Products & Solutions

TOYOMELT™ UM Series

Polyurethane Reactive hot-melt pressure sensitive adhesives (PUR-HM) TOYOMELT™ UM Series

Polyurethane type reactive hot melts (PUR-HM) image
"Polyurethane-type reactive hot melts pressure sensitive adhesives (PUR-HM)" that cures with moisture. This product is a general hot melts with reactivity, and is solvent-free, highly heat resistant, and highly durable. There are two variations pressure sensitive adhesives and adhesives.

What is "polyurethane-type reactive hot melts (PUR-HM)" that cures with moisture?

This product is a general hot melts with reactivity, and is solvent-free, highly heat resistant, and highly durable.
It hardens in response to moisture (moisture).

*Polyurethane Reactive hot melts pressure sensitive adhesives (PUR-adhesives)

Features of PUR-HM

Characteristics 

  • Solvent-free and moisture-curing, so CO2 emissions and energy consumption are lower than solvent-based systems (SDGs compliant)
  • Heat resistance and adhesive properties are equivalent to solvent-based acrylic adhesives
  • High-speed coating possible

Aluminum pouch product
Aluminum pouch product *100% solid content *Other formats also available
Resin type polyurethane
(hot melts type)
acrylic
(solvent type)
epoxy
(solvent type)
EVA
(hot melts type)
Curing method moisture 2-component, heat, UV 2-component, heat, humidity non-reactive
CO2 emissions
energy usage
Heat resistance ×
Adhesiveness (SUS)
flexibility
Curing period
cost

Heat-resistant PUR-HM pressure sensitive adhesives

Using our unique monomer design technology, we have succeeded in creating a tackiness even though it is PUR-HM, making it possible to make PUR-HM into a sheet, which was previously difficult.
A patent is currently pending.

Characteristics 

  • Since it does not use organic solvents, it can be used in applications that require environmental consideration.
  • It has higher heat and cold resistance than conventional products, making it suitable for automotive and building materials applications.
  • Since it has a solid content of 100%, there is no need for a drying process when creating sheets.
Image after coating

Assumed use for automobiles

  • Assembling the seat
  • Fixing the interior (doors, ceiling surface materials)
  • Decorative film for interior protection
Automotive
Product name Heat-resistant PUR-HM pressure sensitive adhesives
120℃ melt viscosity [mPa・s] 4800
Adhesive force
Against SUS
[N/25mm]
180 degree peeling
-10℃ 23.5
23℃ 22.9
80℃ 6.0
100℃ 4.8
Holding force [mm] N.C.
  • Base material composition: PET (25μm)/PUR (50μm)/adherent
  • Adhesion measurement: Pressed with one round trip of a 2 kg roller, stored at room temperature for 24 hours, left for 30 minutes under each measurement environment, and measured under each measurement temperature atmosphere.
  • Holding force measurement: 80℃-1kg-70000 seconds

PUR-HM adhesives for textiles

A PUR-HM adhesives with flexibility and durability that meets the demands of textile applications.
Because it has a low melt viscosity and can be applied at low temperatures, it can be applied to and adhered to olefin fabrics.

Application

  • Fabric lamination for outdoor use (waterproof/windproof)
  • Seamless for underwear (improved feel)
Image of expected use for textiles
Product name New product① New product②
Recommended coating temperature [℃] 80 80
80℃ melt viscosity [mPa・s] 3500 3200
Open time [minutes] 180 5
Breaking strength [MPa] 11 13
Breaking elongation [%] 660 430
Shore A hardness 50 57
180 degree peel strength [N/25mm] >50 >50
jungle exam
Characteristics  long open time
high breaking strength
flexibility
high initial strength

Inquiries

TOYOCHEM CO., LTD. Packaging and Industrial Materials Sales Division Address Sales Department

TOYOCHEM CO., LTD.