Flame retardant epoxy resin composition, and prepreg and fiber-reinforced composite materials made by using the composition
AssigneeMitsubishi Rayon Co., Ltd.
InventorsMasato Taguchi, Yasushi Suzumura, Tadayoshi Saitou, Akihiro Itou
Life of this patent
Estimating the term…
Abstract
A flame retardant epoxy resin composition containing (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %: (wherein, n is 0 or a positive integer) (wherein, n is 0 or a positive integer) (B) a bisphenol type epoxy resin not containing a halogen, (C) an inorganic filler, and (D) an organic flame retardant. A prepreg and a fiber-reinforced composite using this epoxy resin composition.
Claims15
A flame retardant epoxy resin composition containing the following components (A), (B), (C), and (D):
- (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %:
- (wherein, n is 0 or a positive integer)
- (wherein, n is 0 or a positive integer)
- (B) a bisphenol type epoxy resin not containing a halogen,
- (C) an inorganic filler, and
- (D) an organic flame retardant,
- wherein the viscosity at 60° C. is 100 to 5000 poise.
A flame retardant epoxy resin composition containing the following components (A), (B), (C), (D), (E) and (F):
- (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %:
- (wherein, n is 0 or a positive integer)
- (wherein, n is 0 or a positive integer)
- (B) a bisphenol type epoxy resin not containing a halogen,
- (C) an inorganic filler,
- (D) an organic flame retardant selected from the group consisting of compounds of the following formulae (3), (4) and (5), and mixtures thereof:
- (where, R1 and R2 are alkyl groups and R1 and R2 may be the same or different),
- (E) a curing agent, and
- (F) a thermoplastic resin,
- wherein a viscosity at 65° C. is 100 to 8000 poise.
A flame retardant epoxy resin composition containing the following components (A), (B), (C), (D) and (F):
- (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %:
- (wherein, n is 0 or a positive integer)
- (wherein, n is 0 or a positive integer)
- (B) a bisphenol type epoxy resin not containing a halogen,
- (C) an inorganic filler,
- (D) an organic flame retardant selected from the group consisting of compounds of the following formulae (3), (4) and (5), and mixtures thereof:
- (where, R1 and R2 are alkyl groups and R1 and R2 may be the same or different), and
- (F) a thermoplastic resin,
- wherein the thermoplastic resin used as the component (F) is one of a polyvinyl formal, phenoxy resin, or a mixture of the two.
A flame retardant epoxy resin composition containing the following components (A), (B), (C), and (D):
- (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %:
- (wherein, n is 0 or a positive integer)
- (wherein, n is 0 or a positive integer)
- (B) a bisphenol type epoxy resin not containing a halogen,
- (C) an inorganic filler, and
- (D) an organic flame retardant of the following formula (3):
- (where, R1 and R2 are alkyl groups and R1 and R2 may be the same or different).
Dependencies are inferred from the claim text.