Photocurable resin composition and a method for producing the sa

Details Photocurable resin composition and a method for producing the sa Photocurable resin composition and a method for producing the sa

1997-12-04

2000-06-13

Seidleck, James J.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 96, 522 90, 522 93, 522 28, C08F 246, C08G 246, C08J 328

Patent

active

060750650

ABSTRACT:
The invention provides a photocurable resin composition which inhibits the deactivation of a bisacylphosphine oxide-series photopolymerization initiator and is useful for coating optical fibers. The photocurable resin composition comprises (A) a polyurethane (meth)acrylate oligomer, (B) an ethylenically unsaturated compound, (C) a bisacylphosphine oxide-series photopolymerization initiator, and (D) a tertiary amine and no tin component. Incorporation of the component (D) inhibits the decomposition and deactivation of the component (C). The component (A) may contain an aliphatic C.sub.14-40 polyol (hydrogenated dimerdiol, 12-hydroxystearyl alcohol) as a polyol component. This resin composition is used for a primary coating of a glass fiber or an indirect coating of an optical fiber through the primary layer, the coating layer being cured by light irradiation to provide an optical fiber coated with the resin composition.

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Valet, A., "Zur Wetterbestandigkeit UV-hartbarer Pulverklarlack", Farbe & Lack, vol. 102, No. 1, 1996, pp. 40-46. See translation of p. 41 of the reference.
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