https://www.avient.com/knowledge-base/case-study/material-cuts-delays-contact-lens-container-production?rtype[]=1124
The company tried several TPE grades, hoping to find a material that would eliminate the adhesion problem while providing comparable softness to silicone.
https://www.avient.com/knowledge-base/case-study/material-cuts-delays-contact-lens-container-production?ind[]=6598
The company tried several TPE grades, hoping to find a material that would eliminate the adhesion problem while providing comparable softness to silicone.
https://www.avient.com/sites/default/files/resources/HIGH_PERFORMANCE_CLEAR_THERMOPLASTICS_ELASTOMER.pdf
Special grade of TPV can be used for various
medical application, however is opaque.
Medical grade
SBC compounds have transparent or translucent
appearance and are suitable for medical tubing
applications.
TMA strain versus temperature measurement
-2000
-1500
-1000
-500
0
D
im
en
si
on
C
ha
ng
e
(µ
m
)
20 40 60 80 100 120 140 160 180 200
Temperature (°C)
––––––– 224-020A-10N-HDT.003
– – – – 224-001A-HDT
Universal V2.6D TA Instruments
3038 / ANTEC 2003
Figure 3.
https://www.avient.com/sites/default/files/2021-07/lactra-low-tio2-product-bulletin_0.pdf
Important nutrients including vitamins A (retinol),
B2 (riboflavin), B12 (cobalamin), C and D are quickly
degraded when exposed to visible light, and the
oxidative products of dairy proteins and lipids give
rise to off-flavors.
With total inorganic content
TECHNOLOGY BENEFITS
• Improved light blocking performance up
to 99.9% at 550nm and 700nm
• Brighter whiteness L* >90 even in thin wall
sections (0.21mm)
• Plug & go solution—processes similar to
virgin PET
• Process with standard PET grades and rPET
• Reduces equipment wear and tear
• TiO2 content of
https://www.avient.com/sites/default/files/2020-10/tpe-overmold-design-guide.pdf
For the
Versollan grades, a moisture level at or below 0.06% is recommended; typical drying conditions
are 4 hours minimum at 120-140˚F (50-60˚C).
For the
Versollan grades, a moisture level at or below 0.06% is recommended; typical drying conditions
are 4 hours minimum at 120-140˚F (50-60˚C).
Harder grades will set up faster than softer grades and
are easier to eject.
https://www.avient.com/knowledge-base/article/injection-molding-mold-design?rtype[]=1164
To produce a glossy surface, a polished mold is required and an unfilled grade should be used.
Rheological balancing is possible, but only for a specific grade or rheometric curve.
Due to the low viscosity of some GLS grades, properly maintained tight valve gates are required to prevent leakage or hair flash.
https://www.avient.com/sites/default/files/2023-06/AVIENT_TPEs and LSR eBook.pdf
Starting with water-clear grades of TPE will generate the best pearlescent
and metallic colors.
There are medical grade TPEs that can be autoclaved
up to 135°C for 15 minutes, but the inherent thermoplasticity of
most TPEs make them susceptible to softening under extreme heat.
Medical-grade TPEs can rival LSR in biocompatibility performance, depending on their chemistry.
https://www.avient.com/news/bic-amplifies-sustainable-design-avient-recycled-content-material-soleil-click-5-women-s-razor-handle
Utilizing its formulation expertise, Avient is able to increase the overall percentage of recycled content in additional reSound R grades to over 80 percent at performance comparable to prime grades.
These grades can replace traditional TPEs in personal care, lawn and garden, outdoor high performance, footwear, office supplies, houseware durables, and automotive applications.
https://www.avient.com/news/avient-feature-specialty-technologies-and-services-healthcare-mdm-west-2023
The portfolio includes the HC8910 and HC8920 series for improved resistance to harsh chemicals and hospital-grade disinfectants over other flame-resistant (FR) polymers such as PC/ABS, PC/PET, and copolyester.
Available in pre-colored formulations, they offer a sustainable drop-in replacement for fossil-based grades and can be processed and recycled in the same channels.
It also contains more specialty formulations like the HC BT218 grade, which was developed specifically to handle the complexities of biopharmaceutical tubing and deliver excellent weldability, kink resistance, and low levels of extractables.
https://www.avient.com/news/avient-highlight-achievements-global-growth-latest-innovations-plastindia-2023
Maxxam™ REC, Maxxam™ BIO, and Nymax™ BIO grades: An expanded portfolio of recycled and bio-based polyolefin and polyamide formulations now manufactured in Europe.
These grades can offer a more sustainable alternative to traditional grades while still achieving performance requirements in many applications and industries, including transportation, industrial, consumer, electrical and electronic, and building and construction.