• Urethane forming from biomass material
• in-mold coating
• RIM forming enables high-mix low-volume manufacturing
• Research & Development
• Product Samples
• for Environment

Antibacterial/Deodorized Products - Utilizing silver ion -

Since ancient times silver has been used for eating utensils and artificial teeth. According to WHO silver has no bad effect to human body. Silver has antibacterial efficacy to almost all disease germs. For the same reason it has deodorizing efficacy also.

We sell the products using silver ion (only in Japan).

Unbreakable Material made of Urethaneurea

We have developed unbreakable material made of urethaneurea for both low and high pressure forming.

We have foamed urethane with density 0.6, with which it it possible to form light products with unbreakabl property. Urethaneurea has more heat resistance than urethane.

1. Stiffness Property (Bending Elastic Modulus)

2. Izod Impact Test

JIS K 7110 Izod Impact Test Test Piece: ISO180/1U (without notches) Testing Machine: DG-UB(Toyo Seiki) Hammer Weighing: 2.75J(A,C)5J Test Pieces: RT-902A/RT-902B Unbreakable materials

3. Property Comparison of Urethaneurea and Urethane

Future Subjects for R&D

Paintless foamed products Integrating functions of large parts of low production volume Light or large urethane products Products using low/high bounce characteristics of urethane Products using sound-absorbing characteristics of urethane

We are wating for you ideas for development.

Please inform us your ideas by this form. INQUIRY FORM

PROTO Co., Ltd.

1117 MUJINAZUKA, ORA-MACHI,   ORA-GUN, GUNMA 370-0613 JAPAN 　　■ TEL +81-276-60-5322 　　■ FAX +81-276-60-5323