PLASTICS ADDITIVESAN INDUSTRIAL GUIDE phần 7 potx

Section XXV

Miscellaneous & Multipurpose

Compounds

Miscellaneous & Multipurpose Compounds 111

Claude Bamberger Molding Compounds Corp.: BAMBERKO ULTIMAX

Purging Compound:

Hi-molecular Ultimax is formulated to purge all types of

engineering and thermoplastic materials.

It will not damage or scratch injection cylinders and extrusion

barrels.

It is recommended for use in swift color or resin changeovers

and to clean equipment of carbonized residue

Ultimax will not melt completely, and is designed to purge hi-heat

and high temperature engineering plastics and other difficult purging

jobs.

While most purging compounds work best in a 350-450F (176 to 230

Celsius) range, Ultimax is designed for use in purging high heat

engineering plastics in the 450-525F (230 to 275 Celsius) range.

Compared to other purge compounds, Ultimax will clean equipment

more quickly and more efficiently in a considerable saving of a

manufacturer’s ‘downtime’. In most instances it will work without

the need to change temperatures.

Produced from prime resin, Ultimax is recommended for use in FDA

approved food contact items...

...as well as for manufacturing medical products

Ultimax minimizes unpleasant odors and fumes, making it

environmentally friendly.

112 Plastics Additives

Buckman Laboratories, Inc.: Successful Applications of BUSAN

11-M1 in Plastic and Rubber Compounds:

Busan 11-M1 is a multifunctional barium metaborate pigment used as a

fire retardant, fungus inhibitor, and UV light stabilizer in polyvinyl

chloride and other plastic and rubber compounds. Typical of PVC

products compounded with Busan 11-M1 are automotive tops and trims,

inflatable buildings, pond liners, roofing, and plastic-coated fabrics

such as tarpaulins and awnings.

The effectiveness of Busan 11-M1 as a fire retardant is restricted

to polymers containing a halogen donor or to which one can be combined.

Bromine compounds are somewhat more effective than other halogens but

chlorinated paraffin and chlorindic anhydride have performed very well.

Experience has indicated that Busan 11-M1 can replace antimony

trioxide in most fire retardant formulations. Subject to the degree of

halogenation and the degree of fire resistance required. Replacement

can be 50 to 100%.

In addition to providing after-flame resistance, Busan 11-M1 also

reduces the time of afterglow (i.e., flameless combustion) and in many

formulations reduces the amount of smoke generation. Other advantages

over antimony trioxide are the low refractive index of Busan 11-M1

which prevents interference in tint and dye requirements and the

fungicidal activity that characterizes barium metaborate.

Busan 11-M1 is well known as a fungicide for coatings and plastics.

Its advantages in plastics and plastic-coated fabrics over conventional

organic fungicides are longevity in the film and efficacy unaffected by

UV exposure. Products particularly susceptible by fungal disfigurement

and/or deterioration include pond liners, tarpaulins, awnings, and

shower curtains.

Busan 11-M1 provides UV light stabilization to most polymeric

materials including PVC and glass-reinforced polyester. Its durability

in these materials is outstanding and thus extends the performance of

UV absorbers.