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公开(公告)号：US20240198418A1
公开(公告)日：2024-06-20
申请号：US18338378
申请日：2023-06-21
发明人： Bo Zhang , Guochuang Huang , Hezhi Wang
CPC分类号： B22F1/10 , B22F1/052 , B22F2301/10 , B22F2304/058 , B22F2304/10
摘要： The present invention discloses a copper paste for printing a capillary structure and a preparation method thereof. The copper paste consists of copper powder, a high molecular polymer, a solvent, a binder, a dispersant, a leveling agent, a tackifier and an antioxidant. Through the limitation on the copper powder and the high molecular polymer in the copper paste of the present invention, the prepared copper paste can be applied to a carrier of a vapor chamber by blade coating or screen printing, and then used as a wick after binder removal and sintering in hydrogen or hydrogen-nitrogen mixed gas, so as to reduce device investment and cost; and the thickness of the wick can be accurately controlled to be 10-100 μm, the structural strength is higher, the water absorption performance and the heat transfer performance are better, and the demand for miniaturization of electronic products is met.
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公开(公告)号：US20240092963A1
公开(公告)日：2024-03-21
申请号：US18091307
申请日：2022-12-29
发明人： Hongyuan Wang , Yilan Zhang , Rui Pan , Hezhi Wang
IPC分类号： C08G14/06 , B32B7/12 , B32B15/01 , B32B15/20 , C08G59/24 , C08G59/28 , C08G73/10 , C08G73/12
CPC分类号： C08G14/06 , B32B7/12 , B32B15/01 , B32B15/20 , C08G59/245 , C08G59/28 , C08G73/1021 , C08G73/12 , B32B2311/12 , B32B2457/08
摘要： This application provides a resin composition and an adhesive. The resin composition is composed of benzoxazine and a resin. The benzoxazine is synthesized from a primary amine-capped flexible polyimide oligomer, an aldehyde and a monofunctional phenolic compound. The resin contains one or more of an epoxy resin, a maleimide resin, and a cyanate ester resin containing two or more functional groups. The resin is 0.1%-70% by weight of the benzoxazine.
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3.发明公开公开(公告)号：US20240284097A1
公开(公告)日：2024-08-22
申请号：US18324179
申请日：2023-05-26
发明人： Yuanwei Su , Hezhi Wang , Changliang Wang
CPC分类号： H04R1/288 , B29C67/248 , C08J5/243 , C08J5/249 , C08K3/34 , C08K7/00 , C09K5/14 , B29K2105/162 , B29K2507/04 , B29K2509/00 , B29K2707/04 , C08J2309/06 , C08J2333/04 , C08J2363/00 , C08J2375/04 , C08J2383/04 , C08K2003/343 , C08K2201/001 , C08K2201/005 , C08K2201/011
摘要： The present disclosure provides a thermally-conductive and sound-absorbing composite material and a preparation method thereof and a speaker. The thermally-conductive and sound-absorbing composite material includes the following components by mass percent: 10-80% of an activated carbon felt, 5-75% of zeolite particles, 1-80% of graphene particles and 5-40% of an adhesive, where the activated carbon felt serves as a skeleton; the graphene particles are bonded to an activated carbon fiber surface of the activated carbon felt through the adhesive; and the zeolite particles are bonded to surfaces of the graphene particles and the activated carbon fiber surface of the activated carbon felt through the adhesive. The thermally-conductive and sound-absorbing composite material provided by the present disclosure has excellent heat conductivity, excellent sound absorption performance, and a desirable mechanical strength.
