MOMENTIVE’S HIGH CLARITY SILICONE (LSR) FOR ... Industry Leadership through 70 Years of Silicone Innovation First “direct process” for making methylchlorosilanes 1930s First

MOMENTIVE’S HIGH CLARITY SILICONE (LSR) FOR LIGHTING AND TRANSPARENT APPLICATIONS Plastics Conference 2016 - Injecting Innovation, Hong Kong, 4 November 2016 H. S. Hwang, Senior Global Project Manager, Marketing Momentive Performance Materials

November 4th, 2016

Copyright © 2016 Momentive Performance Materials Inc. All rights reserved. CONFIDENTIAL


SILICONE ELASTOMERS – CLEAR AS GLASS

SILOPREN* ULTRA CLEAR LSR 7000 SERIES FOR LIGHTING AND TRANSPARENT APPLICATIONS

Industry Leader

TRANSFORMATIONAL COMBINATION FORGES AN INDUSTRY LEADER

GE Bayer Silicones

85 technology centers

10,000 associates

11,000 customers

Global Capability

Momentive Performance Materials

4

Industry Leadership through 70 Years of Silicone Innovation

First “direct process”

for making

methylchlorosilanes

1930s

First silane coupling

agents for fiberglass

and composites

1950s

First non-

hydrolyzable silicone

surfactant for

polyurethane foams

1962

First construction

sealant that hardens

at room

temperature

1964

First man walks on

moon in silicone

bootsoles enabled

by GE Silicones

1969

First true structural

silicone glazing for

architectural

applications

1974

First commercialized

silicone for 2-in-1

shampoo and

conditioner

1986

First silicone

polyethers

introduced for textile

treatment, laundry

softeners and

personal care

1996

First successful one-

part addition cure

technology for

adhesives and

pharmaceutical

tubing

2001

First introduction of

NXT* sulfur silane for

next generation

automobile tires

2004

First use of Silwet*

hydrolytically stable

super-spreader

silicones for in-can

pesticides

2008

75 Years of Silicone Innovation

*NXT and Silwet are trademarks of Momentive Performance Materials Inc.

Momentive – Silicone leader with 75 years!

Lighting is one of the key-technologies of the 21st century

5 Copyright © 2016 Momentive Performance Materials Inc. All rights reserved. CONFIDENTIAL

Materials for Optics

Critical to function – a wish list

Innovations in lighting applications need new materials, the ideal candidate should provide:

High Transparency over a wide range of wavelengths

Homogenous optical properties, no birefringence

High micro crack resistance

Design freedom

Temperature resistance from -40°C up to > 150°C

High resistance against rapid climatic changes

High resistance against Ozon and strong UV-light

Low chromatic aberration

Low thermo-optical coefficient

High precision molding of microstructured surfaces

High efficient and automated Injection Molding Process

Cost efficiency

Milestones

- 2009: Introduction and Life Demo LSR7070 during plastics fair Fakuma in Germany

- Conferences

- Customer projects

- Industry projects

- 2014: First applications and break through

in industrial (Street-) and automotive (Headlamp-) Lighting

Driven by Performance – Pushed by Innovations in Lighting


High clarity Liquid Silicone Rubber (LSR)

A new material for the Lighting Industry

KIMW Industry

project, 2010

Fakuma 2009

Conference Papers

Khatod product

release 2014

- LSR is not a plastic and not glass

- Parts out of LSR are flexible

- LSR is a thermosetting material

- LSR is a 2-Component “fluid” and is molded according to the LSR Injection Molding Process

meets



A new understanding of material and function

World of plastics and glass

Learn about LSR

World of silicones

Learn about optics

- Optics do not require dampening, decoupling or sealing properties

- Optics need defined and precise surfaces

- Optics need transparency

8

Innovations & Market “Firsts” High clarity Liquid Silicone Rubber (LSR)

A new material for the Lighting Industry

Technology & Market Leadership in Moldable Optics Since 2008

R – Si - O – Si - O – Si - R

R

R

R

R R

R n

9

What is Silicone?

