5. Polyethers for Rigid Urethane Foam


5-1. Polyethers for General Rigid Urethane Foam

1) Composition and Features
Grade Composition Features and uses
HR-450P Special Polyether multi-functionality and excellent mechanical properties,Sucrose base
HS-209 Special Polyether multi-functionality and excellent mechanical properties,low viscosity, Sucrose base
HS-480N Special Polyether multi-functionality and excellent mechanical properties,Conventional Type
HD-401 Special Polyether High density, low viscosity, uesd in synthetic timber
HD-402 Special Polyether High density, low viscosity, uesd in synthetic timber
HR-360G Special Polyether High density, low viscosity , easy to control density,
uesd in synthetic timber
KR-500 Aromatic Amine
based Polyether
High activity, low viscosity, used for Spray,
self-extinguishing
KR-400 Special Polyether High hardness and good mechanical strength RIM
KR-228 Special Polyol Polyisocyanurate Spray

2)Typical Properties and Physical Properties of Foam
Grade Color
(GARDNER NO.)
OH No.
(mgKOH/g)
Acid No.
(mgKOH/g)
pH water(%)
Viscosity
(25¡É,cps)
HR-450P 10ÀÌÇÏ 450¡¾20 0.1max 9.0¡­11.0 0.1max 14000¡¾4000
HS-209 10ÀÌÇÏ 450¡¾20 0.1max 9.0¡­11.0 0.1max 5000¡¾1500
HR-360G 18ÀÌÇÏ 355¡¾15 0.1max 5.0¡­7.0 0.1max 3200¡¾700
HD-401 18ÀÌÇÏ 400¡¾15 0.1max 5.0¡­7.0 0.1max 365¡¾50
HD-402 18ÀÌÇÏ 405¡¾25 0.1max 4.5¡­7.5 0.1max 1800¡¾200
HS-480N 18ÀÌÇÏ 480¡¾15 0.1max 6.5¡­8.0 0.1max 33000¡¾7000
KR-500 18ÀÌÇÏ 495¡¾25 0.1max 5.5¡­8.0 0.1max 1300¡¾500
KR-400 18ÀÌÇÏ 400¡¾15 0.1max 5.5¡­8.0 0.1max 5000¡¾1500
KR-228 17ÀÌÇÏ 470¡¾20 3.0max 9.5¡­11.5 - 2400¡¾450

5-2. Poylether for Insulated Rigid Urethane Foam l


1) Composition and Features
Grade Composition Features and uses
KP-714 Modified amine based poylether Refrigerator, 141B type, high activity

2) Typical Properties and Physical Properties of Foam
Grade Hydroxyl No.(mgKOH/g) Viscosity(25¡É, CPS) Remarks
KP-714 417¡¾15 18000¡¾2500 Using HCFC-141b

5-3. Poylether for Sandwich Panel

1) Composition and Features
Grade Composition Features and uses
KR-365NF Modified amine based polyether Refrigerator, 141B type, high activity

2) Typical Properties and Physical Properties of Foam
Grade Hydroxyl No.
(mgKOH/g)
Viscosity
(25¡É, CPS)
Remarks
KR-365NF 370¡¾10 2050¡¾150 Discontinuous S/W PANEL,
Using HCFC-141b