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公开(公告)号：WO2013095908A2
公开(公告)日：2013-06-27
申请号：PCT/US2012067714
申请日：2012-12-04
Applicant: DOW GLOBAL TECHNOLOGIES LLC , ROHM & HAAS ELECT MATERIALS
Inventor： FU LIN , ESSEGHIR MOHAMED , HARRIS WILLIAM J , BAYES MARTIN W , EATON ROBERT F , KMIEC CHESTER J , NEESE BRET P
IPC: C08L63/00
CPC classification number: C08L63/10 , B05D3/007 , C08L51/00 , C08L63/00 , C08L2201/02 , C08L2205/02 , C09D5/24 , H05K5/00 , H05K7/2039
Abstract: A process for preparing a cured composite material useful for radio frequency filter applications comprising the steps of: (a) providing a curable thermoset epoxy resin composition comprising (i) at least one epoxy resin; (ii) at least one toughening agent; (iii) at least one hardener; and (iv) at least one filler; (b) curing the curable thermoset epoxy resin composition of step (a) to form a cured composite; wherein the curable thermoset epoxy resin composition upon curing provides a cured composite product with a balance of properties comprising Tg, coefficient of thermal expansion, tensile strength, thermal conductivity; and having a density of less than 2.7 g/cc; and (c) coating at least a portion of the surface of the cured composite of step (b) with an electrically conductive metal layer to form a metalized coating on at least a portion of the surface of the cured composite. The cured composite material may be useful as a radio frequency cavity filter body housing for radio frequency filter applications.
Abstract translation: 一种制备用于射频滤波器应用的固化复合材料的方法，包括以下步骤：（a）提供可固化的热固性环氧树脂组合物，其包含（i）至少一种环氧树脂; （ii）至少一种增韧剂; （iii）至少一种硬化剂; 和（iv）至少一种填料; （b）固化步骤（a）的可固化热固性环氧树脂组合物以形成固化的复合材料; 其中所述可固化热固性环氧树脂组合物在固化时提供固化的复合产品，其平衡性包括Tg，热膨胀系数，拉伸强度，热导率; 并且具有小于2.7g / cc的密度; 和（c）用导电金属层涂覆步骤（b）的固化的复合材料的至少一部分表面，以在固化的复合材料的表面的至少一部分上形成金属化涂层。 固化的复合材料可用作射频滤波器应用的射频腔体滤波器体外壳。
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2.发明专利
公开(公告)号：CA2969005C
公开(公告)日：2021-12-14
申请号：CA2969005
申请日：2014-11-28
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： XU XIAN MIN , SUN GANGWEI , ESSEGHIR MOHAMED , KMIEC CHESTER J
Abstract: The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) a fluororesin, and (B) a mixture of (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and (2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal dihydrogen citrate and an alkali metal bicarbonate with the proviso that if the first component of the mixture is an alkali metal citrate, then the second component of the mixture is not an alkali metal citrate.
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公开(公告)号：CA2927156C
公开(公告)日：2021-10-26
申请号：CA2927156
申请日：2013-10-18
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ESSEGHIR MOHAMED , SUN GANGWEI , CHAUDHARY BHARAT I , KMIEC CHESTER J , MARCHAND GARY R , HU YUSHAN
Abstract: Optical cable components fabricated from an extrudable polymeric blend of crystalline polypropylene modified with one or more impact-modifying polymers. The impact-modifying polymers are selected from an olefin multi-block interpolymer, an olefin block composite, and combinations thereof. Optionally, the polymeric blend can further comprise an elastomer other than the impact-modifying polymer. The polymeric blend may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes.
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公开(公告)号：CA2999845A1
公开(公告)日：2017-04-06
申请号：CA2999845
申请日：2016-09-06
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ESSEGHIR MOHAMED , HUANG WENYI , KMIEC CHESTER J
Abstract: Coated conductors comprising a conductor and a peelable polymeric coating at least partially surrounding the conductor, where the peelable polymeric coating comprises from 1 to 8 microcapillaries which comprise an elastomeric polymer having a lower flexural modulus than the polymeric matrix material of the polymeric coating. Also disclosed are methods for making such coated conductors.
