Other Markets > Environmentally-responsible pigments NEOLOR™

 

Environmentally-responsible pigments NEOLOR™

• Rare Earths Sulfide based Pigments
• Regulatory Compliance
• High Performance
• Plastic and Paint Colorations
• UV Absorption
• Color Range

Inorganic NEOLOR™ pigments having a base of rare earth sulfides are making great strides forward in health and environment and offers an innovative alternative to inorganic pigments with heavy metals and a performing technical solution to organic pigments bases.

• Rare Earths Sulfide based Pigments

Rare Earths sulfides do not exist naturally. They must be processed synthetically to be produced in industrial quantities. Rhodia Electronics & Catalysis' development of expertise in sulfide chemistry at the Aubervilliers Research Center has made it possible to perfect a process that is both unique and innovative. This research resulted in constructing and starting up industrial units since 1997.

 
• Regulatory Compliance    

NEOLOR™ is a range of inorganic pigments. Developed from a base of rare earth sulfides, these pigments comply with European regulations pertaining to contact with food (EC 90/128) and to toy standards (E.N. 71). They are a high performing alternative to pigments with cadmium and lead bases. 		 
   

• High Performance 		   


NEOLOR™ pigments possess qualities suitable for high performance pigments:

  • thermal stability (stable to 350°C)
  • stability in bad weather and under exposure to UV rays
  • opacity
  • resistant to migration
  • dimensional stability when incorporated into crystalline polymers
  • ease of dispersion
  

• Plastic and Paint Colorations		    

As a result of their technical characteristics, NEOLOR™ pigments can be used for coloring plastics and paints (powder, coil, automobile) . Their thermal stability, weather ability and UV absorption properties make them especially build for engineering resins (ABS, PA, PC, POM, …) and outdoor applications.		  

• U.V. Absorption

UV Absorption: due to Cerium properties, the Neolor pigments are acting as UV Absorber in formulations improving UV resistance and protecting the resin.

• Color Range

The current color range extends from light orange to burgundy, to offer a greater variety of colors that can be used by various markets.

There are four tints already available:

  • light orange (P.O. 78)
  • orange (P.O. 75)
  • red (P.R. 265)
  • burgundy (P.R. 275)

Technical properties

 NEOLOR™
Light
Orange S 		NEOLOR™
Orange S		 NEOLOR™
Red S		 NEOLOR™
Burgundy S

Color index

PO 78
C.I. 772850

PO 75
C.I. 77283-1

PR 265
C.I. 77283-2

PR 275
C.I. 772830

CAS number

12014-93-6/
12031-49-1

12014-93-6

12014-93-6

12014-93-6

Specific gravity (g/cm3)

5

Apparent density (g/cm3)

0.6 – 0.8

Typical particle size
de particule (µm)

1.0 – 2.0

Sieve residue 325
mesh 44 µm (%)

< 0.3

PH

7 – 9

Hardness (mohs)

4 – 5

Oil absorption
(g/100g)

20 – 28


Performance Properties

Light Orange S

Orange S

Red S

Burgundy S

Tinting strength

Expressed in g. of pigment per kg of plastic, which is required, together with 1 % rutile TiO2, to attain the standard color depth of 1/25, according to DIN 53235.

 

4

3

2.6

2

Heat resistance

Temperature at which discoloration of delta E = 3 is attained according to DIN 6174. Tests are performed in the injection molding process, 5 minutes dwell time, according to DIN 53772

 

PP

ABS

PC

PA 66

 

> 320°

> 290°

> 320°

> 320°

Light fastness

Expressed on the 8 step blue scale according to DIN 53388

 

PP

ABS

PC

PA 66

 

8

8

8

8

Weather fastness
Masstone 1 %

Expressed as delta E after x hours of exposure to a Xenon arc accelerated weathering equipment for ABS and PC; delta E after 2 years Florida exposure for PP and PA6

PP

< 1.5

< 1.5

< 1.5

< 1.5

ABS

1.3
(300 hrs)

2.0
(300 hrs)

0.9
(300 hrs)

0.9
(300 hrs)

PC

1.4
(1500 hrs)

1.4
(1500 hrs)

1.4
(1500 hrs)

1.4
(1500 hrs)

PA 6

1.7
(1000 hrs)

2.9
(1000 hrs)

3.5
(1000 hrs)

Migration (bleeding)

No bleeding observed (tested in ldPE, hdPE, PP, PS, ABS and PC)

Warping

No shrinkage or dilatation
(tested in hdPE)


• Contacts

If you want to know more about NEOLOR™ pigments or would like a sample, please contact:
ec-omarkets@eu.rhodia.com