AJAY KUMAR SINGH

Presently associated with Unipatch Rubber limited Ltd. as Deputy. General Manager-R & D & QC. I possesses hands on experience in subject- DOE & its application in rubber compounding Design for given specification, Rubber formulation & product development. Practical application Taguchi (L-9) design as well factorial design in rubber compounding. Also having Good knowledge of reverse engineering of rubber component like TGA & FTIR instrument.

• Nikhil, K. Sinha, Professor in Rubber Technology Department IIT Kharagpur, nikhil@rtc.iitkgp.ernet.in, 09434369873
• R.J., Dell, Consultant and Teacher in American Chemical Society USA, techconsultserv@juno.com, 9193261469, 1001 Tyler Farms Dr., Raleigh, NC, 27601
• S., Morita, Consultant in Japan Synthetic Rubber, s.morita@nifty.com, 0081-78-991-6245, 0651-2275

• Two paper one in Rubber world (Feb. 2017) & other in rubber India (May 2011) has been published.
• One patent on water based adhesive for tyre re-treading application.

• Injection molding machine (make: desma) as well as compression and transfer, extruder cold feed & hot feed, three roll calendar machine, cross-head extruder, Barwell, RPA (multi-function rheometer), ODR & MDR, Mooney viscometer, UTM, Instron (load testing machine).
• FTIR, TGA, FFTF, DEMATIA, SCOTT FLEXING, DIN Abrader, etc.

• Since May 2024 Unipatch Rubber Ltd. Deputy General Manager- R & D
• . Process improvement in Cycle sheet production from press curing to auto clave curing in roll form.
• . Development, set-up & productionalization of Tubeless Tyre sealant lube.
• . Development, setup & productionization of low cost tubeless tyre seal parallel to china seal cost.
• . Process standardization & cure time reduction in Injection moulding section.
• . Development, set up & productionization of water based retreading adhesive solution.
• April 2019 July 2022 Ralson/Ralco India Limited Deputy General Manager- R & D
• . Competitor tyre & tube testing via reverse engineering (TGA & FTIR).
• . Complete Incoming raw material testing and validation.
• . Cycle & auto tyre & tube product testing.
• . Trial of new raw material via DOE in Tyre & tube compound & complete compound quality control.
• . Cost Reduction in Butyl auto via gauge reduction & cycle tube compound via DOE.
• . Process standardization.
• .To conduct Time, Method & motion Study
• . To ensure optimum use of resource that is MAN, MACHINE & MATERIAL.
• . Independently handling butyl tube plant production.
• . Correlation Study of heat build, rebound resilience and Tanδ via DOE.
• May 2012- march 2019 Unipatch Rubber Ltd. Assistant General Manager-R & D
• Key Deliverables:
• Overseeing functions like Product Development, Cost Improvement, & Process standardization. etc.
• Deals with synthetic rubber like EPDM- CIIR blend for tubeless Tyre Valve, Butyl Rubber for tubeless Tyre puncture repair, Aramid composite for high temperature application bladder & radial patches etc.
• Monitoring customer complaints, its analysis & overcome internal rejection analysis.
• Mixing & compounding standardization via 3T (Time, temperature & force/tension)
• To Conduct Time, method and motion study.
• May 2011-May 2012 ALP Overseas/Anand Nishikawa Co. Ltd. R & D Manager
• Developed White & Black Gasket (White Barrel Seal) for HTR & FFPL with good Compression Set, Compressibility & High Strength of different diameter (9mm, 10mm, 11mm, 12 cord) & different Specific Gravity (0.40, 0.60 & 0.80).
• Deals with synthetic rubber EPDM & NBR-PVC.
• Involved in making EPDM & NBR-PVC Insulation Hose & Sheet of density 50 Kg/Cubic Meter for FR & Heat Resistance application and different polyurethane & neoprene adhesive based application, like Suprasec 5005 & 1004 in polymer binder application & other application.
• Jan 2010-Mar 2011 Avadh Rubber Chief Technical Consultant-Product Development
• Handled operation & development of Fire Modified Low Toxicity High Resilience Flexible Polyurethane Foam for Indian Railway.
• Involved in the development procedure of:
• Spheriblocs (Axel Guide Rod & Gear case) for electric loco for Indian Railways.
• Silent Blocks for Anchor Link (BG/ICF Coaches) for Indian Railways.
• Centre Pivot Bush electric loco for Indian Railways.
• Grooves Rubber Sole Pad for the beneath of rail for Indian Railways.
• May 2007-Jan 2010 Bony Polymers Pvt. Ltd. Assistant Manager-R&D
• Handled responsibility for compound design of rubber & other elastomer, rubber processing including manufacturing system design.
• Developed life forecast of elastomer, expanding to product design, manufacturing control & quality control.
• Responsible for handling synthetic rubbers like ECO, Silicone, NBR- PVC (variable ratio in NBR-/PVC), ACM and Vamac, EPDM.
• Promoted research & development of such high quality automotive product design method, production control, quality control, testing evaluation, analysis techniques, utilizing compound design & rubber processing techniques based on high polymer knowledge.
• Established the four processability indices & created an integrated program for processability forecast.
• Developed to predict new compounds processability, contributing smooth scale up test, high accuracy, & quality in factory & end product.
• Analyzed the effect of different type of CaCO3 (ppt & Surface treated) in EVA, EPDM/LLDP, EPDM/ PP & different blend like NBR/PVC, EVA/ NR, EVA/SBR, etc.
• Involved in the study of fibrous Attapulgite nano filler as a dispersing agent for rubber & paints application, jelling effect, improve processing & reinforcement Paints & Rubber.