Optical adhesive composition

Details Optical adhesive composition Optical adhesive composition

1984-09-06

1986-05-27

Nielsen, Earl

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 87, 528112, 528123, 528402, 156330, C08G 5942, C08G 5930

Patent

active

045916276

ABSTRACT:
The adhesive composition or compound of the invention comprises an epoxy resin, a reactive diluent and a hardener, and at least one of said components contains fluorine atoms. The adhesive composition containing fluorine atoms, according to the invention, provides a cured or hardened composition having small refractive index due to the presence of fluorine atoms. The refractive index of the hardened product may be freely controlled within the range of n.sub.D.sup.23 =1.415 to n.sub.D.sup.23 =1.570.
The adhesive composition may be applied for the production of optical members for use in a communication system utilizing optical fibers or in a variety of optical instruments, and has improved heat resistance and adhesive property and is improved in matching of the refractive index with that of the material used for the optical member, such as optical fibers or glasses having lower refractive index used in a lens system.

REFERENCES:
patent: 3340310 (1967-09-01), Gilbert et al.
patent: 4254000 (1981-03-01), Ohmori et al.
patent: 4267302 (1981-05-01), Ohmori

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