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公开(公告)号:US20170299339A1
公开(公告)日:2017-10-19
申请号:US15479089
申请日:2017-04-04
发明人: ASHOK BHATNAGAR , TYLER BARTELT , HENRY GERARD ARDIFF , GARY KRATZER , DAVID A. HURST , LORI L. WAGNER
CPC分类号: F41H1/02 , B29B15/12 , B29C70/506 , B29L2031/768 , B32B3/26 , B32B5/022 , B32B5/12 , B32B5/142 , B32B5/26 , B32B7/12 , B32B27/08 , B32B2250/20 , B32B2255/02 , B32B2255/26 , B32B2262/0223 , B32B2262/0253 , B32B2262/0269 , B32B2262/0276 , B32B2262/0284 , B32B2262/101 , B32B2307/514 , B32B2307/54 , B32B2307/718 , B32B2571/02 , F41H5/0478 , F41H5/0485
摘要: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.
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公开(公告)号:US20200284552A1
公开(公告)日:2020-09-10
申请号:US16833563
申请日:2020-03-28
发明人: ASHOK BHATNAGAR , TYLER BARTELT , HENRY GERARD ARDIFF , GARY KRATZER , DAVID A. HURST , LORI L. WAGNER
IPC分类号: F41H1/02 , F41H5/04 , B32B7/12 , B32B5/14 , B32B3/26 , B32B5/26 , B29B15/12 , B29C70/50 , B32B5/02 , B32B5/12 , B32B27/08
摘要: Ballistic resistant composite materials having high positive buoyancy in water are provided. More particularly, provided are foam-free, buoyant composite materials fabricated using dry processing techniques. The materials comprise fibrous plies that are partially coated with a particulate binder that is thermopressed to transform a portion of the binder into raised, discontinuous patches bonded to fiber/tape surfaces, while another portion of the particulate binder remains on the fibers/tapes as unmelted particles. The presence of the unmelted binder particles maintains empty spaces within the composite materials which increases the positive buoyancy of the composites in water.
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公开(公告)号:US20170297295A1
公开(公告)日:2017-10-19
申请号:US15479123
申请日:2017-04-04
发明人: ASHOK BHATNAGAR , GARY KRATZER , TYLER BARTELT , LORI L. WAGNER , HENRY GERARD ARDIFF , DAVID A. HURST
IPC分类号: B32B5/02 , B29C43/02 , B29C65/02 , B29C65/00 , B32B5/26 , B32B37/06 , B29C43/00 , B32B37/20 , B32B37/10 , B29L31/48
CPC分类号: B32B5/022 , B29C43/003 , B29C43/02 , B29C43/203 , B29C65/02 , B29C66/45 , B29C66/71 , B29C66/7294 , B29C2043/483 , B29K2623/0683 , B29K2713/00 , B29K2995/0089 , B29L2031/4821 , B30B5/06 , B30B15/34 , B32B5/26 , B32B37/06 , B32B37/10 , B32B37/1027 , B32B37/18 , B32B37/20 , B32B38/1808 , B32B2250/05 , B32B2260/023 , B32B2260/046 , B32B2262/0253 , B32B2305/076 , B32B2305/20 , B32B2307/558 , B32B2323/04 , B32B2355/00 , B32B2571/02
摘要: A process for forming defect-free fibrous composite materials. More particularly, a process for forming blister-free fibrous composites without having to actively monitor or control blister formation during molding of a stack of plies, and to blister-free composite materials fabricated therefrom. Fibrous plies are coated with a dry, particulate binder without impregnating the plies with the binder. Gaps between fibers/tapes allow air to diffuse out of the stack without affecting the binder coating, thereby avoiding blister formation.
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公开(公告)号:US20160109342A1
公开(公告)日:2016-04-21
申请号:US14978875
申请日:2015-12-22
发明人: ASHOK BHATNAGAR , HENRY GERARD ARDIFF , DAVID A. HURST , THOMAS YIU-TAI TAM , TYLER BARTELT , BRIAN DUANE ARVIDSON
摘要: An apparatus and method for evaluating the backface signature of flat panel ballistic resistant composites with accuracy, repeatability and improved correlation to the expected backface signature of shaped ballistic resistant composites in actual field use.
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