Cariflex Gloves
Cariflex Polyisoprene Products

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Can converting to synthetic surgical gloves lower hospital operating room cost?

ASI October 2012Alta Bates Medical Center offers comprehensive medical services designed to meet the health care needs of the diverse communities of San Francisco’s greater East Bay. With recognition as one of the nation’s top hospitals for clinical excellence and patient safety, the hospital has decided to convert the operating room to synthetic surgical gloves to reduce the risks related to Type 1 allergic reactions to natural rubber latex. The Alta Bates operating room leadership team wanted to perform a fact‐ based cost‐benefit analysis of this conversion.

Kraton Corporation is the worldwide leading supplier of the polyisoprene raw material utilized by surgical glove manufacturers to produce high quality synthetic surgical gloves. Kraton Corporation’ management team was interested to determine the long‐term sustainability of its Cariflex™ polyisoprene raw material offering to healthcare organizations.

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EUROPEAN RUBBER JOURNAL November/December 2012
Kraton aims to replace NR and synthetic rubbers with new IR for medical uses

ASI October 2012Engineered polymers producer Kraton Performance Polymers first commercialised its Cariflex synthetic polyisoprene (IR) five years ago, offering it as a replacement for other rubbers on the medical market, including butyl, and other isoprene rubbers, such as natural rubber.
Natural rubber used in extended contact with skin or bodily fluids has been plagued with problems – either real or perceived – relating to allergic reactions. In a paper at the International Rubber Expo held in Ohio in October, Kraton presented the results of third party testing on medical stoppers made using different types of rubber including Cariflex. The testing shows that Cariflex polymers are good choice for the medical stopper market, Richard Brennan, VP Cariflex polyisoprene products, and Dr Philippe Henderson, global industry manager, told ERJ in a 30 Oct telephone interview.
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Rubber & plastics news November 2012
Kraton touts Cariflex IR for Medical Stoppers

ASI October 2012Kraton Performance Polymers Inc. said a study on elastomers used in medical stoppers shows one of its materials performed best in the strictest protocol.

The results were presented in a paper, "Improved medical stopper solutions with high-performance, anionic isoprene rubber," given at the recent ACS Rubber Division Fall Technical Meeting and International Rubber Expo in Cincinnati by Philippe Henderson, Kraton’s global industry business manager for Cariflex-brand polyisoprene products.

The study was performed by a third party and compared the chemistry and performance of four rubber families currently used in medical stoppers: anionic polyisoprene, Ziegler-Natta IR, chlorobutyl rubber and bromobutyl rubber.
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ASI October 2012
NR-Free, Cold-Seal Adhesive Formulations

ASI October 2012Natural rubber is a polyisoprene produced by Hevea trees that consists of approximately 99% cis-1,4 repeating units. Natural rubber latex (NRL) has been used in cold-seal adhesive formulations for over 100 years. The term “cold seal” describes an adhesive that bonds to itself under pressure at ambient temperature without adhering to other materials. Cold-seal adhesives (CSAs) are ideal for bonding heat-sensitive substrates, such as plastic film, since no heat is required for bond activation. They are also capable of bonding many additional substrates, including film, foam, paper, foil and linerboard.
CSAs made with NRL are commonly used in the manufacture of medical devices and food packaging products due to NRL’s excellent flexibility, high initial tack, and good tack retention properties. However, NRL has several notable disadvantages that are causing manufacturers to look at NRL-free formulations.

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Medical Design Technology September 2012
Searching for a Natural Rubber Alternative for Disposables

Medical Design Technology September 2012Manufacturers are faced with increasing consumer demands for the latest and most cost effective in rubber-based products: medical stoppers should be safe but convenient, shoe soles must combine comfort, long-life and fashion trends; protective gloves should be strong, but tactile and kind to skin. The pressure is on to find raw materials that can meet these challenges, and help keep customers’ products competitive. For applications where strength, comfort and protection are key, the demands placed on raw materials are particularly high. Cariflex IR, with its non-allergenic character, transparency, lack of odor, softness, hysteresis and good consistency, offers the ideal alternative to existing material solutions. Traditionally, natural rubber has been selected for use in a wide range of applications because of its key properties of durability, high tensile strength, tear resistance, ready availability and relatively low price.

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Cariflex Polyisoprene Products august 2012
The Pure Alternative to Natural Rubber

Cariflex™ Polyisoprene Products august 2012Medical device manufacturers are faced with increased consumer demands for the latest and most cost-effective rubber-based products that deliver superior strength, comfort and protection. Historically natural rubber (NR) was the product-of-choice for a wide range of medical applications due to key properties that include durability, high tensile strength, tear resistance, availability and a relatively low price. However NR contains protein and protein derivatives that can irritate skin and trigger allergic reactions. Learn how polyisoprene products can improve the overall quality and performance of finished products without sacrificing the benefits of NR.

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Advanced Materials
Benefits of isoprene rubber are many for IV stopper components

Advanced Materials Cariflex polyisoprene rubber products (often abbreviated as Cariflex IR) are produced via anionic polymerization by Kraton Corporation in Belpre, Ohio. The anionic polymerization process results in linear polyisoprene chains with a narrow molecular weight distribution and an extremely low gel content. The Cariflex polyisoprene grades are of the highest purity and are suitable for health care applications.

Cariflex IR products are supplied in 25-kg bales (55 pounds) wrapped in polyethylene film, and packed in a wooden crate of approximately 1 ton each.

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