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℃,cps)
HR-450P 10이하 450±20 0.1max 9.0∼11.0 0.1max 14000±4000
HS-209 10이하 450±20 0.1max 9.0∼11.0 0.1max 5000±1500
HR-360G 18이하 355±15 0.1max 5.0∼7.0 0.1max 3200±700
HD-401 18이하 400±15 0.1max 5.0∼7.0 0.1max 365±50
HD-402 18이하 405±25 0.1max 4.5∼7.5 0.1max 1800±200
HS-480N 18이하 480±15 0.1max 6.5∼8.0 0.1max 33000±7000
KR-500 18이하 495±25 0.1max 5.5∼8.0 0.1max 1300±500
KR-400 18이하 400±15 0.1max 5.5∼8.0 0.1max 5000±1500
KR-228 17이하 470±20 3.0max 9.5∼11.5 - 2400±450

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℃, CPS) Remarks
KP-714 417±15 18000±2500 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℃, CPS)		 Remarks
KR-365NF 370±10 2050±150 Discontinuous S/W PANEL,
Using HCFC-141b