https://www.avient.com/knowledge-base/article/medical-stoppers-improved
Traditional vulcanized rubber products require application of adhesives to bond to the closure, and this adhesive bond has a greater potential for failure than the chemical bond formed between a TPE and polymer substrate.
This formulation meets the requirements of the ISO 15759 standard for medical infusion equipment, and can be steam autoclaved using temperatures up to 121°C.
Purity and cleanliness are crucial for polymers used in healthcare applications, and this formulation enhances purity not only because it offers low coring levels, but because it is made without cross-linking agents that can potentially leach into the container and interact with the sensitive pharmaceutical product.
https://www.avient.com/knowledge-base/article/eco-conscious-alternative-coloring-textiles
The colorant is in the form of concentrate pellets added to the polymer pellets during the extrusion and melting process.
Avient’s portfolio for spin-dyeing
Avient offers color concentrates (a.k.a. masterbatches) for spin-dyeing virgin and recycled fiber-grade polymers.
https://www.avient.com/knowledge-base/article/eco-conscious-alternative-coloring-textiles?rtype[]=1164
The colorant is in the form of concentrate pellets added to the polymer pellets during the extrusion and melting process.
Avient’s portfolio for spin-dyeing
Avient offers color concentrates (a.k.a. masterbatches) for spin-dyeing virgin and recycled fiber-grade polymers.
https://www.avient.com/knowledge-base/article/eco-conscious-alternative-coloring-textiles?ind[]=6595
The colorant is in the form of concentrate pellets added to the polymer pellets during the extrusion and melting process.
Avient’s portfolio for spin-dyeing
Avient offers color concentrates (a.k.a. masterbatches) for spin-dyeing virgin and recycled fiber-grade polymers.
https://www.avient.com/news/avient-expands-portfolio-metallization-grades-high-impact-polypropylene-based-formulations-luxury-applications
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Avient Expands Portfolio of Metallization Grades with High-Impact Polypropylene-Based Formulations for Luxury Applications
SHANGHAI, China – November 1, 2022 – Avient today announced the addition of new high-impact polypropylene (PP) based grades to its Gravi-Tech™ density modified portfolio.
About Avient
https://www.avient.com/sites/default/files/2023-11/Cesa Clean Processing Usage Guide.pdf
GUIDELINES FOR USING CESA CLEAN ADDITIVES
• Cesa Clean works best when molded maintaining normal (injection)
pressure/shear
• For best results, Avient recommends a “Running Color Change”
which eliminates breaks in the molding cycle
• Since the Cesa Clean concentrate will expand, it is recommended
to reduce the shot size by 20%
• It is designed for use at a let-down ratio (LDR) of 3.0% or (33:1); however,
use rate can vary depending on the severity of the contamination but
typically is 2.0–4.0% (a use rate higher than 6.0% may not have any
positive affect on the cleaning performance)
• Using Cesa Clean as a routine part of your color change rotation will
allow faster changes and consume a minimal amount of raw material
- Note: If the manifold is not cleaned routinely, this process may be
more time consuming and additional material will be required
• It is best to process at your normal polymer processing temperatures
- For best performance, stock temperature should be at least 400°F
- If 400°F is achieved during the purging process, no additional
activation will occur during the reprocessing of regrind
- All parts produced during the “Running Purge Cycle” should be
captured as regrind, resulting in a scrap-free color change
- If using sequential gates, open and close all gates at the same time
while purging the tool
- If contamination appears to be coming from one gate, open and
close first, and for an extended period of time, to force more material
through this location
- When cleaning in this manner, pay close attention to shot size
- Parts containing the previous or new color plus any Cesa Clean
can be used as regrind
INTRODUCING CESA CLEAN TO YOUR PROCESS
Hand Blend
• Hand weigh enough of the Cesa Clean and
natural resin mix to equate to 3–5 times the
barrel capacity
• Use rate should be 3.0% or 33:1 for routine
cleaning
• For difficult-to-clean tooling, or tooling which
is not routinely cleaned, start at 4.0% or 25:1
• Note: Do not attempt to vacuum load more than
15 feet from source as stratification/separation
may occur
Volumetric Feeder
• Calibrate feeder to dispense 3.0% or 33:1 for
routine cleaning
• For difficult-to-clean tooling, or tooling which
is not routinely cleaned, start at 4.0% or 25:1
• This style of feeder is highly recommended for
at-the-throat metering of Cesa Clean
Blending Units
Most blenders have an extra bin for an additive
• Fill the additive bin with Cesa Clean
• Set blender to introduce the Cesa Clean at
2.0 to 4.0%
• Note: Do not air convey any further than 15 feet
as Cesa Clean has a high density and may separate
from the mix.
Contact your Avient
representative with questions
or for additional support.
1.844.4AVIENT
www.avient.com
Copyright © 2023, Avient Corporation.
Avient makes no warranties or
guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.
https://www.avient.com/sites/default/files/resources/PolyOne%25202016%2520Annual%2520Report%2520Web.pdf
Within Color, Additives and
Inks (CAI), we purchased Germany-based Comptek, a producer of
colorants, additives and formulations for products that utilize high-
temperature, highly engineered thermoplastics.
On November 30, 2016, the Company completed the acquisition of COMPTEK Kunststoffverarbeitung GmbH
(Comptek), an innovative producer of colorants, additives and formulations for products that utilize high-temperature
and highly engineered thermoplastics.
On November 30, 2016, the Company completed the acquisition of COMPTEK Kunststoffverarbeitung GmbH
(Comptek), an innovative producer of colorants, additives and formulations for products that utilize high-temperature
and highly engineered thermoplastics.
https://www.avient.com/news/revolutionary-new-fiber-coloration-technology-polyone-showcased-itma-2015
The new fiber colorant technology combines ColorMatrix liquid concentrates and proprietary high-pressure metering equipment to enable late-stage color injection during melt extrusion spin coloring.
EDITORS: For high-resolution images, please click here:
Avient Announces Quarterly Dividend...
https://www.avient.com/news/polyone-showcases-performance-plastics-signs-isa-sign-expo
EDITORS: For a high-resolution image, please click here: ISA EXPO 2017
Avient Announces Quarterly Dividend...
Avient Board of Directors Appoints Ashish K.
https://www.avient.com/knowledge-base/article/optimizing-automotive-structural-component-designs-advanced-modeling?rtype[]=1164
Engineered Polymer Services
For more technical details on the structural performance of reinforced polymers using CAE, automotive design engineers may access material data and models for Avient’s fiber-reinforced solutions using Hexagon’s Digimat-MX Tool.
Learn more about Avient's collaboration with Hexagon and its Digimat Platform