开(公告)号：US5160776A
公开(公告)日：1992-11-03
申请号：US719404
申请日：1991-06-24
申请人： Hsin L. Li , Dusan C. Prevorsek , Gary A. Harpell , Young D. Kwon
发明人： Hsin L. Li , Dusan C. Prevorsek , Gary A. Harpell , Young D. Kwon
IPC分类号： B32B5/26 , F41H5/04
CPC分类号： B32B5/26 , F41H5/0485 , Y10S428/911 , Y10T428/24058 , Y10T428/24091 , Y10T428/24132 , Y10T428/2495 , Y10T442/671 , Y10T442/696
摘要： The present invention provides an improved composite which comprises one or more layers, at least one of said layers comprising network of high strength filaments having a tensile modulus of at least about 160 grams/denier, a tenacity of at least about 7 g/denier and an energy-to-break of at least about 8 joules/gram in a matrix material, the ratio of the thickness of said layer to the equivalent diameter of said filaments is equal to or less than about 12.8, and complex composite articles formed from said composite.
摘要翻译：本发明提供了一种改进的复合材料，其包括一层或多层，所述层中的至少一层包括高强度长丝网，其拉伸模量为至少约160克/旦尼尔，强度为至少约7克/旦尼尔，在基质材料中至少约8焦耳/克的能量破裂，所述层的厚度与所述长丝的当量直径的比等于或小于约12.8，并且由所述综合。

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