Environmentally friendly water-based polyurethane resin

HYDRAN

Functional Products

Automotive

House Equipment / Infrastructure

Environmentally friendly water-based polyurethane resin

This product have a higher solid content than conventional water-based polyurethane resins and contain no amines, helping customers to shorten process times and lessen odors, as well as to reduce greenhouse gas emissions and volatile organic compounds (VOCs). These resins deliver an outstanding performance that is comparable to that of solvent-based products, previously seen as difficult for waterborne polyurethane resins.

About Products
DIC's Advantages
Major Applications
Product Lineup

About Environmentally friendly water-based polyurethane resin

DIC's Advantages

・Water-based polyurethane resin：Environmentally friendly
・High solid content 50~60%：Reduce carbon foot print
・Amine-free：Reduction of VOC (Volatile Organic Compounds)
・Highly compatible with solvent-based systems : Softness, Flexibility

Carbon Footprint in Coating Processes

Image of GHG emissions reduction from
raw material procurement to final product production process.

【Calculation Method】
ISO14040, ISO14044 Reference: DIC's own trial calculation. The above figures are the result of our own trial calculation based on our current calculation method, there is a possibility that they may change in the future.

Major Applications

・PU-leather for high performance applications like:

- Automobile interiors and furniture: Excellent durability, high chemical and heat resistance
- Ideal material for shoes and garment: Flexible texture, Eexcellent hydrolysis resistance

・Other Uses of water-based polyurethane resins

Product Lineup

Used for	Product Name	NCO	OH	NV （％）	100% Modulus （MPa）	Characteristics
Skin layer Mechanical foaming 1K Adhesion layer	GP-100	Aliphatic	Polyether	55 – 59	3.1	Skin; Flexibility at low temperature Adhesion; Wet lamination, aging-less Available for mechanical foam
Skin layer	GP-300	Aliphatic	Polycarbonate	53 – 58	4.2	Flexibility at low temperature High durability, Heat resistance
2K Adhesion layer	GP-500	Aromatic	Polyether	48 – 52	2.2	Dry lamination Long pot-life

HYDRAN GP-100

【For Skin layer】

	s/b PU	Conventional PUD	Green-WPU
Product	DIC Standard Product	DIC Standard Product	GP-100
Feature	Standard	Standard	One component
NCO	Aliphatic	Aliphatic	Aliphatic
OH	PEt／PEs	PEt	PEt
NV(%)	24-26	33-37	55-59
Film properties	No cross linker	Carbodiimide	No cross linker
100%Modulus (MPa)	5.4	5.3	3.1
Tensile strength (MPa)	73.3	56.4	36.9
Elongation (%)	590	480	460
Flow temperature (°C)	181	190	180
Tg (°C) E’	-64	-78	-80
Heat resistance	+	+	+
Light resistance	－~+	－~+	－~+
Hydrolysis resistance	+	－~+	+
Flexibility at low temperature	+	+	+
Secondary workability	+	－~+	+

【For Adhesion layer ／ Wet lamination】

	s/b PU	Conventional PUD	Green-WPU
Product	DIC Standard Product	DIC Standard Product	GP-100
Feature	Standard	Standard	Aging-free
Process	2K DRY Lamination	2K DRY Lamination	1K WET Lamination
NCO	Aromatic	Aliphatic	Aliphatic
OH	PEt／PEs	PEt	PEt
NV (%)	64-66	43-47	55-59
Film properties	NCO cross-linker	NCO cross linker	No cross linker
100%Modulus (MPa)	2.5	5.7	3.1
Tensile strength (MPa)	35	33	36.9
Elongation (%)	520	295	460
Pot-life after adding cross-linker	+	－	++ （No cross-linker)
Peeling strength	+	+	+
Hydrolysis resistance	+	－	+
Flexibility	+	+	+

HYDRAN GP-300

【For Skin layer】

	s/b PU		Conventional PUD	Green-WPU
Product	DIC Standard Product	DIC Standard Product	DIC Standard Product	GP-300
Feature	Softness	Chemical resistance	Chemical resistance	Flexibility at low temp.
NCO	Aliphatic	Aliphatic	Aliphatic	Aliphatic
OH	PC	PC	PC	PC
NV(%)	24-26	24-26	33-37	53-58
Film properties	No cross linker	No cross linker	Carbodiimide	No cross linker
100%Modulus (MPa)	3.7	5.6	5.3	4.2
Tensile strength (MPa)	70	104.9	75.2	46.4
Elongation (%)	420	410	340	320
Flow temperature (°C)	150	190	165	170
Tg (°C) E’	-37	-29	-27	-33
Heat resistance	+	+	+	+
Light resistance	+	+	+	+
Hydrolysis resistance	+	+	－	+
Oleic acid resistance	－	+	+	+~－
Flexibility at low temperature	+	－	－	+

HYDRAN GP-500

【For Adhesion layer ／ Dry lamination】

	s/b PU	Conventional PUD	Green-WPU
Product	DIC Standard Product	DIC Standard Product	GP-500
Feature	Standard	Standard	Long pot-life
Process	2K DRY Lamination	2K DRY Lamination	2K DRY Lamination
NCO	Aromatic	Aliphatic	Aromatic
OH	PEt／PEs	PEt	PEt
NV (%)	64-66	43-47	48-52
Film properties	NCO cross-linker	NCO cross linker	NCO cross-linker
100%Modulus (MPa)	2.5	5.7	2.2
Tensile strength (MPa)	35	33	22
Elongation (%)	520	295	340
Pot-life after adding cross-linker	+	－	+
Peeling strength	+	+	+
Hydrolysis resistance	+	－	+
Flexibility	+	+	+