Polyhydroxybutyrate, a biodegradable polymer, has so far been produced using enzymes. These laboratory routes to make PHB have used enzymes to convert glucose to hydroxybutyrate, which is subsequently polymerized. The resultant is a brittle product and therefore has limited uses. Two scientists, who were recepients of Philip Morris 2006 Research Award, have developed a new catalyst system based on silica, cobalt & nitrogen. The starting material used for polymerization is propylene oxide and carbon monoxide. Professor Bernahrd Rieger of Ulm University and Dr Gerrit Luinstra of BASF in Ludwigshafen first revealed the technique earlier this year, said to be more economical than previous laboratory routes. The development promises PP-like performance with a 50% reduction in oil consumption
The catalyst used may be modified so that PHB with harder or softer characteristics is obtained, enabling the material to be used in applications as varied as film for shopping bags or sheet for yoghurt cups. Injection mouldable product also could be developed for several application segments including automotive. Polyhydroxybutyrate (PHB) and its copolymers with polyhydroxyvalerate (PHV) are melt-processable semi-crystalline thermoplastics made by biological fermentation from renewable carbohydrate feedstock. They have been described as �the first example of a true thermoplastic from biotechnology� and are also biodegradable. Although quite stable under everyday conditions they degrade slowly in the body and when composted or in landfill sites.
Copolymer has better prospects since it has better properties compared to homopolymers. Homopolymer seems to be too brittle. Besides, homopolymer has a tendency to biodegrade much faster and therefore lose value due to limited service life. One weaker aspect of this group of polymer and copolymer is that both of them have poorer chemical resistance. They are easily attacked by acid as well as alkalies. Chlorinated solvents also dissolve this group of polymer and copolymer.
A polymerization process/catalyst system to produce biodegradable PHB
20-Nov-23
Dear Sir, Good day Please share the additive details to avoid odor/smell issues with the Water and beverage HDPE caps/closures
05-May-23
What is the name of the new polymeric stripping agent from BYK-Chemie to help reduce odors in PP bottles?
22-Jan-23
I need a product to remove bad odors/smells from pelletized Poly prop when used on injection moulding machines
18-Sep-22
I wish to buy the product
17-Mar-22
Hello we are manufacturer of recycled plastic granuals and want to remove smell from my product
02-Dec-21
Respected sir/madam I need chemical to remove the odor of recycle polymer ( L D P E / H D P E)after processing. Thanks
10-Sep-21
We Want To Neuatralize The Bad Odour Of Recycled Lubricating Oil, To Odourless Let Me Know If You Can Assits In Solving This Problem.
11-Jun-21
To remove bad smell from reprocessed milky PP granules
16-Apr-21
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03-Apr-21
Hi we are manufacture of reclaim rubber EPDM sheets from scrap type we need some additives to control odour while process if you have solution please contact me.
01-Oct-20
For odour absorbing additive Mail us shinewax@gmail.com Call us at 09910969558
01-Oct-20
shinewax@gmail.com
17-Aug-20
Hi, We are recycling HDPE from oil canisters we are looking for additives that can absorb the oil smell.
23-Jul-20
Hi we are manufacture of reclaim rubber sheets from scrap type we need some additives to control odour while process if you have solution please contact us
26-Feb-20
Sir, We needs all types foul smell remover products for plastics and food application.pl send details.
11-Jan-20
We are making pvc granules from ICW cables, Main complaint from buyer is about odor.. Do you have a dedicated product for PVC? Its really helpful for us if your chemical solve our problem.. pls contact me if you have any product for our pupose. thanks
18-Oct-19
We 're pallet plastic manufacturer from 100% recycle plastic (HDPE, LDPE & PP) in Indonesia Odor/ smell on our raw material or even after becoming a finished product is our main problem. Could you please send the detail TDS or MSDS and also price quotation about your product? I' m very interesting to know more about your product Thank You
16-Sep-19
Hi, We are an compounding industry and we are doing compounding specially in polypropylene, we are using reprocess material too. So we need ur support to solve the odour issue from our product. our limitation is to follow the EU regulation for the material, so as per mentioned above if it can solve the issue then please suggest.
15-May-19
Hello, Could kindly send me more information about the product to my email. I am interested in buying it.
04-May-19
Odours removing chemicals for Polypropylene granules l iam looking to buy it in Mumbai so please suggest something
08-Feb-19
Hi, I’m looking for odour remover chemical, which can remove the odour from recycling Polymer. Regards Vishwajit Singh Mob.- 7674895320
07-Feb-19
Do you have a dedicated product for PVC? odorless or odor absorbed in Wire and Cable Industries. Please introduce me if you know other companies with these conditions. thanks
20-Dec-18
I am very interested for this product.
04-Apr-18
I am a plastic industry MD
23-Feb-18
I m interested to buy material