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Henkel: Adhesives for Healthcare Applications

Company features LED curing adhesives for flexible medical devices, functional patches and other materials for multiple applications.

Company features LED curing adhesives for flexible medical devices, functional patches and other materials for multiple applications.
Company features LED curing adhesives for flexible medical devices, functional patches and other materials for multiple applications.

At Booth G05 in Hall 8b during the COMPAMED fair in Düsseldorf Nov. 12-15, 2018, Henkel will present its portfolio of adhesive materials for healthcare applications. The company will include new LED curing adhesives for flexible medical devices, a range of advanced pressure-sensitive adhesives for plasters and functional patches as well as conductive inks for smart health devices.

New trends in healthcare materials and manufacturing of medical devices demand new adhesive solutions.

Building on the company’s Loctite brand solutions for the healthcare industry, the spotlight will be on new acrylic adhesives that offer design and manufacturing benefits. Two of these products were specially developed for use on flexible applications made of thermoplastic elastomers (TPE) and thermoplastic polyurethanes (TPU), two substrates increasingly specified by device manufacturers. As low-viscosity, LED curable and high-flexibility adhesives, they feature tack-free curing and combine high elongation (>200%) with bond strength also on polycarbonate, acrylic and other rigid plastics used in medical devices.

The company says that using LED curing saves costs, thanks to the fact that it can be switched ON/OFF instantly. Additionally, the narrow spectrum of light wavelength without infrared light emissions helps manufacturers save energy consumption and minimizes the generation of heat that must be dissipated, especially in cleanroom bonding applications.

Next to TPE and TPU, the products also fit in plasticized PVC applications. Whereas flexibility in adhesives normally comes at the cost of higher viscosity, Henkel’s innovative new LED cure adhesives achieve high flexibility at the lowest end of viscosity, which makes them suitable for flexible joints with narrow gaps or post-assembly dispensing. They also provide high fluorescence in uncured and polymerized state, enabling quick and easy quality inspection of the liquid or cured adhesive by use of black light or vision systems.

Typical applications include a wide variety of disposable medical products, e.g. tube connectors and IV sets, needle safety shields, catheters, respiratory circuits and fluid containers. The new Loctite flexible LED cure adhesives have been tested and certified according to ISO 10993 biocompatibility standards and have shown compatibility with common sterilization methods like Gamma, ETO or autoclave.

Adhesives for functional medical plasters and advanced patches

Meanwhile, Henkel’s new hydrocolloid hot melt pressure-sensitive adhesive targets the fast-growing market of functional medical plasters and advanced patches for use in applications such as advanced wound dressings, acne treatment and ostomy care. Apart from its balance of adhesion and peel strength, its hydrocolloid formulation delivers moisture retention from the wound to the adhesive, good breathability and enhanced wearing comfort.

This innovation was created with consumers in mind and answers the demand for bandages and patches that minimize scarring while offering high water absorbency and protection from infection.

Henkel will also present its portfolio of PSAs custom-designed for a range of wound plasters and electrode/health patches. Certified to ISO 10993, these solvent acrylic products are characterized by good breathability and show excellent adhesion on sensitive skin with gentle and residue-free removal.

The company will also showcase material sets enabling next-generation smart health devices, such as disposable moisture sensors for incontinence management and comfortable on-body health patches for real-time wireless patient monitoring using novel dry-electrode materials. The product range includes Loctite conductive sensing inks, skin-compatible PSAs, protective coatings and low-pressure molding materials, all designed for high speed, cost-efficient manufacturing processes.

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