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公开(公告)号：US20240214721A1
公开(公告)日：2024-06-27
申请号：US18324110
申请日：2023-05-25
发明人： Jie Zhang , Hezhi Wang , Zhongyang Wang
CPC分类号： H04R1/288 , C01B39/026 , H04R1/02 , C01P2004/03 , C01P2006/12 , C01P2006/14 , C01P2006/16
摘要： A molecular sieve material for sound absorption and a method for preparing the same are disclosed. There is a pore structure formed by mesopores with a pore size between 10 and 50 nm on a surface of the molecular sieve material, and the mesopores have a pore volume above 0.25 cm3/g. The molecular sieve material is obtained by etching and modifying a molecular sieve raw powder with an aqueous solution of an inorganic alkali. Since an alkali solution can selectively remove part of silicon elements in a skeleton structure of molecular sieve, more and more pore structures are generated in molecular sieve particles, which can increase the specific surface area and thus enhance the adsorption capacity of the molecular sieve for gases. The frequency reduction performance of the speaker can be significantly improved after the rear cavity of the speaker is filled with the molecular sieve material.
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公开(公告)号：US20240101746A1
公开(公告)日：2024-03-28
申请号：US18090531
申请日：2022-12-29
发明人： Hongyuan Wang , Yilan Zhang , Rui Pan , Hezhi Wang
CPC分类号： C08G14/06 , B32B7/12 , B32B15/043 , B32B15/20 , C08G73/1032 , C08G73/1082 , C09J161/14 , B32B2311/12 , B32B2457/08 , C08G2170/00 , C09J2400/163 , C09J2461/00
摘要： This application provides a benzoxazine resin and a preparation method thereof, and an adhesive. The benzoxazine resin is represented by the following formula:
where R1, R2, R3 and R4 are each independently selected from the group consisting of —H, alkyl, alkoxy, cycloalkyl, and aryl, and at least one of R1, R2, R3 and R4 is —H; X1 is an alkyl or/and alkoxy containing a long chain structure in main chain or side chain; X2 is one or more selected from alkyl, ether group, alkoxy, alkyl ester group, carbonyl, sulfone group, and thioether group; and n is 1-150.-
公开(公告)号：US20240336738A1
公开(公告)日：2024-10-10
申请号：US18402739
申请日：2024-01-03
发明人： Yilan Zhang , Hongyuan Wang , Hezhi Wang
IPC分类号： C08G73/10 , C08G59/32 , C08K5/26 , C08K5/29 , C08K5/315 , C08K5/3492 , C09J179/08
CPC分类号： C08G73/1082 , C08G59/32 , C08G73/1021 , C08G73/1032 , C08K5/26 , C08K5/29 , C08K5/3155 , C08K5/34922 , C09J179/08 , C08G2170/00 , C09J2400/163 , C09J2479/08
摘要： The present invention provides a resin composition, a polyimide preparation method and related products. The resin composition consists of the following components: polyimide which is a soluble product generated by a reaction of monomer groups containing aromatic tetracarboxylic dianhydride and diacid dihydrazide, a main chain of the polyimide containing a hydrazide structure; and a curing agent which comprises one or more of multifunctional epoxy resin, a primary amine compound with three or more functional groups, and polyisocyanate, wherein a mass ratio of the curing agent to the soluble polyimide is 0-20%. The resin composition in the present invention utilizes the hydrazide structure in the polyimide to prepare an adhesive with excellent heat resistance, adhesive performance, and solubility, overcoming the shortcomings of existing polyimide-based adhesives during processing or application.
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公开(公告)号：US11837210B1
公开(公告)日：2023-12-05
申请号：US18094996
申请日：2023-01-10
发明人： Yuanwei Su , Hezhi Wang , Changliang Wang
IPC分类号： G10K11/165 , G10K11/36
CPC分类号： G10K11/165 , G10K11/36
摘要： A porous composite sound-absorbing material and a method for preparing the same are provided. The porous composite sound-absorbing material includes activated carbon cotton felt, zeolite particles, and an adhesive. The activated carbon cotton felt can bond the zeolite particles to fiber surfaces thereof by means of the adhesive, so that the zeolite particles are evenly dispersed and fixed and achieve optimal sound absorption performance. Meanwhile, a large number of micro-pore structures on surfaces thereof can act synergistically with the zeolite particles, so that the porous composite sound-absorbing material has significantly better sound absorption performance than the two and has extremely high cost performance. During the preparation process, the activated carbon cotton felt after treatments, is successfully compounded with the zeolite particles with more excellent sound absorption performance, so that the sound absorption performance is significantly improved and the cost performance is extremely high.
