Fiber-reinforced resin plate and process for producing the same

Details Fiber-reinforced resin plate and process for producing the same Fiber-reinforced resin plate and process for producing the same

1995-03-15

1997-03-25

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525485, 525492, 525534, 525935, C08F28300, C08L 6100, C08G 828

Patent

active

056146000

ABSTRACT:
A fiber-reinforced resin plate comprising a fibrous base material and a matrix bonding the fibers contained in the fibrous base material, the matrix being formed by curing a resin composition comprising a highly reactive modified phenolic resin (A) prepared by polycondensing a petroleum heavy oil or pitch, a formaldehyde polymer and a phenol in the presence of an acid catalyst to thereby prepare a modified phenolic resin and-reacting the resultant modified phenolic resin with a phenol in the presence of an acid catalyst to thereby lower the molecular weight of the modified phenolic resin, and an epoxy resin (B). Also, a prepreg and a process for producing the fiber-reinforced resin plate. This fiber-reinforced resin plate is excellent not only in adhesion to copper and other metals, heat resistance and electrical insulating properties but also in dimensional stability, strength and other mechanical properties, especially those at heating, because of the formation of the matrix by curing of the above resin composition comprising the highly reactive modified phenolic resin (A) and the epoxy resin (B).

REFERENCES:
patent: 3804693 (1974-04-01), Nichols, Jr.
patent: 3923522 (1975-12-01), Hata et al.
patent: 4323412 (1982-04-01), Claybaker
patent: 4391640 (1983-07-01), Okosai et al.
patent: 4398016 (1983-08-01), Homma et al.
patent: 5380789 (1995-01-01), Nanaumi et al.
Patent Abstracts of Japan, No. 155 (P-1562), JP-5-40646, Feb. 19, 1993.

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