Dsm N.v.

Dsm Desotech, Inc.

Dsm IP Assets B.v.

Chander P Chawla

David M Szum

Timothy Edward Bishop

Paul Eugene Snowwhite, Jr

Edward P Zahora

James R Petisce

George Pasternack

John Alan Lawton

Stephen C Lapin

John T Vandeberg

Anthony Joseph Tortorello

Eva Montgomery

John Monroe Zimmerman

Gerry K Noren

Tsuyoshi Watanabe

Katsutoshi Igarashi

Steven R Schmid

Tohru Ohtaka

Christopher F Tronche

James J Schouten

Shinichirou Iwanaga

James M Julian

The present invention relates to a radiation-curable solvent-free coating composition for optical fiber having a radiation-curable urethane (meth)acrylate oligomer comprising an alkyd backbone,a reactive diluent, and a photoinitiator, and optionally an additive.

Radiation-curable coating composition

The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness. The compositions include:

Coating compositions for plastic substrates

This invention discloses compositions adapted to produce, through solid imaging means, excellent quality objects having material properties that simulate the look and feel of polypropylene articles.

Solid imaging compositions for preparing polypropylene-like articles

Optical fiber coatings are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be achieved by several means which include by use of additives, by use of radiation-curable oligomers having higher molecular weight, or by use of coatings having certain thermal properties. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.

Radiation-curable optical glass fiber coating compositions, coated optical glass fibers, and optical glass fiber assemblies

The present invention relates to a radiation-curable solvent-free coating composition for optical fiber having a radiation-curable urethane (meth)acrylate oligomer comprising an alkyd backbone, a reactive diluent, a photoinitiator and, optionally, an additive.

Radiation-curable compositions comprising oligomers having an alkyd backbone

Optical fiber primary coating systems are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be inner piramry coating composition having a slip enhancing component and a high modulus outer primary coating composition. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.

Radiation-curable, optical fiber primary coating system

A fast curing radiation-curable composition useful as coating compositions for inner and outer primary coatings, inks, ribbons other matrix material coating layers for coating and surrounding optical fibers. The improved radiation-curable compositions, having a propoxylated monomer or oligomer component, demonstrate unexpectedly fast cure speeds while providing strong adhesion characteristics to a variety of substrates and can also be used as a general radiation-curable adhesive or can be adapted for use in the specialized process of digital versatile disk (DVD) production.

Radiation-curable composition having high cure speed

A radiation-curable, optical fiber coating composition has enhanced color stabilization and is formulated from a composition containing at least one radiation-curable oligomer or monomer. A concentration of urethane and ether linkages in the radiation-curable composition is such that a cured optical fiber coating formed from said radiation-curable composition exhibits a &Dgr;E of about 40 or less after being exposed for 96 hours to 150&deg; C. and then for 144 hours to 180&deg; C. Also provided is a radiation-curable optical fiber coating composition which is substantially urethane-free.

Radiation-curable coating compositions, coated optical fiber, radiation-curable matrix forming material and ribbon assembly

A method of making radiation-curable, fiber optic materials having extended shelf-life and reduced water content which when suitably cured provide reliable and consistent adhesion characteristics to optical glass fibers.

Radiation-curable fiber optic materials having reduced moisture content

Radiation-curable inner and outer primary optical fiber coatings are disclosed having both fast cure speed and reduced rates of yellowing. The compositions comprise particular photoinitiators and UV absorbers which are used in amounts to provide the combination of properties. The UV absorber can have ethylenic unsaturation. Outer primary coatings can be formulated to screen inner primary coatings and have fast cure speed.

Radiation-curable optical fiber coatings having reduced yellowing and fast cure speed

Optical fiber primary coating systems are disclosed having excellent ribbon stripping and adhesion behavior. The coatings are radiation-curable. The excellent stripping and adhesion behavior can be inner primary coating composition having a slip enhancing component and a high modulus outer primary coating composition. Combination of means can be employed. Stripping behavior can be measured by crack propagation and fiber friction measurements.

Growing community of inventors

Batavia, IL, United States of America

Chander P Chawla