Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ethylenically unsaturated reactant admixed with either...
Patent
1993-12-27
1995-04-25
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ethylenically unsaturated reactant admixed with either...
528103, 528176, 528190, 528192, 528194, 528272, 528298, 528300, 528303, 528308, 5283086, 525 10, 525165, 525173, 525437, 525445, 430120, C08G 63195, G03G 908
Patent
active
054099897
ABSTRACT:
A resin composition for toners, composed essentially of a suspension polymerizate of:
(a) 5 to 40% by weight per total polymer of a polyester comprising at least one aromatic diol component an at least one aliphatic diol component, and having a weight average molecular weight of 3,000 to 30,000, an acid value of 0.5 to 10 mgKOH/g, and an OH value of 10 to 60 mgKOH/g;
(b) 60 to 95% by weight per total polymer of a vinyl monomer; and
(c) 0.1 to 1.0% by weight per total polymer of a divinyl monomer,
wherein said suspension polymerizate has
a glass transition temperature of 40.degree. to 70.degree. C.,
an acid value of 0.1 to 10 mgKOH/g, and
a softening temperature of 100.degree. to 160.degree. C.
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Pat. Abst. of Japan, vol. 5, No. 191 (P-92) (863) 5 Dec. 1981 & JP-A-56 116 043, 11 Sep. 1981.
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Pt. Abst. of Japan, vol. 6, No. 137 (P-130) (1015) 24 Jul. 1982 & JP-A-57 060 339 12 Apr. 1982.
Angewandte Makro. Chemie, vol. 165, No. 2708, Jan. 1989, pp. 125-131.
Inagaki Motoshi
Ito Hirokazu
Ito Masahiro
Takahiro Syuji
Yoshida Keiji
Acquah Samuel A.
Mitsubishi Rayon Co. Ltd.
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