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Vinyl chloride-Vinyl acetate based copolymer SOLBIN

SOLBIN is a modified resin that combines the toughness and chemical resistance of vinyl chloride, the strong adhesiveness and plasticity of vinyl acetate, and other polar groups that enhance adhesive properties and solubility. Due to its many outstanding characteristics, including its lack of odor or taste and high resistance to water absorption, Solbin is used as a binder for magnetic cards and tapes, as a coating agent for beverage cans and moisture-proof cellophanes, and also as part of various paints, inks, and adhesives.

Characteristics of SOLBIN

SOLBIN is a copolymer resin prepared from vinyl chloride, vinyl acetate, and other materials. It has the following characteristics:

  1. Dissolves in organic solvents such as ketone and ester.
  2. Forms an odorless, tasteless, and transparent film.
  3. Highly resistant to chemicals such as acids, alkalis, and salt water.
  4. Forms a coating film that is highly resistant to water.
  5. Coating films are fire-retardant and self-extinguishing.
  6. Coating films are thermoplastic and heat-sealable.
  7. Highly compatible with urethane and melamine resins.
  8. Grades with hydrophilic groups favorably disperse inorganic pigments such as magnetic powder.
  9. Grades with hydroxyl groups react with isocyanate to form cross-links.


Product types



Characteristics of product line

Printing Ink
Grade Composition(VC) Composition(VAc) Composition(Other)
(Wt%)		 Degree of polymerization Average molecular Mn
(×104)		 Glass-transition temperature
(℃)		 Viscosity(mPa・s/25℃) K-value Features
A 92 3 5 Vinyl alcohol 420 3.5 74 220 48 Standard grade of saponified type, good compatibility with various resins
AL 92.5 2.5 5 Vinyl alcohol 300 2.7 74 70 42 Low viscosity type
ALLP 92 1 7 Vinyl alcohol 260 1.4 75 55 39 Low viscosity/high vinyl alcohol content type of AL
AP 92.5 1 6.5 Vinyl alcohol 430 2.9 75 210 49 High vinyl alcohol content type
C 87 13 420 3.6 70 150 48 Standard grade of bipolymer
C5R 79 21 350 2.6 64 60 45 Specialized type in solubility and flexibility
CH 86 14 650 5.0 70 700 57 High viscosity type, good heat resistance / weather resistance
CL 86 14 300 2.5 68 60 42 Low viscosity type, good solubility
CLL3 83 17 260 1.4 66 30 39 Specialized type for inkjet
CN 89 11 750 4.2 73 60 High vinyl chloride content type, high viscosity, high coating film strength
CNL 90 10 200 1.6 69 30 33 Low viscosity type of CN, good solubility
M5 85 14 1 Dicarboxylic acid 430 3.3 70 130 49 Good adhesion to metal and aluminum
M5R 77 22 1 Dicarboxylic acid 390 3.2 64 70 47 M5 with high vinyl acetate content, good heat sealability at low temperatures
TA3 83 4 13 Hydroxyalkyl acrylate 350 3.2 64 80 45 Low viscosity type with good pigment dispersibility/thermal stability
TA5R 87.5 1 11.5 Vinyl alcohol 300 2.9 75 130 42 High vinyl alcohol content type, specialized type in dispersibility/solubility
TAO 91 2 7 Vinyl alcohol 360 2.0 76 230 45 Good dispersibility in pigments and magnetic powder
Coating&Paint
Grade Composition(VC) Composition(VAc) Composition(Other)
(Wt%)		 Degree of polymerization Average molecular Mn
(×104)		 Glass-transition temperature
(℃)		 Viscosity(mPa・s/25℃) K-value Features
A 92 3 5 Vinyl alcohol 420 3.5 74 220 48 Standard grade of saponified type, good compatibility with various resins
AL 92.5 2.5 5 Vinyl alcohol 300 2.7 74 70 42 Low viscosity type
C 87 13 420 3.6 70 150 48 Standard grade of bipolymer
C5R 79 21 350 2.6 64 60 45 Specialized type in solubility and flexibility
CH 86 14 650 5.0 70 700 57 High viscosity type, good heat resistance / weather resistance
CL 86 14 300 2.5 68 60 42 Low viscosity type, good solubility
CN 89 11 750 4.2 73 60 High vinyl chloride content type, high viscosity, high coating film strength
M5 85 14 1 Dicarboxylic acid 430 3.3 70 130 49 Good adhesion to metal and aluminum
TA3 83 4 13 Hydroxyalkyl acrylate 350 3.2 64 80 45 Low viscosity type with good pigment dispersibility/thermal stability
TA5R 87.5 1 11.5 Vinyl alcohol 300 2.9 75 130 42 High vinyl alcohol content type, specialized type in dispersibility/solubility
TAO 91 2 7 Vinyl alcohol 360 2.0 76 230 45 Good dispersibility in pigments and magnetic powder
Adhesive
Grade Composition(VC) Composition(VAc) Composition(Other)
(Wt%)		 Degree of polymerization Average molecular Mn
(×104)		 Glass-transition temperature
(℃)		 Viscosity(mPa・s/25℃) K-value Features
A 92 3 5 Vinyl alcohol 420 3.5 74 220 48 Standard grade of saponified type, good compatibility with various resins
AL 92.5 2.5 5 Vinyl alcohol 300 2.7 74 70 42 Low viscosity type
C 87 13 420 3.6 70 150 48 Standard grade of bipolymer
C5R 79 21 350 2.6 64 60 45 Specialized type in solubility and flexibility
CH 86 14 650 5.0 70 700 57 High viscosity type, good heat resistance / weather resistance
CL 86 14 300 2.5 68 60 42 Low viscosity type, good solubility
CN 89 11 750 4.2 73 60 High vinyl chloride content type, high viscosity, high coating film strength
M5 85 14 1 Dicarboxylic acid 430 3.3 70 130 49 Good adhesion to metal and aluminum
M5R 77 22 1 Dicarboxylic acid 390 3.2 64 70 47 M5 with high vinyl acetate content, good heat sealability at low temperatures
Note: The values in the table are representative values, not standard values.

