Create better future & environment with

KOMEMTEC

KOMEMTEC was established in January 2007. KOMEMTEC is a Eco-friendly company that have 2 core technologies. One is PTFE membrane manufacturing technology and the other is a thermal lamination technology.2 kinds of core technologies can be applied to many fi elds like chemicals, textiles, environment, clothing, medical industries, etc.

PTFE MEMBRANE & MATERIAL TOTAL SOLUTION02 PTFE MEMBRANE &

MATERIAL TOTAL SOLUTION 03

History

certif ication

Establishment ofKOMEMTEC CO., LTD.

2007. 01

Technology agreement (DMBR method) with

DAEWOO

2007. 02

Exclusive contact with SUMITOMO

(PTFE membrane)

2007. 03

Acquisition ofISO 9001 certifi cation

2007. 04

Inauguration ofKim, Sung Chul(Current CEO)

2009. 09

Establishment ofTechnical R&D center

2010. 01

Construction ofThermal Laminator

2008. 01

Issuance of a letter of Guarantee from KOTEC

2010. 05

Registration of Venture company

2007. 10

Increase of capital(9 billion KRW ->11 billion KRW)

2010. 10

Exclusive contact with DAEWOO E&C

2007. 07

Selection of Technical development company from

Gyeonggi-do

2010. 11

Registration of Enterprise specializing in parts &

materials

2011. 07

Construction of PTFE membrane production

facilities

2011. 03

Annual agreement with KEMPER company in

GERMANY

2011. 02

Technology of KOMEMTEC

PTFE membrane manufacturing technology

PTFE membrane manufacturing technology

▼ PTFE(Poly Tetra Fluoro Ethylene) ? : The PTFE is a crystal polymer of the melting point is 327�, the continual using temp is 260�. Capable using

a stable condition from low temp(-260�)to high temp.

▼ Characteristics of PTFE(Poly Tetra Fluoro Ethylene) • Temperature and freezing resistance : using capable temperature -200�~+260� • Chemical resistance : Acid, alkali for inactivity • The feature of electricity : high non-conductivity, high frequency feature • The feature of low friction : greatly low the coeffi cient friction • Non adhesiveness, combustibility resistance

▼ Applications of PTFE(Poly Tetra Fluoro Ethylene) membrane

▼ Thermal lamination technology? : Thermal lamination is technology that passing base material (wish lamination) to roller(400�) and nip roller

interval. PTFE membrane laminated to base material that wish to use usage, is our technology.

Molecular structure and shape of PTFE membrane

PTFE membrane

Substrate

Nip roll

Heating Roller(Max 400�)

Air f iltration Air f iltration

High-performance filter bag with PTFE membrane High-performance PTFE HEPA / ULPA filter

KOMEMTEC’s PTFE membrane filter media is a high-performance filter media that is thermally laminated onto nonwoven and woven with PTFE membrane. PTFE membrane filter media supplies high particulate capture rates, low pressure drop, extended Filter life time and energy savings.

KOMEMTEC’s PTFE membrane HEPA / ULPA media is high-performance and eco-friendly media that is made by thermal lamination technology using PTFE membrane with excellent filtration efficiency.

Air filtration Water Treatment Separator for 2nd cell Air filtration Water Treatment Separator for 2nd cell

PTFE MEMBRANE & MATERIAL TOTAL SOLUTION04 PTFE MEMBRANE &

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Shape of Filter bag

Comparison of Filter bag media

Shape of High-performance HEPA /ULPA Filter

Before using

After using

Structure of High-performance HEPA /ULPA Filter

: PTFE membrane : SPUNBOND

▪ HEPA Filter ▪ ULPA Filter

Comparison data of ULPA Filter media

Items PTFE Glass Fiber Low Boron Glass Fiber

Efficiency 99.9999% 99.9999% 99.9999%

Chemical resistance High Resistance Damaged Damaged

Strength Strong Weak Weak

Water-proof Excellent Bad Bad

Boron contain 0 1 1/100PTFEmembrane

Generaluse

Foamcoating

Water Treatment/Breathable clothing Separator for 2nd cell

• Using Hydrophilic PTFE membrane • KOMEMTEC has secured a permanent hydrophilic technology • Decrease of surface fouling due to surface modification• Costs savings due to high flux PTFE membrane

Air filtration Water Treatment Separator for 2nd cell Air filtration Water Treatment Separator for 2nd cell

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MATERIAL TOTAL SOLUTION 07

PTFE membrane filter for water treatment : Plate and hollow fiber

KOMEMTEC’s PTFE membrane filter for water treatment • 2nd cell means rechargeable battery. • IT and mobile goods will increase along with growth potential of 2nd cell.

What is 2nd cell?

• Protecting short circuit• Protecting electrolyte, Ion exchange• Interrupt current at High Temp • Interrupt permeation of obstacle

Shape and function of separator for 2nd cell

• Electronic insulator• Minimal electrolyte(ionic) resistance• Mechanical and dimensional stability• Sufficient physical strength to allow easy handling• Chemical resistance to degradation by electrolyte,

impurities, electrode reactants and products• Effective prevent migration of particles or colloidal or

soluble species between two electrodes• Readily wetted by electrolyte• Uniform in thickness and other properties

Requirements of separator

Comparison data of separator

PTFE (hydrophilic) PE PP PP/PE/PP

Thickness(㎛) 25 20 25 25

Pore Size(㎛) 0.1 0.1↓ 0.1↓ 0.1↓

Porosity(%) 50↑ 45↓ 45↓ 40↓

Melt Temp(℃) 327 130 160 160/130

Wettability-water excellent No good No Good No Good

Chemical stable excellent Good Good Good Shrinkage(%)

100℃-1h0.1 10↑ 10↑ 10↑

PTFE membrane

Breathable clothing

KOMEMTEC’s breathable clothing BRESKIN

KOMEMTEC’s breathable clothing media is the product that is thermally laminated onto existing fabric with PTFE membrane having small pores.So, our product can express good performance like waterproof, windproof, good activity etc.

Characteristics of BRESKIN

• Highly water resistance • Extremely Breathability• Totally Windproof• Excellent durability

Address and contact point

Address 779, Seonggok-dong, Danwon-gu, Ansan-si, Gyeonggi-do, KOREA(SIHWA industrial complex 4 BA – 1001) TEL : +82-31-497-4070 FAX : +82-31-497-4071HOMEPAGE : www.komemtec.com

Contact point- Director I Chun, dae yeul chundy@komemtec.com- Team manager I Shin, hong chul shinhc@komemtec.com- Manager I Park, jang il parkji@komemtec.com

Oct, 2011. Designed by BizPlus AD Inc. www.bizplusad.co.kr