Outdoor electrical apparatus having an outer housing arranged to selectively encase a main encapsulant

    公开(公告)号:US10959344B2

    公开(公告)日:2021-03-23

    申请号:US16145568

    申请日:2018-09-28

    Applicant: Trench Limited

    Abstract: An outdoor electrical apparatus (10) and methodology for manufacturing such apparatus are provided. The apparatus includes an electrical device (12), and an encapsulation housing system including a main encapsulant (11a) and an outer housing (11b). The main encapsulant may be arranged to encapsulate the electrical device, and the outer housing may be arranged to selectively encase surfaces of the main encapsulant based on an extent to which the surfaces of the main encapsulant otherwise would be subject to outdoor exposure. The main encapsulant comprises a bisphenol epoxy resin, and the outer housing comprises a cycloaliphatic epoxy resin to provide weatherability and resistance to ultraviolet (UV) radiation. This approach of selectively encasing surfaces of the main encapsulant with the outer housing, based on a relatively lower cost epoxy resin, is effective to balance competing demands, such as reducing a total monetary cost of the encapsulation housing system while meeting requisites regarding weatherability and UV radiation resistance.

    Cationically curable resin composition

    公开(公告)号:US10428214B2

    公开(公告)日:2019-10-01

    申请号:US16091702

    申请日:2017-04-03

    Inventor: Hiroto Matsuoka

    Abstract: The present invention addresses the problem of providing a cationically curable resin composition having storage stability while maintaining photocurability and low-temperature (less than 100° C.) curability. The cationically curable resin composition can include component (A): a cationically polymerizable compound, component (B): a photo-cationic polymerization initiator, component (C): a thermal cationic polymerization initiator, and component (D): a compound having an isocyanuric ring. Also, the content of the component (D) can be 0.01 to 7 parts by mass per 100 parts by mass of the component (A).

    Catalysts
    7.
    发明授权

    公开(公告)号:US10030102B2

    公开(公告)日:2018-07-24

    申请号:US15327677

    申请日:2015-07-22

    Abstract: The present invention relates to the field of polymerisation catalysts, and systems comprising these catalysts for polymerising carbon dioxide and an epoxide, a lactide and/or lactone, and/or an epoxide and an anhydride. The catalyst is of formula (I): wherein at least one of M1 or M2 is selected from Ni(II) and Ni(III)-X. A process for the reaction of carbon dioxide with an epoxide; an epoxide and an anhydride; and/or a lactide and/or a lactone in the presence of the catalyst is also described.

    Epoxy resin compositions
    8.
    发明授权

    公开(公告)号:US10023685B2

    公开(公告)日:2018-07-17

    申请号:US15125372

    申请日:2015-02-26

    Abstract: A novel byproduct compound having the following chemical formula B: wherein R is hydrogen or CH3; a composition including an admixture of: (A) a product having the following chemical formula A: wherein R is hydrogen or CH3; and (B) the above novel byproduct compound having the chemical formula B; and a composition including a reaction product of: (a) an aromatic epoxy resin; (b) hydrogen; (c) a catalyst; and (d) a solvent; wherein the reaction product produced is a cycloaliphatic epoxy resin admixture of the combination of (i) the above product having the chemical formula A and (ii) the novel byproduct compound having the chemical formula B; wherein the above product having the chemical formula A includes at least a cis-cis isomer, a cis-trans isomer, and a trans-trans isomer; and the novel byproduct compound having the chemical formula B includes at least a cis isomer and a trans isomer.

Patent Agency Ranking