Composite resin particle with specific shape factor

Details Composite resin particle with specific shape factor Composite resin particle with specific shape factor

2006-10-17

2006-10-17

Le, H. Thi (Department: 1773)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

Reexamination Certificate

active

07122250

ABSTRACT:
The invention is a composite resin particle useful as an additive for paints or coatings, powder coatings, cosmetic additives, slush molding resins, spacer for electronic part assembly, standard particles for electric measurement devices, toner, hot melt adhesive as well as other molding materials. Said composite resin particle comprises a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the shape factor (SF-1) of said composite resin particle is 115 to 800. It is also a composite resin particle comprising a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the acid vale of a resin (b) constituting the resin particle (B) is 5 to 100.

REFERENCES:
patent: 4837107 (1989-06-01), Axelsson et al.
patent: 5863697 (1999-01-01), Uchiyama et al.
patent: 6106990 (2000-08-01), Tazawa et al.
patent: 2003/0125479 (2003-07-01), Kinsho et al.
patent: 1 283 236 (2003-02-01), None
patent: WO-01/60893 (2001-08-01), None

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