Production of colored vinyl polymer particles by polymerizing a

Details Production of colored vinyl polymer particles by polymerizing a Production of colored vinyl polymer particles by polymerizing a

1993-01-12

1994-11-22

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526202, C08F22060, C08F22602, C08F 222, C08F 220

Patent

active

053670396

ABSTRACT:
Disclosed is a process for preparing a colored polymer without color change between a reactant color dye and an obtained polymer. The process of the present invention comprises polymerizing a vinyl polymerizable monomer (A), and a polymerizable dye (B) prepared by reacting a (meth)acryloyl compound having a group reactive with an active hydrogen, with a dye represented by the formula: ##STR1## wherein R.sub.1 and R.sub.2, which are the same or different, show a hydrogen atom or a group having the formula; ##STR2## (R.sub.3 represents --(CH.sub.2)m-NH.sub.2, or --(CH.sub.2)m-OH, R.sub.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group or an allyl group, n is an integer of 1 to 5 and m is 0 or an integer of 1 to 5), provided that both R.sub.1 and R.sub.2 do not represents a hydrogen atom, X and Y, which are different, --OH or --NHR.sub.1,
in the presence of a polymerization initiator, and a color difference between the polymerizable dye and the obtained colored vinyl polymer is within .+-. 3 nm by absorption spectrum.

REFERENCES:
patent: 3637596 (1972-01-01), Gulbins
patent: 4943617 (1990-07-01), Etzbach

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