Patent · US Active

Epoxy resin, curing agent and 9,10-Dihydro-9-oxa-10-phosphaphenanthrene derivative

US7897702B2 · kind B2 · utility

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Assignee

CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY, ARMAMENTS, BUREAU, MINISTRY OF NATIONAL DEFENSE · TW

Inventors

Wen-Chiung Su · Longqi, TW
Chun-Ku Liu · Longqi, TW
Ru-Jong Jeng · Taipei, TW
Shenghong A. Dai · Wallingford, US
Ching-Hsuan Lin · Taichung, TW

Key dates

Filing date	Nov 24, 2008
Grant date	Mar 1, 2011
Priority date	—
Expiry date	Jun 6, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L63/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention discloses a novel cross-linked epoxy resin with flame-retardant properties and method for producing the same. The polymeric material of the invention includes an epoxy resin, a curing agent and a modification agent. Particularly, the modification agent is a derivative of 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (DOPO). Moreover, the curing agent is 4,4′-diaminodiphenyl methane (DDM), or tris(4-aminephenyl)amine (NNH).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.