SUMIFITT^®

SUMIFITT^® is water-based polyolefin emulsion with strong adhesion to hard-to-adhere material, polypropylene (PP). Moreover, SUMIFITT^® expresses the adhesion by lower heat treatment temperature than general adhesive for PP. Therefore, it can reduce energy consumption in the adhesion process.

1. Excellent Adhesion to PP

Polymer structure nature of SUMIFTT^® with high affinity to PP makes it possible excellent adherence to PP. Moreover, it can also adhere to homo-PP, which is difficult to adhere.

Composition: PP composite material/Coated sample (Thickness: 10μm as solid)/Coating agent (Thickness: 100μm as solid)
Coating condition: Degreasing →Coating of SUMIFITT^® or Conventional adhesive for PP →Drying (50°C, 5min) →Coating of coating agent →Heat treatment (80°C, 30min)
Peeling condition: Apply cellophane tape to cover the cut area and peel it at the angle of 45°

2. Lower Temperature for Bonding

SUMIFITT^® consist of a special polymer with optimized crystallinity and flexibility. Therefore, it can strongly adhere even at lower processing temperature. It contributes to reduction of energy consumption and CO₂ emission in the adhesion process.

Composition: PP composite material/Coated sample (Thickness: 10μm as solid)/Coating agent (Thickness: 100μm as solid)
Coating condition: Degreasing →Coating of SUMIFITT^® or Conventional adhesive for PP →Drying (50°C, 5min) →Coating of coating agent →Heat treatment (Given temperature, 30min)
Peeling condition: 180°peel test (50 mm/min)

3. Multi-material Adhesion

SUMIFITT^® could be applied to various resin kinds and metals.

Composition: Material/SUMIFITT^® (Thickness: 10μm as solid)/PP sheet
Coating condition: Degreasing →Coating of SUMIFITT^® →Drying (60°C, 5min) →Set of PP sheet →Heat press (Plastics: 0.1MPa, 150°C, 1min; Metals: 0.1MPa, 150°C, 2min)
Peeling condition: 180°peel test (100 mm/min)

4. Performance Improvement of Different Types of Emulsions

Combination of SUMIFITT^® with different kinds of emulsions such as polyurethane and acrylic one improves PP adhesion. Blending of SUMIFITT^® could enhance the performance of adhesion by changing the characteristics of new emulsion.

Composition: PP composite material/Coated sample (Thickness of solid: 10μm)/Coating agent (Thickness of solid: 100μm)
Coating condition: Degreasing →Coating of sample →Drying (50°C, 5min) →Coating of coating agent →Heat treatment (80°C, 30min)
Peeling condition: 180°peel test (50 mm/min)

SUMIFITT^® shows good performance as adhesives or primers between PP and various materials.

Field	Application
Automobile	Primer for Bumper painting, Primer of adhesive for interior material, Adhesive for interior material, Adhesive for car battery, Adhesive layer for decorative film
Home electric appliances	Paint Primer for housing, Primer for adhesive
Electronic material	Primer for adhesive of electronic substrate
Ink	Ink binder, Primer for printing
Packaging	Laminating adhesive
Building material	Primer for sealant
Fiber	Fiber binder, Sizing agent for reinforcing fiber

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Notes

Data shown here were obtained by using SUMITOMO CHEMICAL's methods.
These values are for reference only and are not intended as guarantees of product performance.

All the data given above are based on materials, information and data currently available and are subject to change in accordance with new findings.