Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1994-11-18
1996-03-19
Jagannathan, Vasu S.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
525301, 525309, B32B 2730, C08F26502, C08F26504, C08F25702
Patent
active
055002862
ABSTRACT:
A multi-shell emulsion particle of dry state structure having one or more of penetrating pore(s) connecting the surface layer of the particle with the interior of the particle and having a particle diameter of from 0.1 to 5.0.mu. preferably from 0.1 to 1.2.mu.. The particles can be prepared by carrying out emulsion polymerization of a vinyl monomer (a) containing from 5 to 80% by weight of an unsaturated carboxylic acid to obtain a polymer (A), forming a polymer (B) in the presence of a particle consisting of the resultant polymer (A) while adding a vinyl monomer (b) in an amount of 10 times by weight or less and at a rate of 3 times by weight per hour or more for the weight of the polymer (A), and treating the resultant multi-shell emulsion polymer with an alkaline material to neutralize and swell the polymer (A); or, after the neutralization treatment, further forming a polymer (C) by adding and emulsion-polymerizing a vinyl monomer (c) in an amount of 20 times by weight or less for the total weight of the polymer (A) and polymer (B). The emulsion particle is useful as a component of resin compositions for paints, paper-coating and heat-sensitive recording materials.
REFERENCES:
patent: 3931061 (1976-01-01), Kohne Jer. et al.
patent: 4427836 (1984-01-01), Kowalski et al.
patent: 4728595 (1988-03-01), Hayashi et al.
patent: 4885320 (1989-12-01), Biale
patent: 4972000 (1990-11-01), Kawashima et al.
patent: 5041464 (1991-08-01), Hoshino et al.
patent: 5273824 (1993-12-01), Hoshino et al.
English Abstract of JP 59-59741. (1984).
English Abstract of JP 63-281886. (1988).
Hoshino Futoshi
Someya Kousuke
Yamazaki Akihiro
Yanagihara Takeshi
Jagannathan Vasu S.
Mitsui Toatsu Chemicals Incorporated
LandOfFree
Multi-shell emulsion particle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-shell emulsion particle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-shell emulsion particle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1958400