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公开(公告)号：CA2980728A1
公开(公告)日：2016-10-06
申请号：CA2980728
申请日：2016-03-14
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ZHANG YICHI , ESSEGHIR MOHAMED , KMIEC CHESTER J , JIN YI , YALVAC SELIM
Abstract: Flooding compounds for telecommunications cables. Such flooding compounds contain a polyolefin elastomer and a hydrocarbon oil. The polyolefin elastomer has a crystallinity ranging from 10 less than 50 weight percent and a dynamic viscosity of 50,000 centipoise or less at 177° C. The hydrocarbon oil has a kinematic viscosity of 200 centistokes or less at 40° C.
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Patent Agency Ranking
公开(公告)号：CA2976914A1
公开(公告)日：2016-08-25
申请号：CA2976914
申请日：2016-02-02
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ESSEGHIR MOHAMED , HUANG WENYI , DOOLEY JOSEPH , LEE CHANG DONG , PUJARI SASWATI , KMIEC CHESTER J
Abstract: Coated conductors comprising a conductor and elongated polymeric coatings at least partially surrounding the conductor, where the elongated polymeric coatings comprise a polymeric matrix material and a plurality of microcapillaries containing an elastomeric polymeric material. Also disclosed are dies and methods for making such coated conductors.
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公开(公告)号：CA2917636A1
公开(公告)日：2015-01-22
申请号：CA2917636
申请日：2014-07-07
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： FLORY ANNY L , FU LIN , POLANKSY DAMIEN , KMIEC CHESTER J
Abstract: Conductive cores for use in cables, where the conductive core comprises a filled-polymeric-composite material concentrically surrounded by a conductive layer. The filled-polymeric-composite material comprises a polymeric continuous phase having dispersed therein a filler material. Such conductive cores can be employed in various cable designs and further include one or more outer layers, such as dielectric insulation layers, conductive shield layers, and jackets.
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公开(公告)号：CA2908971A1
公开(公告)日：2014-10-23
申请号：CA2908971
申请日：2014-04-03
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： CHEN BUO , ESSEGHIR MOHAMED , COGEN JEFFREY M , KMIEC CHESTER J , FLORY ANNY L , PUJARI SASWATI
IPC: G02B6/44
Abstract: Polymeric compositions having a slip agent comprising a silicone and a fatty acid amide. Such polymeric compositions can exhibit lower coefficients of friction when compared to polymeric compositions containing either silicone or fatty acid amide alone. Such polymeric compositions are suitable for use in various articles of manufacture, including, for example, wire and cable jackets.
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公开(公告)号：CA2880292A1
公开(公告)日：2014-04-03
申请号：CA2880292
申请日：2013-09-12
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： ZHOU HUAJUN , KMIEC CHESTER J
IPC: C08L23/00
Abstract: Polymeric compositions comprising an ethylene-based thermoplastic polymer and an olefinic thermoplastic elastomer. Processes for producing polymeric compositions comprising an ethylene-based thermoplastic polymer and an olefinic thermoplastic elastomer. Such polymeric compositions can be employed in forming coated wires and cables.
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公开(公告)号：CA2839583A1
公开(公告)日：2012-12-27
申请号：CA2839583
申请日：2012-03-08
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： FLORY ANNY , SMITH MICHAEL L , KMIEC CHESTER J , EATON ROBERT F , VIGIL ALFRED E JR
Abstract: The present disclosure provides a process for producing low density polyethylene with a dissipation factor less than or equal to 1.48 x 10-4 radian at 2.47 GHz. The process includes free radical high pressure polymerization of ethylene and separation of the unreacted species from the resultant polyethylene to form a recycle stream. The process further includes purging dissipative components from the recycle stream. The purged recycle stream is then introduced into the polymerization reactor.
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