Deuteron® MM 669

Identification & Functionality

Chemical Family

Polymethyl Urea

CASE Ingredients Functions

Flattener

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Surface Modifiers

Features & Benefits

Labeling Claims

Biodegradable

CASE Ingredients Features

Blocking Resistance,

Chemical Resistance,

Excellent Scratch Resistance,

Improved Mechanical Resistance,

Matting,

Polishing Resistance

Product Highlights

• Deuteron®® MM 669 is synergistic com- pounds of organic duromeric PMU powders (Polymethyl urea) with inorganic matting agents. They are particu- larly suitable as matting agents for radiation-curable systems.
• Deuteron®® MM 669 is especially designed to show a high matting performance with low influence on the final coating viscosity – a key property in many 100 % UV curable systems.

Applications & Uses

Cure Method

Radiation Cure

Coating Type

Radiation Curable Coating,

Solventborne Coating,

Waterborne Coating

Application and Dosage Information

Deuteron® MM matting agents can be used in almost all coating applications ranging from water borne and solvent borne to 100 % systems. They can be used as stand-alone additives or in combination with other ma- terials to further improve their properties.

The use of Deuteron® MM 659 an MM 669 especially improves the following properties:

• Good matting effect
• Low influence on viscosity
• High mechanical and chemical resistance
• High scratch resistance and resistance to polishing
• Support of soft effects.
• Temperature resistant up to over 200 °C, short- time up to over 300 °C
• Pleasant touch feeling
• Improved blocking resistance
• Insoluble in solvents commonly used in coatings
• Polymer content biodegradable
   

Dosage

• Typical addition range: 100 % UV curable: 1 %–12 % w/b or s/b UV: 1 %–10 %
• The required dosage level highly depends on the system (e.g. binder type, additives, solvent content) and appli- cation parameters. Thus, it is highly recommended to determine the needed addition level by a practical ladder study.

Processing

The PMU chemistry in general is highly compatible in a wide range of systems. Due to that Deuteron® MM mat- ting agents can be incorporated easily by a high-speed stirrer without the need for specific wetting agents or dispersing aids. They are shear stable in high shear pro- cesses but should not be ground in a bead mill.

Properties

Physical Form

Powder

Appearance

Fine white powder

Typical Properties

	Value	Units	Test Method / Conditions
Density	approx. 1.6	g/cm³	-
Particle Size (dv 50)	approx. 6.3	μm	-
Particle Size (dv 90)	approx. 14.5	μm	-

Characteristics

	Value	Units	Test Method / Conditions
Oil Absorption (Palatinol N)	approx. 183	g/100g	DIN ISO 787/5

Packaging & Availability

Packaging Type

Bags

Regional Availability

• Canada
• Mexico
• USA

Packaging Information

• Paper bag (10 kg net)

Storage & Handling

Shelf Life

24 months

Storage and Shelf Life Conditions

• 24 months at room temperature and dry conditions.
• Storage temperature should not exceed 35 °C.