Resin particle and manufacture method thereof

Resin particle and manufacture method thereof

  • CN 102,597,012 B
  • Filed: 11/17/2010
  • Issued: 09/23/2015
  • Est. Priority Date: 11/18/2009
  • Status: Active Grant
First Claim
Patent Images

1. resin particle, it is that inorganic dispersant is attached to surface, volume average particle size is the resin particle of 2 ~ 1000 μ

  • m, exist in described resin particle from the cumene hydroperoxide as oil-soluble polymerization initiator, di-t-butyl peroxide, dicumyl peroxide, Benzoyl Peroxide, lauroyl peroxide, two (tert-butyl peroxide) hexane of dimethyl, two (the tert-butyl peroxide)-3-hexin of dimethyl, two (t-butylperoxyisopropyl) benzene, two (tert-butyl peroxide) trimethyl-cyclohexane, butyl-bis-(tert-butyl peroxide) valerate, the peroxidation 2 ethyl hexanoic acid tert-butyl ester, dibenzoyl peroxide, p-menthane hydroperoxide, peroxidized t-butyl perbenzoate, 2, 2-Diisopropyl azodicarboxylate, 2, 2-azo two-2-methylbutyronitrile, 2, 2-azo two-2, 4-methyl pentane nitrile, 2, 2-azo two-4-methoxyl group-2, 4-methyl pentane nitrile or 2, the structure of 2-azo two (2 Methylpropionic acid methyl esters), by following formula (I);

    The resin particle specific surface area of amount of coating=(amount of the amount/polymerizable monomer of inorganic dispersant) of the inorganic dispersant on resin particle surface/recorded by Malvern instrument company laser diffraction formula particle size distribution device Master Sizer2000 ... (I)The amount of coating of the described inorganic dispersant on the described resin particle surface of trying to achieve is 0.0001 ~ 0.02g/m 2, The addition when inorganic dispersant on formula (I) the right and the amount of polymerizable monomer are resin particle manufactures, unit is weight part, and the amount of polymerizable monomer is set as 100 weight parts,This resin particle is obtained by the method comprising following operation,[operation 1] stirs the composition comprising water-medium, polymerizable monomer, described oil-soluble polymerization initiator, inorganic dispersant and emulsifying agent, form the operation that oil droplet is scattered in the dispersion liquid in water-medium, in this operation, relative to described polymerizable monomer 100 weight part, use the described inorganic dispersant of 0.01 ~ 0.4 weight part, the described emulsifying agent of 0.0001 ~ 0.1 weight part;

    [operation 2] stirs described dispersion liquid while heat, and described polymerizable monomer is carried out the operation of suspension polymerization.

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