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1. 发明授权

US4883700A Composite and article using short length fibers at oblique angles 失效
标题翻译：复合材料和使用短角纤维的制品在倾斜角度
公开(公告)号：US4883700A
公开(公告)日：1989-11-28
申请号：US81073
申请日：1987-08-03
申请人： G. A. Harpell , H. L. Li , Y. D. Kwon , D. C. Prevorsek
发明人： G. A. Harpell , H. L. Li , Y. D. Kwon , D. C. Prevorsek
IPC分类号： F41H1/02 , B29B11/16 , B29C70/10 , B29C70/14 , B29C70/20 , B32B5/00 , B32B5/12 , F41H1/04 , F41H5/02 , F41H5/04
CPC分类号： B29C70/14 , B29C70/202 , B32B5/00 , F41H5/0485 , Y10S428/903 , Y10S428/911 , Y10T428/24116 , Y10T428/24124 , Y10T428/24752 , Y10T428/2476 , Y10T442/608
摘要： The present invention is an improved prepreg layer, multilayer composition based on the improved prepreg layer, and article made from the multilayer composite.The prepreg layer of the present invention comprises an array of at least one adjacent, coplanar fibrous element. Each element has a longitudinal axis and each element comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers are at an oblique angle to the longitudinal axis of the element. The fibers are up to eight inches, preferably from one to eight inches, and more preferably two to six inches long. The adjacent elements are connected by the polymer matrix. Typically, the elements are in strip or sheet form with the longitudinal axis corresponding to long dimension of the strip or sheet. Alternately, the prepreg layer can be a fabric layer, where the fibers are woven or knit and the fibers are at an oblique angle to the longitudinal axis.The present invention includes a multilayer composite comprising a plurality of the prepreg layers where each prepreg layer comprises an array of at least one coplanar, and alternately at least two adjacent coplanar fibrous elements.
摘要翻译：本发明是改进的预浸料层，基于改进的预浸料层的多层组合物和由多层复合材料制成的制品。本发明的预浸料层包括至少一个相邻的共面纤维元件的阵列。每个元件具有纵向轴线，并且每个元件包括嵌入聚合物基质中的多个单向共面纤维。纤维与元件的纵向轴线成倾斜的角度。纤维长达8英寸，优选1至8英寸，更优选2至6英寸长。相邻元件通过聚合物基体连接。通常，这些元件是带状或片状的，纵向轴线对应于条或片的长度尺寸。或者，预浸料层可以是织物层，其中纤维被编织或编织，并且纤维与纵向轴线成倾斜的角度。本发明包括多层复合材料，其包括多个预浸料层，其中每个预浸料层包括至少一个共面的阵列和至少两个相邻的共面纤维组分。

2. 发明授权

US5112667A Impact resistant helmet 失效
标题翻译：耐冲击头盔
公开(公告)号：US5112667A
公开(公告)日：1992-05-12
申请号：US560918
申请日：1990-07-31
申请人： H. L. Li , D. C. Prevorsek
发明人： H. L. Li , D. C. Prevorsek
IPC分类号： A42B3/06 , B29C70/20 , B29C70/30 , F41H5/04
CPC分类号： A42B3/063 , B29C70/207 , B29C70/30 , F41H1/08 , F41H5/0485 , B29L2031/4821 , Y10S428/911 , Y10T428/24058 , Y10T428/24124 , Y10T428/24628 , Y10T428/24942
摘要： The present invention is an improved impact resistant composite and helmet made thereof. The helmet comprises an impact resistant composite shell. The composite shell comprises a plurality of prepreg packets. Each prepreg jacket comprises at least about 2 and preferably 5 to 20 prepreg layers. There are from 2 to 50 and preferably 5 to 20 prepreg packets. Each prepreg layer comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers of adjacent layers in the prepreg packets are at an angle of from 45.degree. to 90.degree., preferably 60.degree. to 90.degree., more preferably 80.degree. to 90.degree. and most preferably about 90.degree. from each other. The angle of the fiber in alternate layers is preferably, subtantially the same.
摘要翻译：本发明是一种改进的耐冲击复合材料和头盔。头盔包括耐冲击复合外壳。复合外壳包括多个预浸料包。每个预浸料夹套包括至少约2个，优选5至20个预浸料层。有2到50个，最好是5到20个预浸料包。每个预浸料层包括嵌入聚合物基质中的多个单向共面纤维。预浸料包装中的相邻层的纤维相互之间的角度为45°至90°，优选为60°至90°，更优选为80°至90°，最优选为约90°。交替层中的纤维的角度优选地基本相同。

