Polybenzoxazine precursor and method for preparing same

    公开(公告)号:US10144716B2

    公开(公告)日:2018-12-04

    申请号:US15532576

    申请日:2015-12-07

    Abstract: This invention relates to a polybenzoxazine precursor and a method of preparing the same, and more particularly, to a polybenzoxazine precursor which includes benzoxazine obtained by reacting a phenol novolak resin with an aldehyde compound and allylamine and diaminodiphenylmethane as an amine compound, and to a method of preparing the same. The polybenzoxazine precursor may serve to prepare a hardened material having excellent thermal and electrical characteristics and dimensional stability. Accordingly, the polybenzoxazine precursor may be available for use in a copper clad laminate, a semiconductor encapsulant, a printed circuit board, an adhesive, a paint, and a mold.

    Benzoxazine-based mixture and use thereof

    公开(公告)号:US10766887B2

    公开(公告)日:2020-09-08

    申请号:US16312650

    申请日:2017-06-30

    Abstract: The present invention relates to a benzoxazine-based mixture and a use thereof and, more specifically, to a benzoxazine-based mixture and a use of a cured product in which the benzoxazine-based mixture is cured, wherein the benzoxazine-based mixture has high dielectric characteristics, heat resistant characteristics, and flame-retardant characteristics by comprising a benzoxazine ring in a molecular structure, and thus can be applied to a sealing material, a molding material, a template material, an adhesive, a material for an electric insulation paint, and the like, which are used for a copper clad laminate or an electronic part, used in a printed circuit board.

    Rubber composition containing main-chain benzoxazine, and preparation method therefor

    公开(公告)号:US10538648B2

    公开(公告)日:2020-01-21

    申请号:US15736432

    申请日:2016-06-16

    Abstract: Disclosed is a rubber composition containing main-chain benzoxazine, in which benzoxazine generates no harmful materials during vulcanization and can thus be used in lieu of a phenol novolac resin used as a resin component of a conventional rubber composition, and also in which the use of benzoxazine, especially main-chain benzoxazine having a high molecular weight, is capable of maintaining excellent mechanical properties and exhibiting high flexibility. The rubber composition of the invention can be utilized for a rubber product, especially a tire product.

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