회사소개

• SEKISUI Chemical은 S-LEC B grade로 알려진 Polyvinyl Bityral resin, S-LEC K grade로 Polyvinyl Acetal Resin을 생산하여 1936년 이래로 Polyvinyl Butyral resin의 우수한 접착력으로 ceramic binders, printed wiring board adhesives, special coatings, printing inks 등 다양한 application에 적용, 판매하고 있으며 그리고 S-LEC K series 또한 다양한 제품에 적용되고 있습니다.
  
  Polyvinyl Butyral (PVB) Resin은 다음의 4가지 뛰어난 특성을 가지고 있습니다.

• 특징(Characteristics)

1. 뛰어난 수지내 결합력 (High Binding Efficiency) (Characteristics)
2. 소재 표면과의 뛰어난 부착력 (High Adhesion to Surfaces)
3. 유연성을 가진 뛰어난 강인성 (High Toughness with Flexibility)
4. 광학적 투명성 (Optical Clarity)

▶ 또한 PVB Resin은 내산성, 내알칼리성이 매우 뛰어나며 일반 탄화수소계 용제에도 강한 화학적 특성과 상기 4가지 특성으로 인해 자동차 안전유리, 접착제, 코팅제, 도료, 바인더 등으로 널리 사용되는 매우 우수한 resin입니다.

Types of S_LEC B,K and General Characteristics


	Grade	Calculated molecular weight X104	Volatiles (%)	Free Acid (%)	Hydroxyl content (mol%)	Acetyl content (mol%)	Butyral content (mol%)	Acetal content (mol%)	Viscosity (mPa·s)	Tg (℃)
Low polymeri- zation Types	BL-1 BL-1H BL-2 BL-2H BL-5 BL-10 BL-S BX-L	ca. 1.9 ca. 2.0 ca. 2.7 ca. 2.8 ca. 3.2 ca. 1.5 ca. 2.3 ca. 2.0	3 max. 3 max. 3 max. 3 max. 3 max. 3 max. 3 max. 3 max.	0.05max. 0.05max. 0.05max. 0.05max. 0.05max. 0.05max. 0.05max. 0.05max.	ca. 36 ca. 30 ca. 36 ca. 29 ca. 21 ca. 28 ca. 22 37±3	3 max. 3 max. 3 max. 3 max. 3 to 5 3 max. 3 to5 3 max.	63±3 69±3 63±3 70±3 77 min. 71±3 74±3 -	- - - - - - - ca. 61	10 to 30 10 to 30 30 to 60 30 to 50 30 to50 9 to 15 10 to 30 10 to 30	66 63 68 64 62 59 61 74
Medium polymeri- zation Types	BM-1 BM-2 BM-5 BM-S	ca. 4.0 ca. 5.2 ca. 5.3 ca. 5.3	3 max. 3 max. 3 max. 3 max.	0.05max 0.05max 0.05max 0.05max	ca. 34 ca. 31 ca. 34 ca. 22	3 max. 3 max. 3 max. 4 to 6	65±3 68±3 65±3 73±3	- - - -	60 to 100 100 to 170 140 to 220 80 to 150	67 67 67 60
High polymeri- zation Types	BH-3 BH-6 BH-S BX-1 BX-5	ca. 11.0 ca. 9.2 ca. 6.6 ca. 10.0 ca. 13.0	3 max. 3 max. 3 max. 3 max. 3 max.	0.05max 0.05max 0.05max 0.05max 0.05max	ca. 34 ca. 30 ca. 22 33±3 33±3	3 max. 3 max. 4 to 6 3 max. 3 max.	65±3 69±3 73±3 - -	- - - ca. 66 ca. 66	60 to 120* 40 to 90* 20 to 40* 80 to 130* 130 to 200*	71 67 64 90 86
High Tg Types	KS-10 KS-1 KS-3 KS-5	ca. 1.7 ca. 2.7 ca. 10.8 ca. 13.0	3 max. 3 max. 3 max. 3 max.	0.05max 0.05max 0.05max 0.05max	ca. 25 ca. 25 ca. 25 ca. 25	3 max. 3 max. 3 max. 3 max.	- - - -	74±3 74±3 74±3 74±3	10 to 30 50 to 100 110 to 170 210 to 270	106 107 110 110




Note :
Viscosity : *Ethanol/Toluene 1/1, resin content 5%solution;
all others, ethanol/toluene 1/1, resin content 10% solution.
All values is determined by Brookfield type (type M) viscometer at 20℃

* All values shown to table mentioned above are not specification limit.