Caprolactones
Daicel’s Oxidation Technology
Daicel manufactures epsilon-caprolactone and derivatives(PLACCEL®) through an oxidation reaction using peracetic acid
Caprolactone
- (1)Wide range of designs and numerous product offerings
- (2)Narrow molecular weight distribution and uniform polyurethane structure
- (3)Excellent low temperature and mechanical properties for polyurethane
- (4)Exhibits biodegradability and biocompatibility
①Various grades, good reactivity and affinity
- Easy to select the number of functional groups
- Easy to control the molecular weight
- Good reactivity with curing agents
- Good compatibility with resins and solubility in solvents
②Forms a uniform polyurethane structure
- Low viscosity and good handling.
- Enabling formation of a uniform mesh structure.
- Enabling improvement of various properties.
③High mechanical properties, High functionality
- vs Ether ⇒ High mechanical strength, heat resistance
- vs Adipate ⇒ Hydrolysis resistance and wide range of temperature characteristics
- vs Carbonate ⇒ Flexible, cold resistance
④Biodegradability, Biological suitability
- Good biodegradability in microbial environments such as underground, seawater, etc.
- Biocompatible and bioabsorbable
PLACCEL Product List
PLACCEL 200 series
They are di-functional polyols that have excellent weather and heat resistance compared to polyether-type diols and have excellent hydrolysis properties compared to general adipate-type polyester diols. We also have a lineup of narrow molecular weight distribution grades with enhanced wear resistance and compression set, as well as liquid grades with improved elastic recovery.
PLACCEL 300, 400 series
They are three- and four-functional polyols that can be used as coating raw materials or additives that improve flexibility. They can also be used as raw materials for polyurethane foam, which have excellent low-temperature characteristics and mechanical properties.
PLACCEL CD series
The CD series are polycarbonate diols that have superior heat and weather resistance compared to ester-type polyols and polyether-type polyols. We have a lineup of highly crystalline and liquid grades.
PLACCEL F series
The F series are macromonomers in which a radical polymerizable (meth)-acrylic group is introduced into a polycaprolactone oligomer with a primary hydroxyl group that is highly reactive with curing agents (isocyanate). They can form a tough coating film with excellent scratch resistance, abrasion resistance, low-temperature flexibility, etc.
PLACCEL Others
Our lineup includes copolymerized grades of caprolactone, special liquid grades with improved water resistance, and thermoplastic polycaprolactone resins used as resin additives.