Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2003-06-18
2008-03-11
Eyler, Yvonne (Bonnie) (Department: 1621)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C556S174000
Reexamination Certificate
active
07342061
ABSTRACT:
The invention relates to a method for producing novel reactive organic compounds containing poly-DOPO and having a higher phosphorus content than known comparable DOPO (9,10-dihydro-9-oxa-10-phospha-phenenthrene-10-oxide) adducts, and to the use thereof for flameproofing thermoplastic polymers, such as polyesters and polyamides. The same flameproofing effect is achieved with smaller additive quantities than previously, thus reducing the influence of the physical, especially textile-physical properties of the polymers. The adducts containing poly-DOPO are formed by reacting DOPO with acetylenes carrying reactive groups, in the presence of a catalyst.
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Heinemann Klaus
Meusel Erich
Mueller Wolfgang
Taeger Eberhard
Eyler Yvonne (Bonnie)
Nwaonicha Chukwuma O.
ProPat L.L.C.
Thueringisches Institut f{umlaut over ())}{umlaut over (})}r Tex
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