Fluorescent Pigments

Product Specifications

Prod Model:	Organic Pigment
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Brand Name:	Unite Star
Use:	Plastic Coatings
Substrate:	Plastic
Appearance:	Powder
Method:	Water
Level:	Finish Coat

Product Description

1. A low plate-out fluorescent pigment concentrate consisting essentially of:

(A) from about 5 up to about 40 weight percent of a fluorescent pigment, based upon the total weight of the fluorescent pigment concentrate;

(B) about 5 to about 20 weight percent of an inert inorganic filler, based upon the total weight of the fluorescent pigment concentrate, said inert inorganic filler having an average particle size of about 2 microns or less;

(C) a minimum of 2 up to about 10 weight percent of silica gel or a precipitated silica, based upon the total weight of the fluorescent pigment concentrate;

(D) from about 1 to about 10 weight percent of an organic polymer selected from the group consisting of (I) an oxidized polyethylene wax, (ii) an unoxidized polyethylene wax, (iii) a low molecular weight ethylene acrylic acid copolymer, (iv) a bivalent metal salt of (iii), and (v) a combination of at least two of (I), (ii), (iii) and (iv), based upon the total weight of the fluorescent pigment concentrate; And

(E) the remainder being an ethylene polymer up to 50 weight percent, based upon the total weight of the fluorescent pigment concentrate, the molecular weight of the ethylene polymer being substantially higher than the molecular weight of the oxidized or unoxidized polyethylene wax.

2. The products wherein about 20 to about 38 weight percent of the fluorescent pigment is present.

3. The products wherein the fluorescent pigment is a member of the series of heat-stable fluorescent pigments.

4. The products wherein about 10 to about 15 weight percent of the inert organic filler is present.

5. The products wherein the inert organic filler is precipitated barium sulfate or Buca Clay, which is a type of aluminum silicate.

6. The products wherein about 2.0 to about 10 weight percent of a silica gel or a precipitated silica is present.

7. The products wherein the silica gel is an aerogel synthetic particle silica or the precipitated silica.

8. The products wherein the organic polymer is an unoxidized polyethylene wax.

9. The products wherein the organic polymer is an oxidized polyethylene wax.

10. The products wherein the organic polymer is a low molecular ethylene acrylic acid copolymer.

11. The products wherein the inert inorganic filler has an average particle size of about 1 micron or less.

12. The products wherein the organic polymer is a bivalent metal salt of an oxidized polyethylene wax, or a low molecular ethylene acrylic acid copolymer.

13. The products wherein the bivalent metal is zinc or magnesium.

14. The products wherein also up to about 10 weight percent of titanium dioxide, based upon the total weight of the fluorescent pigment concentrate, is present.

15. Process for preparing the low plate-out fluorescent pigment concentrate, consisting essentially of:

(A) from about 5 up to about 40 weight percent of a fluorescent pigment;

(B) about 5 to about 20 weight percent of an inert inorganic filler, having an average particle size of about 2 microns or less;

(C) a minimum of 2 up to about 10 weight percent of silica gel or a precipitated silica;