Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-06-08
1991-10-15
Morgan, Kriellion
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 91, 524 99, 524100, 524102, 524103, 8442, 8490, 428375, 428394, C08K 534, C08K 532, D02G 300, B32B 1500
Patent
active
050575627
ABSTRACT:
A process is disclosed for the photochemical stabilization of undyed and dyed polypropylene fibre material with light stabilizers, which process comprises treating said material with an aqueous solution containing a light stabilizer from the class of the sterically hindered amines.
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Ciba-Geigy Corporation
Dohmann George R.
McC.Roberts Edward
Morgan Kriellion
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