Resin compound business | Taiyo Giken Co., Ltd.
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Resin Compound Business

Resin Compound Business

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Customizable
Providing recycled resin

We offer sustainable resin compounds that utilize recycled materials.
Under the Global Recycled Standard (GRS) certification, we manufacture products that are both high quality and environmentally friendly.
We support our customers as a trusted partner.

Our compound business

Recycled Materials Expertise

We provide high-quality recycled compounds that utilize waste plastics and used resins. We develop ecological products based on R-PET (recycled polyethylene terephthalate), achieving both environmental protection and performance.

Compatible resins

  • PP (polypropylene)
  • PE (Polyethylene)
  • PET (Polyethylene terephthalate)
  • TPE (Thermoplastic Elastomer)

In addition, we have experience in processing PBT, PC, and PES, and can also handle special applications.

*We refrain from handling materials containing PVC, GF (fiberglass), and Sb (antimony).

  • Consistent manufacturing and delivery support

    We provide comprehensive support from raw material mixing to extrusion molding, quality control, and product delivery.

  • High-quality inspection system

    We inspect the MFR (melt flow rate), color, and heat loss to ensure consistent quality.

Manufacturing process

  • blend

  • Extruder

  • Strand Part

  • Packing state

R-PET resin physical properties table

We manufacture high-quality raw materials using recycled materials (PET bottles).

Item unit Specification Test conditions R-PET-T15P R-PET-ATGP R-PET-AH-M8110 R-PET-ET10-12.5 R-PET-NOJ-M8220 R-PET-NP3-A9900
Untreated crystallization Untreated crystallization Untreated crystallization Untreated crystallization Untreated crystallization Untreated crystallization
density g / cm3 JIS K7112 Water Substitution Method 1.44 1.47 1.35 1.36 1.36 1.37 1.42 1.43 1.46 1.49 1.34 1.38
Tensile Yield Stress MPa JIS K7161 56 64 51 46 46 43 62 64 35 31 47 66
tensile modulus MPa JIS K7161 5060 5400 3110 3350 3350 3670 4630 4660 4400 4470 3800 4330
Flexural strength MPa JIS K7171 91 100 93 90 89 108 95 108 95 103 80 105
bending modulus MPa JIS K7171 3710 4330 3720 4000 2670 3030 3460 3680 3630 4130 2230 2960
Charpy impact strength KJ/m2 JIS K7111 No notch 28 25 33 24 64 39 46 43 42 32 42 24
Deflection Temperature under Load ℃ JIS K7191
Edgewise Method		 1.80MPa 68 90 73 99 75 104 67 92 75 104 67 97
rockwell hardness JIS K5400-5-4 M scale - - - - - - - 81 - - 84 -
Pencil hardness JIS K5600-5-4 2B H B F - - 3B B - - - -
Melting point ℃ JIS K7121 DSC method 255 - 255 - 255 - 257 - - - 256 -
             
PET Rate % ナチュラル色 86 66 81 76 82 <98
Paintability JIS K5600 *1 〇 - ◎ - ◎ - ◎ - 〇 - - -
Food Sanitation Act *2 Suitable Suitable Suitable Suitable Suitable -
High frequency compatibility JIS S2029 7.10,7.11 items - Suitable - Suitable - Suitable - Suitable - Suitable -
Characteristics General purpose Easy to paint Easy to paint Impact resistance High temperature molding possible High PET content
Application example Injection molding Soup bowl base Tableware base Tableware base Tray Shiny tableware
Design accessories		 Misc & Amenities

The physical properties shown in the table are representative values ​​and are not guaranteed values.

-: Not tested

*1Paintability (Cross-cut method: Acrylic urethane paint classification 0: ◎, polyester paint classification 0: 〇, classification 1 or above: ×)

*2 Food Sanitation Law (In accordance with the Food Sanitation Law, Standards for Food and Additives (Ministry of Health, Labour and Welfare Notification No. 370) for synthetic resin utensils or container packaging tests that mainly consist of polyethylene terephthalate, in the colors specified by our company)

*Pencil hardness (soft ← 3B, 2B, B, HB, F, H, 2H → hard)

*Crystallization (150℃ x 1 hour, or equivalent heat applied to promote crystal structure)

Download R-PET resin physical properties table

About resin compounds
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Although our resin compounds are in a niche field, they have earned the trust of our customers for their high quality and wide range of applications. We respond flexibly to our customers' requests and support them from the first consultation to product delivery. Regarding resin recycling, we can handle flakes after crushing molded products. Please feel free to contact us for detailed specifications and prices for extrusion processing and compounding.

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Please feel free to contact us with any questions about our products or services, or to discuss partnerships or transactions.
We will respond to your requests promptly and courteously.

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