A TECHNO-ECONOMIC NEWS MAGAZINE FOR MEDICAL PLASTICS AND PHARMACEUTICAL INDUSTRY
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Materials

Hexamoll Dinch - A Non Phthalate Plasticizer: For Medical Devices And Food Contact Application

Hexamoll® DINCH® - a Non Phthalate Plasticizer is an alternate to Phthalate Plasticizers specially developed for use in sensitive applications like Medical Devices & Food Contact Application items.

The safe Plasticizer is the most sustainable non-phthalate plasticizer. As a matter of fact, DINCH was ranked first in the recently updated eco-efficiency analysis comparing different plasticizers. Since 2002 Hexamoll® DINCH® is an established plasticizer in the market and offers maximum safety. Several leading brands in toy and medical industry now put their trust in this alternative plasticizer.

Chemically, it belongs to the family of aliphatic esters:

  • 1,2-Cyclohexane di-Carboxylic Acid di-Iso-Nonyl Ester

It offers excellent formulation performance when compared with common ortho & non ortho phthalates. It has processing characteristics similar to DEHP, however, because of its higher molecular weight, it needs slightly higher processing temperature on Mixer/extruder.

Various studies on DINCH have shown that it is not a carcinogen or a mutagen, it shows no reproductive toxicity. With DINCH based compounds, it is possible to produce medical devices that comply with:

EU Council Directive 93/42/EEC (as amended by Directive 2007/47)

DIN EN ISO 10993 for cyco-toxicity, haemolysis, absence of pyrogens, irritation & sensitization, systemic injection, intracutaneous and implant tests to fulfill the requirements of United States Pharmacopeia (USP), monograph 88, Class VI

Main applications for DINCH based compounds are:

  • Dialysis Tubing

  • Intravenous therapy

  • Blood Bags

  • Masks

  • Enteral Feeding

  • Catheters

  • Gloves

KLJ Polymers & Chemicals Limited is already an established manufacturer of a variety of compounds for Medical Device applications. Their range of compounds for Medical Device application include DOP based compounds, Phthalate Free Compounds and now Non-Phthalate (DINCH based) compounds. KLJ Polymers & Chemicals Limited is backed with strong R&D infrastructure, qualified and experienced manpower to undertake development of compounds ranging from regular to specialized applications.

Comparing Polycarbonate and Copolyester Resins For Injection Moulded Medical Components

Both physical properties and processability play key roles when injection-molded parts are mass-produced. When producing medical parts, a consistent, high degree of accuracy is also vital. It is relatively simple to adjust a process to account for differences in molecular weight once that process is optimized for a specific polymer. It is much more complex to adjust the process for changes in polymers.

The three transparent resins - a standard medical grade polycarbonate, a high heat polycarbonate, and a medical copolyester resin are compared here.

The medical copolyester stands for the greater weight variability. It is at least partially due to the greater viscosity fluctuations that copolymers undergo as well as the greater viscosity fluctuations with temperature change.

While using for a medical device, the energy consumption of each of the three resins can be found out. Energy consumption for the copolyester resin is greater than the two polycarbonate resins. Going against conventional wisdom, increasing the polycarbonate resins’ melt temperatures actually reduces the energy consumed per part.

http://www.onlinetmd.com/medical-devicepolycarbonate-resins-050213.aspx


PET Has Advantages For Medical Packaging

PET might not be ideal for many medical applications, including devices, but it can serve as the perfect plastic for packaging for devices.

Because of the routine nature of hospitals and the health care industry, it is set up nicely for a recycling system where device packaging made out of PET can be easily recycled and returned to the market at a very clean and high grade. Because of the wealth of products PET can be made into, the market for PET is so much better compared to polystyrene and PVC.

PET has great attributes like clarity and toughness. And it’s easy to process. PET has a long history without any regulatory issues. And while it is widely available and easily recycled, the recycling rate for the material is only at approximately 30%. That contrasts with more than a 60% recycling rate for aluminum.

While using PET for packaging for medical devices, purity is very essential as that will make it as recyclable as possible. PET and PVC together should not be used as PET degrades the PVC.

In addition to traditional PET, there’s the emerging bio-derived PET market too which also can be used for packaging as well.

http://www.europeanplasticsnews.com/subscriber/
newscat2.html?cat=1&channel=130&id=3480

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