*1 Resin concentration; 20wt%, solvent; MIBK/toluene=1/1 / measured by Type B viscometer(25℃)
 

Properties of SOLBIN

(1) SOLBIN's representative powder properties
ItemCAM5Test method
Particle size 100-120μ 100-120μ 100-120μ Optical tansmission particle size distribution meter
Sieve test
100 mesh pass		 90% 90% 60% Sieve test
100 mesh pass 149μ*
Sieve test
200 mesh pass		 10% 5% 10% 200 mesh pass 74μ *
Specific gravity 1.4 1.4 1.4  
Bulk specific gravity 0.8 0.7 0.7 JIS K-6721
Repose angle 23-25° 25-28° 40-50°  
Electrification * Maximum: +1500V
* After 10 seconds: +400V
* After 1 minute: 0		 * Minimum: -1500V
* After 30 seconds: -1100V
* After 1 minute: -250V		   Statiron M static electricity meter(20℃x60%RH)

Note: JIS Standard sieve.

(2) SOLBIN's representative film properties

Physical properties

ItemCAM5Test method
Moisture permeability of film
(g/m2·day)		 Approx. 170 Approx. 130 Approx. 180 JIS Z-0208
40±0.1℃
90±2%RH
0.02-0.03mm thickness
Physical properties
Elongation (%)
Tensile strength (kg/mm2)
Young's modulus (dyne/cm2)		 1-2
4-6
2-3x1010		 1-2
4-6
2-3x1010		 2-3
4-5
2-3x1010		 23±1℃
80±2%RH

Chemical resistance

Test itemChemicalImmersion timeCAM5
Acid resistance 10% HNO3 144 hours Excellent Excellent Excellent
Alkali resistance 10% NaOH 144 hours Excellent Excellent Excellent
Water resistance Pure water 144 hours Excellent Excellent Excellent
Salt water resistance 5% salt water 144 hours Excellent Excellent Excellent
Alcohol resistance 60% ethyl alcohol 18 hours Excellent Excellent Excellent
Heat resistance Pure water 77℃ 45 minutes Excellent Slightly whitened Slightly whitened

(3) Organic solvents used in SOLBIN
Temperature25℃50℃Temperature25℃50℃
Solvent Methanol × × Solvent Cellosolve △ △
IPA × × Acetone ○ ○
n-Butanol × × MEK ○ ○
Methyl acetate × ○ MIBK ○ ○
Ethyl acetate △ ○ Isophorone ○ ○
Butyl acetate △ ○ Cyclohexanone ○ ○
DIDP △ △ Ethylene chloride ○ ○
DINP △ △ Toluene × ×
Tetrahydrofuran ○ ○ Solvesso #150 × △
Dioxane ○ ○ Aliphatic carbide × ×

  • ○: Soluble
  • △: Swells or partially insoluble
  • x: Insoluble

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