Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-01-22
1986-02-18
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524577, 524579, 524560, C08K 501
Patent
active
045714169
ABSTRACT:
A polyolefin compatable liquid colorant/additive concentrate for molding plastics. The colorants and additives are conventional pigments and additives. The vehicle contains (A) a low molecular weight addition polymer, such as a polybutene, a polystyrene, a poly alpha-methyl styrene/vinyl toluene copolymer, or an acrylic polymer or copolymer, and (B) an essentially non-volatile solvent for the low molecular weight addition polymer which has a boiling point of at least about 450.degree. F. and which is compatable with the resin to be colored. The liquid concentrate has a Brookfield viscosity between about 1000 and 40,000. The colorant concentrate produces uniform color finished products, without visible streaks or specks. It also eliminates screw slippage.
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Jarzombek Richard E.
Moeller Raymond J.
Bee Chemical Co.
Michl Paul R.
Sarofim N.
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