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FKuR extends product range of cellulose acetate based injection molding grades

German bioplastic specialist FKuR Kunststoff has added two new injection molding grades to its Biograde portfolio of bioplastics.

The new Biograde C 5509 CL and C 5508 grades expand the firm’s cellulose acetate based injection molding grades.

Based on newly developed combination of raw materials and additives, the new grades can be easily processed with short cycle times on standard injection molding machines with universal screws even in multi-cavity molds.

The company has increased ASTM D 6866bio-based content (BCC) from 50% to around 65% in new injection molding grades.

According to the company, the cellulose used in the new grades is taken from sustainable forestry wood but not tropical wood.

The transparent Biograde C 5509 CL is thermally stabilized, which enables to provide a softening temperature of 100 °C and heat distortion temperature (HDT B) of 80 °C.

Due to the high melt flow index, the Biograde C 5509 CL can be used for the production of components with thin wall thicknesses and long flow paths. I can also be colored with the appropriate masterbatch.

Biograde C 5508 is a translucent cellulose compound with a lower MFR (18 to 25 g/10 min [230 °C/5 kg]) compared against C 5509 CL. It will be mostly used for smaller and thicker-walled injection-molded parts.

The firm’s Biograde compounds can be used in different applications, including injection molded engineering parts, as well as consumer products such as toothbrushes, ball-point pens or cutlery.

The company will exhibit nee grades and other products at this year’s Interpack event in Düsseldorf of Germany, which is being held from 4 to 10 May.


Image: Tooth brush made from Biograde® C 5509 CL. Photo: courtesy of FKuR.