3. 发明授权

US4953234A Impact resistant helmet 失效
标题翻译：耐冲击头盔
公开(公告)号：US4953234A
公开(公告)日：1990-09-04
申请号：US377807
申请日：1989-07-10
申请人： H. L. Li , D. C. Prevorsek
发明人： H. L. Li , D. C. Prevorsek
IPC分类号： F41H1/04 , A42B3/06 , B29C70/20 , B29C70/30 , B32B5/12 , F41H5/04
CPC分类号： A42B3/06 , B29C70/207 , B29C70/30 , F41H1/08 , F41H5/0485 , B29L2031/4821 , Y10S428/911 , Y10T428/24124 , Y10T428/24995
摘要： The present invention is an impact resistant composite and helmet made thereof. The helmet comprises an impact resistant composite shell. The composite shell comprises a plurality of prepreg packets. Each prepreg packet comprises at least about 2 and preferably 5 to 20 prepreg layers. There are from 2 to 50 and preferably 5 to 20 prepreg packets. Each prepreg layer comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers of adjacent layers in the prepreg packets are at an angle of from 45.degree. to 90.degree., preferably 60.degree. to 90.degree., more preferably 80.degree. to 90.degree. and most preferabaly about 90.degree. from each other. The angle of the fiber in alternate layers is preferably, sustantially the same.
摘要翻译：本发明是由其制成的耐冲击复合材料和头盔。头盔包括耐冲击复合外壳。复合外壳包括多个预浸料包。每个预浸料包括至少约2个，优选5至20个预浸料层。有2到50个，最好是5到20个预浸料包。每个预浸料层包括嵌入聚合物基质中的多个单向共面纤维。预浸料包装中相邻层的纤维的相对角度为45°至90°，优选为60°至90°，更优选为80°至90°，最优选为90°。交替层中纤维的角度优选维持相同。

4. 发明授权

US4820568A Composite and article using short length fibers 失效
标题翻译：复合材料和使用短纤维的制品
公开(公告)号：US4820568A
公开(公告)日：1989-04-11
申请号：US81260
申请日：1987-08-03
申请人： Gary A. Harpell , H. L. Li , Y. D. Kwon , D. C. Prevorsek
发明人： Gary A. Harpell , H. L. Li , Y. D. Kwon , D. C. Prevorsek
IPC分类号： F41H1/04 , A42B3/00 , B29B11/16 , B29C70/06 , B29C70/12 , B29C70/14 , C08J5/24 , F41H5/04 , B32B5/12
CPC分类号： F41H5/0485 , B29C70/12 , B29C70/14 , B29K2105/108 , B29L2031/4821 , Y10S428/902 , Y10S428/911 , Y10T428/24124 , Y10T428/24752 , Y10T442/3065
摘要： The present invention is an improved prepreg layer, multilayer composite based on the improved prepreg layer, and article made from the multilayer composite.The prepreg layer of the present invention comprises an array of at least two adjacent, coplanar fibrous elements. Each element comprises a plurality of unidirectional coplanar fibers embedded in a polymeric matrix. The fibers are up to eight inches, preferably one to eight inches, and more preferably two to six inches long.The prepreg layer of the present invention is useful to make a multilayer composite comprising a plurality of the prepreg layers as recited above. The fibers of adjacent layers are at an angle of about 90.degree. from each other. The composite preferably has 2 to 500, more preferably 10 to 150, and most preferably 60 to 120 layers.
摘要翻译：本发明是改进的预浸料层，基于改进的预浸料层的多层复合材料和由多层复合材料制成的制品。本发明的预浸料层包括至少两个相邻的共面纤维元件的阵列。每个元件包括嵌入聚合物基质中的多个单向共面纤维。纤维长达8英寸，优选1至8英寸，更优选2至6英寸长。本发明的预浸料层可用于制造如上所述的包含多个预浸料层的多层复合材料。相邻层的纤维彼此成90°角。复合物优选具有2〜500，更优选10〜150，最优选60〜120层。

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