Styrene-ethylene-propylene(SEP) , CAS No.S683590

CAS: S683590 Cat. No.: S683590

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Overview

The Hydrogenated Styrenic Block Copolymers (HSBCs) is a series of styrenic thermoplastic elastomers. Is used in a great number of TPE compounds and can be processed in a wide variety of forms. Specific grades are certified and used in consumer goods, medical, mobility and oil modification applications. These styrenic TPEs cover a broad range of applications including compounds, polymer modification, adhesives, flexible PVC substitutes and vibration damping products. 

The Hydrogenated Styrenic Block Copolymers (HSBCs) consist of styrene-based hard blocks and a hydrogenated diene soft block. HSBCs exhibit rubber-like elasticity since the hard block acts as a crosslinking point below the glass transition temperature of polystyrene and the soft block provides elasticity. Hydrogenation generates excellent heat and weather resistance.

Features

• Excellent mechanical properties

• UV-/Weather resistant
• Good resistance to chemicals
• Good low temperature performance
• Non-toxic
• High heat resistance
• Excellent electrical insulation
• Rubber-like elasticity
• Recyclable

Benefits

• Easy processing

• Durability
• Long-term quality
• Safety
• Replacement of rubber by TPE
• Replacement of PVC by TPE

Applications

• Adhesives, coatings, sealants

• Compounding
• Consumer goods
• Electronics
• Industrial & construction
• Medical
• Mobilit
• Oil modification
• Sporting goods & footwear
• 3D printing

The Hydrogenated Styrenic Block Copolymers (HSBCs) is offered in a variety of grades, from low to high styrene content and from low to ultra-high molecular weight. Also, in terms of soft-block structure, there are four different types, SEP, SEPS, SEEPS and SEBS.

There is a variety of  HSBCs grades, from low styrene content (soft) to high styrene content (rigid), from low molecular weight (high flow) to high molecular weight (more rubber-like properties). Each provides different functional characteristics and can be used in various applications. These products exhibit rubber-like properties over a broad temperature range. In comparison to non-hydrogenated styrenic block copolymers,  HSBC exhibits better tensile strength, better heat, weather and ozone resistance as well as better compatibility with poly-olefins.

SEP 1000-series is a di-block type. It is characterized by excellent transparency and good flow ability due to its SEP structure (SEP; styrene-ethylene-propylene). Main areas of application are adhesives, sealing materials, automotive parts, cable and wire insulation, cosmetics, oil modification and viscosity index improvers (VII). SEP 1000-series products can also be applied as a modifier for unsaturated polyester.

SEP 1000-series (SEP) 

The Hydrogenated Styrenic Block Copolymers (HSBC)	itm	Grade	Type	Styrene Content (wt%)	MFR	MFR	Solution viscosity (Toluene solution 30 °C)	Solution viscosity (Toluene solution 30 °C)	Solution viscosity (Toluene solution 30 °C)	Physical form	Hardness type A
					230 °C, 2.16 kg (g/10min)	200 °C, 10 kg (g/10min)	5wt% (mPa·s)	10wt% (mPa·s)	15wt% (mPa·s)	-	-
SEP 1000series  SEP 1000-series is a di-block type. It is characterized by excellent transparency and good flow ability due to its SEP structure (SEP; styrene-ethylene-propylene).	S683590-1020	1020	SEP	36	-	1.8	-	40	-	Crumbs	70
SEPS 2000 series (SEPS) The SEPS structure (SEPS; styrene-ethylene-propylene-styrene) generally does not crystallize and exhibits excellent tensile elongation and low temperature properties.	S683600-2002	2002	SEPS	30	70	100	-	-	25	Pellet	80
	S683600-2004F	2004F	SEPS	18	5	-	-	-	-	Pellet	67
	S683600-2005	2005	SEPS	20	No flow	No flow	40	1700	-	Crumbs	-
	S683600-2006	2006	SEPS	35	No flow	No flow	27	1220	-	Crumbs	-
	S683600-2063	2063	SEPS	13	7	18	-	29	140	Pellet	36
	S683600-2104	2104	SEPS	65	0.4	22	-	-	22	Pellet	98
SEEPS 4000 series (SEEPS) The unique SEEPS 4000-series (SEEPS; styrene-ethylene-ethylene-propylene-styrene) offers better tensile strength, oil retention and PE compatibility than SEBS (styrene-ethylene-butylene-styrene). The products show also moderate elongation with exceptional oil absorbency.	S683609-4030s	4030s	SEEPS	20	1	1.5	-	81	-	Crumbs	67
	S683609-4033	4033	SEEPS	30	<0.1	<0.1	-	50	-	Crumbs	76
	S683609-4044	4044	SEEPS	32	No flow	No flow	22	460	-	Crumbs	-
	S683609-4055	4055	SEEPS	30	No flow	No flow	90	5800	-	Crumbs	-
	S683609-4077	4077	SEEPS	30	No flow	No flow	300	-	-	Crumbs	-
	S683609-4099	4099	SEEPS	30	No flow	No flow	670	-	-	Crumbs	-
SEBS 8000series (SEBS) With its popular mid-block structure in HSBCs, SEBS 8000-series (hydrogenated SEBS type) is an excellent choice.	S683621-8004	8004	SEBS	31	< 0.1	< 0.1	-	40	-	Crumbs	80
	S683621-8006	8006	SEBS	33	No flow	No flow	42	-	-	Crumbs	-
	S683621-8007L	8007L	SEBS	30	0.3	-	-	25	-	Pellet	77
SEEPS-OH HGseries (SEEPS-OH) SEEPS-OH HG-series (SEEPS-OH; hydroxyl group containing styrene-ethylene-ethylene-propylene-styrene) features a hydroxyl group on one end. As a result, the reaction can be controlled. SEEPS-OH HG252 is used as a modifier for polar resins and compatibilizer of polar/non-polar resins.	S684764-HG252	HG252	SEEPS-OH	28	26	-	-	-	70	Pellet	80

Specifications

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