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公开(公告)号：US20230217597A1
公开(公告)日：2023-07-06
申请号：US17835873
申请日：2022-06-08
发明人： Rui Pan , Hongyuan Wang , Yilan Zhang , Hezhi Wang
CPC分类号： H05K3/0044 , H05K3/022 , H05K1/0313 , H05K2203/1545 , H05K2201/0154 , H05K2201/0355
摘要： A reel mechanism and a winding device for a flexible copper clad laminate includes a rotating roller, a winding belt wound on the rotating roller for winding the flexible copper clad laminate, first and second limit structures arranged one side of the winding belt away from the rotating roller. A space between the first limit structures and the second limit structures accommodates the flexible copper clad laminate. When the winding belt is wound with multiple layers outside the rotating roller, adjacent layers of the winding belt are spaced apart by the first and second limit structures. Since a protruding height of the first limit structures is equal to a protruding height of the second limit structures, and intervals between adjacent layers of a composite coil formed by the winding belt and the flexible copper clad laminate are equal, which avoids adhesion and copper foil surface oxidation.
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公开(公告)号：US12120828B2
公开(公告)日：2024-10-15
申请号：US17835873
申请日：2022-06-08
发明人： Rui Pan , Hongyuan Wang , Yilan Zhang , Hezhi Wang
CPC分类号： H05K3/0044 , H05K1/0313 , H05K3/022 , H05K2201/0154 , H05K2201/0355 , H05K2203/1545
摘要： A reel mechanism and a winding device for a flexible copper clad laminate includes a rotating roller, a winding belt wound on the rotating roller for winding the flexible copper clad laminate, first and second limit structures arranged one side of the winding belt away from the rotating roller. A space between the first limit structures and the second limit structures accommodates the flexible copper clad laminate. When the winding belt is wound with multiple layers outside the rotating roller, adjacent layers of the winding belt are spaced apart by the first and second limit structures. Since a protruding height of the first limit structures is equal to a protruding height of the second limit structures, and intervals between adjacent layers of a composite coil formed by the winding belt and the flexible copper clad laminate are equal, which avoids adhesion and copper foil surface oxidation.
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公开(公告)号：US20240274107A1
公开(公告)日：2024-08-15
申请号：US18327016
申请日：2023-05-31
发明人： Zhongyang Wang , Hezhi Wang , Jie Zhang
IPC分类号： G10K11/168 , C08J9/00 , C08J9/08 , C08J9/28 , C08J9/36
CPC分类号： G10K11/168 , C08J9/0066 , C08J9/08 , C08J9/28 , C08J9/365 , C08J2309/08 , C08J2333/06 , C08J2375/04
摘要： A sound-absorbing material, a manufacturing method thereof and a speaker are provided. The sound-absorbing sheet includes a sheet body and a bonding layer. The sheet body is prepared by coating and freeze-drying a slurry, and the slurry is obtained by mixing sound-absorbing powder, a binder, a thickening agent and a foaming agent with a solvent. The sheet body has thickness of 0.05 mm-2 mm; the sheet body has needle-like pores with a pore size of 1 μm-100 μm. The bonding layer is configured to fixedly install the sound-absorbing sheet. By needle-like pores, the sound-absorbing sheet has high sound absorption performance, and low damping performance. The sheet can be designed into different shapes and thicknesses for rear cavities of different speakers, so the application range is wide. Because of bonding layer, while aging risk of a structure in the speaker is lowered, the sound-absorbing sheet has higher strength.
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