SUMIKASUPER LCP is thermo tropic liquid crystalline polyester, showing the highest heat resistance among engineering plastics. Liquid crystalline polymer is characterized by that it becomes liquid crystal, as its name suggests, under the molten state Consequently, it exhibits a unique phenomenon, which is not found with other normal crystalline polymers. The liquid crystalline polymer is different from ordinary crystalline resins, and has the rigid molecular chains, which form the polydomain without causing entanglement even under the molten condition. It moves and flows under low shearing strength and is orientated toward the flow direction in fully stretched condition.
CHARACTERISTICS
1. High strength and high modulus
2. High flowability: thin-wall, high filling
3. Low mold shrinkage
4. Low coefficient of thermal linear expansion
5. Fewer flashes
6. Excellent damping properties
GENESTAR, developed by Kuraray Co., Ltd., is a new heat-resistant polyamide, consisting of terephthalic acid and nonanediamine. GENESTAR is semi-aromatic polyamide with a unique chemical structure, made up of an aromatic core and a long hydrocarbon chain. It shows greater heat resistance and lower water absorption than PA46 and PA6T, and excellent dimensional stability, making it ideal for use as an SMT material. GENESTAR retains its strength and hardness at high temperatures, offering outstanding weld strength and recyclability, and balanced performance as an SMT material.
CHARACTERISTICS
1. Low water absorption: GENESTAR shows the lowest water absorption of any polyamide, and is virtually free from dimensional change or degeneration of mechanical properties due to water absorption.
2. Outstanding heat resistance: A high melting point (306 ?) and low water absorbency prevent blistering during reflow soldering. Its lead-free composition also makes GENESTAR suitable for high-temperature soldering.
3. Outstanding moldability: GENESTAR’s high fluidity allows the molding of thin-walled shapes. Its rapid crystallization properties reduce cooling time and allow high-cycle molding. GENESTAR also gives off fewer gases than other heat-resistant polyamides, helping to keep molds clean and prolong mold life.
In 1911, SUMITOMO BAKELITE CO., LTD. first developed plastics (phenolic resin) in Japan. Since then, SUMITOMO BAKELITE has remained in the forefront of Japanese phenolic manufacturers, developing numerous applicable fields.”Bakelite”(phenolic resin) has been known for its heat-resistance, and dielectric property. In recent decades, its superior electric and mechanical properties and dimension stability are esteemed in industries. Phenolic molding compound, SUMIKON PM is indispensable in designing electric/electronic components, automotive parts and other industrial parts.
To meet diverse customer needs, SUMITOMO BAKELITE CO., LTD. has also commercialized other thermo set molding compounds such as diallyl phthalate, unsaturated polyester, melamine phenolic and epoxy.
In addition, we have been spending a great deal of energy in development of molding technology, mold die production and recycling system.