C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 29/28 (2006.01) C08K 5/23 (2006.01) C08K 5/42 (2006.01) C09B 29/15 (2006.01) C09B 63/00 (2006.01)
Patent
CA 2187147
A plastics composition comprising a high molecular weight material and an effective colouring amount of an azo pigment of formula (see formula I) where M is Mg, Ca, Sr, Ba or Mn or a mixture of two or more thereof, R1 and R2 are chlorine or methyl, x is zero or 1, y is zero or 1 and the sum of x and y is 1, with the proviso that when the high molecular weight material is polyvinyl chloride y is zero.
Fraser Iain Frank
Maclennan Alison
Macpherson Ian Alexander
Ag Ciba-Geigy
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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