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Halogen-free Laminates - Flame Retardants-Online

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Review of halogen-<strong>free</strong> <strong>Flame</strong> <strong>Retardants</strong><br />

• Phenylphosphonic acid esters<br />

• Phosphine oxide derivatives<br />

A number of patents (such as US pat. no. 6645631 Dow Chemical<br />

Company) describe the reaction of a.m. phosphorus compounds<br />

onto the epoxy backbone. Patents and other literature demonstrate<br />

acceptable electrical and mechanical properties and suggest<br />

possible use in PWB applications.<br />

<strong>Halogen</strong>-<strong>free</strong> <strong>Laminates</strong>:<br />

The technology is there for<br />

an emerging market<br />

Public<br />

Marketing Thermosets<br />

BU Specialties<br />

Div. P&A<br />

09.06.2006<br />

Slide 12<br />

Market significance can not be assessed, but the raw materials are<br />

available from different suppliers, supporting commercial<br />

availability.

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