COMPOSITE MATERIAL MADE OF THERMOSETTING RESIN COMPOSITION

    公开(公告)号:US20200165446A1

    公开(公告)日:2020-05-28

    申请号:US16202156

    申请日:2018-11-28

    摘要: A thermosetting resin composition comprises a thermosetting polybutadiene resin, a thermosetting polyphenylene ether resin that is ended with styrene and acrylate in a weight ratio of 0.5-1.5 as reactive functional groups, a thermoplastic resin that serves to set desired heat resistance, flowability and filling performance, a compound cross-linking initiator composed of peroxides of different half-life temperatures to effectively improve its crosslink density during its thermal curing process; particularly the composition after cured has a low dielectric constant, a low dielectric dissipation factor, a high Tg, and high rigidity, and the prepreg made thereof is easy to cut.

    Preparation and application of dicyclopentadiene-phenol and 2,6-dimethyl phenol copolymer epoxy resin

    公开(公告)号:US10544254B2

    公开(公告)日:2020-01-28

    申请号:US15414582

    申请日:2017-01-24

    摘要: This invention provides a new dicyclopentadiene phenol and 2,6-dimethyl phenol copolymer epoxy resin with excellent heat resistance, low dielectric constant Dk, low dissipation factor Df having the formula 1. Preparation of dicyclopentadiene phenol and 2,6-dimethyl phenol copolymer epoxy resin in two steps: Step 1, reacting (a1) dicyclopentadiene phenol resin represented by formula 2 with (a2) 2,6-dimethyl phenol in the presence of acid catalyst by (a3) aldehyde compounds to synthesize dicyclopentadiene phenol-2,6-dimethyl phenol copolymer, and Step 2, reacting dicyclopentadiene phenol and 2,6-dimethyl phenol copolymer with excess epichlorhydrin under NaOH condition to prepare dicyclopentadiene phenol and 2,6-dimethyl phenol copolymer epoxy resin. When this dicyclopentadiene phenol and 2,6-dimethyl phenol copolymer epoxy resin according to the present invention is substituted into compositions for laminate, they have low dielectric constant, low dissipation factor, and no delamination after longer than 10 minutes 288° C. soldering test and 2 hours pressure cooking test.

    Aluminum film packaging materials used for lithium batteries

    公开(公告)号:US10403865B2

    公开(公告)日:2019-09-03

    申请号:US14505713

    申请日:2014-10-03

    IPC分类号: H01M2/02 H01M10/052

    摘要: A method for lithium aluminum film packaging materials, with water, high temperature and corrosion resistance, the substrate layer, and then layer, aluminum foil layer, anti-corrosion layer, adhesive layer and the inner layer together constitute from the outermost to innermost layer laminate structure in which one side of the aluminum foil layer, or both side surface of the conductive coating material to said coating and curing anticorrosive layer, and the use of fluorine-containing polyurethane resin constituting the laminated rubber layer and the inner layer of corrosion between the adhesive layer, used lithium batteries as plastic film packaging applications, it can promote lithium battery with Merit water resistance, high temperature resistance and corrosion resistance, and enhance the use of lithium batteries in years.

    Polyphenylene ether modified phenol-benzaldehyde multifunctional epoxy resin and use

    公开(公告)号:US10100142B2

    公开(公告)日:2018-10-16

    申请号:US15071733

    申请日:2016-03-16

    摘要: The invention provides a polyphenylene ether modified phenol-benzaldehyde multifunctional epoxy resin with formula (I) wherein A is: PPE are: Z are: Y are: Their manufactured is following steps: polyphenylene ether 100 parts is dissolved in solvent, then phenol-benzaldehyde multifunctional epoxy resin 100˜450 parts and catalyst 0.01˜5 parts are added, stirred and mixed at 90˜180, for 1˜4 hour, to obtain formula (I) solution. Said product is formulated with compositions for laminate, having excellent electrical properties and heat resistance. The dielectric constant is 4.03(1 GHz), dissipation factor is 0.0046(1 GHz) and no delamination longer than 60 minutes dipping in 288 soldering test after 2 hours pressure cooking test. Application is insulating materials for highly reliable electronic components such as EMC, PCB substrates, laminate and insulating plates.