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A-868
Transparent toughening granule for PET processing trials
A white granule listed for PET modification where toughness, intrinsic viscosity, tear resistance, cold resistance and transparency retention are considered together.
25 kg paper-poly pouch
TDS-derived technical profile
Key values listed for A-868
The following technical values are taken from the current TDS to support grade selection and initial formulation work.
| Property | Listed value | Method |
|---|---|---|
| Intrinsic viscosity | 0.935 ± 0.015 dl/g | ASTM D4603 |
| Color Lb | >86 | ColorQuest XE |
| Acid value | ≤36 meq/kg | GB 17931 |
| Melting point | 250 ± 3°C | DSC |
| Ash | 0.01-0.05% | GB 17931 |
| Solid particles | ≤3 mm | GB/T 2000 |
What this grade is positioned to support
- PET impact and toughness evaluation
- Clarity-conscious formulation comparison
- Controlled small-batch processing trial
How to prepare the first evaluation
- 01
Blend the grade with PET resin for 5–8 minutes before processing.
- 02
Keep the base resin, thickness and processing conditions consistent between comparison samples.
- 03
Evaluate the stabilized molded result after at least 24 hours.
Why this model is a separate evaluation route
A-868 is the PET-specific route and is differentiated by its intrinsic-viscosity profile: 0.935 ± 0.015 dl/g, together with a 250 ± 3°C melting point and PET colour and acid-value controls.
What the source document does not establish
- The source TDS describes PET use only; do not extend the data to PC, PMMA, SAN, AS or PP.
- The TDS states transparency retention but gives no numerical haze or transmittance value, so no quantitative optical claim should be made.
- Confirm PET and additive drying, keep the process matched and review the finished sample after at least 24 hours.
Technical documentation
Request current TDS Current TDS and application guidance
Source file: a-868-tds.pdf. Optical and mechanical results depend on the base resin, dosage, thickness and processing conditions. Confirm the current specification before scale-up.