The basic structure of Silicones – the key to performance

Poly-Di-Methyl-Siloxan n = 100 – 1000 => LSR n = 2000 – 12000 => HCR

Bonding Energy

Si -- O= 451 kJ/mol

C -- C = 352 kJ/mol

R = - CH3

= - CH=CH2

= -CH2-CH2-CF3

= -


Basic Properties:

- Excellent resistance against very low

and against very high temperatures

- Excellent resistance against UV-Light

- Excellent resistance against ozon



A different point of view

Typical product data values are averages and should not be used as specifications.

*Silopren is a trademark of Momentive Performance Materials Inc

Mechanical properties of Silopren* in comparison, typical values

High transparency over a broad range of wave length



Material properties



Isotropic optical properties - no birefringence



Material properties



Excellent resistance against high temperatures

Examples after storage 6480h @150°C



Material properties



Excellent wheathering resistance, no micro cracks



Material properties

2810 KJ is approximately 1 yr FL exposure at 45 deg facing south 2810 KJ is approximately 0.8 yr AZ exposure at 45 deg facing south



Principles of LSR injection molding vs. injection molding of thermoplastics

15


A different point of view – LSR Molding Technology

LSR (liquid silicone rubber)

injection molding

ETP (engineering thermoplastic material)

injection molding

2 component pumping system - hopper

feeding screw - 3 zone compression screw

cooling bands - heating bands

cold runner needle valve nozzle - open gate to hot runner needle valve nozzle

heated tool with vacuum - cooled tool with air venting

tool with highest precision (5µm) - tool with high precision

forced demolding is possible

(with undercuts) -

tool with core technology

for special part design

Hot Area Cool Area

LSR INJECTION MOLDING = ETP INJECTION MOLDING


Fully Automated LSR Injection Molding Processing

16

LSR is a 2-Component, platinum catalyzed system characterized by A very low viscosity Fast curing poly-addition curing Providing Fast curing Easy flow and low injection pressure Long flow path Easy filling of most complex mold cavities Enabling Multiple cavity molds Intricate designs Close- tolerance parts Short cycle time Fully automated injection processing without sprue or distribution losses (cold runner technology) Easy and flexible coloring of parts, also small bulks Flash-free processing, no secondary operations Clean operation

Screw

A B Jacket

Stationary

Platen

Moveable

Platen

Hot

Mold

P

Mixing Block

Static Mixer

Pla

tinu

m

Cro

ss

link

er

3rd S

trea

m

Cold

Barrel

LSR is easy to process and can create technical & commercial benefits!





Injection molding process overview

../../../../1 2007 20121H/3.Operations/Technical information/LSR Machine & Mold/Elmet/VIDEO_TS/VTS_06_1.VOB

LSR molding – high precision and efficency



LSR Molding Technology

PMMA VMQ

POQ64 LSR 7080J

Temperatur 2 [°C] 230 25

Temperatur 1 [°C] 90 140

Differenz [K] -140 115

CTE * 106 65 265

Startvolumen 100% 91%

Endvolumen 97% 100%

LSR is expanding in the cavity during molding - Homogenous internal pressure

- 100% filling without holding pressure

- No sinking marks

- Precise shaping of micro structered surfaces

- Easy filling of thick sections through thin sections

- Direct gating through thin gates

200 mm



Picture: IKV

• Low fresnel losses

• High transparency over wide range of wavelength

=> high light output

• High temperature resistance

• Excellent resistance against UV-light

• Micro crack resistance

=> function under harsh conditions and in direct contact with high power LEDs

• Low bifringence

• Flexibility

• LSR molding technology

• Broad range of hardnesses

=> Design freedom

=> Integration of function

=> Diffractive optics

Silicones provide and enable…



Functions

Picture: Arburg

Picture: KIMW

Picture: IKV

Picture: Khatod

Picture: KOSTAL

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Hwang, Heeseok (HS) Senior Global Project Manager Marketing Elastomers

Momentive Performance Materials 8F, 9F Daeryung Post Tower 6cha, 298 Beotkkot-ro, Geumcheon-gu Seoul 08510, Korea +82 2 6201 4615 +82 2 6201 4601 F +82 10 3728 1851 M [email protected]

Documents

MOMENTIVE’S HIGH CLARITY SILICONE (LSR) FOR ... Industry Leadership through 70 Years of Silicone Innovation First “direct process” for making methylchlorosilanes 1930s First