Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-06-28
1996-09-24
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
430109, 523326, 523332, 523335, 528491, 528486, 528496, 528497, 528499, C08J 312, G03G 908, G03G 9083
Patent
active
055591680
ABSTRACT:
A method for the production of microfine colored particles, characterized by subjecting a polymeric monomer suspended in a suspension medium to suspension polymerization in the presence of a coloring agent and/or a magnetic powder thereby forming microfine globular colored particles possessing an average particle diameter in the range of from 3 to 50 .mu.m, heat treating said microfine globular colored particles with water as a heating medium at a temperature in the range of from 50.degree. C. to 130.degree. C. thereby inducing fusion of said particles and giving rise to blocks of fused particles, and then disintegrating said blocks of particles to an average particle diameter substantially equal to the average particle diameter of said microfine globular colored particles existent prior to said fusion.
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Kushino Mitsuo
Mori Yoshikuni
Oishi Hideki
Yoneda Tadahiro
Behr Esq. Omri M.
Merriam Andrew E. C.
Michl Paul R.
Nippon Shokubai Co. , Ltd.
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