Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-12-22
1997-04-29
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523454, 523455, 523456, 525507, 528104, 528108, 528398, 428413, C08G 5914, C08L 6300
Patent
active
056249799
ABSTRACT:
The present invention relates to phosphorus-modified epoxy resins having an epoxide value of 0 to about 1 mol/100 g containing structural units which are derived from
(A) polyepoxide compounds having at least two epoxide groups per molecule and
(B) phosphinic and/or phosphonic acid anhydrides, wherein at least one phenolic antioxidant is admixed to them. The phosphorus-modified epoxy resins stabilized in this way are distinguished by an increased storage stability, in particular at higher temperatures.
The invention furthermore relates to the use of these stabilized, phosphorus-modified epoxy resins for the production of shaped articles, coatings or laminates.
Kleiner Hans-Jerg
Regnat Dieter
Hoechst Aktiengesellschaft
Krass Frederick
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