Mitsui Chemicals

Watching the world

MK Series

MITSUl CHEMlCALS, INC.
Health Care Materials Division

Copyright© 2023 Mitsui Chemicals, Inc. All Rights Reserved.
All images in this catalogue are copyright of Mitsui Chem icals, Inc.

=/jp.mitsuichemicals.com/en/special/mr/|MVC-007E Ver.1 03/2023

0『 O『 te -nf0『 at•ion| About Mitsui ChemicaIs, Inc.
Mitsui Chemicals, Inc. (MCI) contributes to society by providing high quality
products and services to customers through innovations and creation ofmaterials while maintaining harmony with the global environment. MCI has over
30 years of experience in the development and production of innovative opticallens materials for the global market. The optical monomer brand name of MR ™
is now globally recognized as a premium high index lens material. In 2008,SDC Technologies, Inc., a California based premium coating materialcompany, became a MCI group company. In 2011, MCI aquired Acomon AG.,a leading optical lens material manufacturer well known for its RAV? Series ofR.I. 1.50 lens material. Thus MCI is able to provide a full range of lens materialand coating solutions to global lens manufacturers.
In 2013, KOC solution, a Korean manufacturer and distributor of plastic
optical lenses monomers, became a MCI group company.
This enables improvement of MCI's product portfolio by its middle index tohigh index monomers.

|| R&DStrength
MCI is globally known as a leading manufacturer of urethane products
and in 1987 became the first company in the world to apply thiourethanechemical technology to ophthalmic lenses. MCI's global R&D networkwith a broad range of technology contributes to excellence in designing
the most advanced molecules for ophthalmic lens materials.

--Sodegaura R&D Center
Chiba,Japan- Pioneer in high index lens material development -I Early 1980s j Started development of high index lens materials.
™

| Commercial release of MR-10™ (R.1.1.67)

1999

Commercial release of MR-8™ (R.1.1.60)

2008

Acquisition of SDC Technologies, Inc., a California based premium coating material company

2009

Acquisition of Film Specialties, Inc., an anti-fog coating specialty company of SDC Technologies, Inc.

2011

Acquisition of Acomon AG, a Swiss based lens material company

2013

Mitsui Chemicals becomes majority shareholder of KOC Solution, a Korea based lens material company． , :沼ウ"―-．守 恥 i :i · II •-'‘千叫 “i 9紅J. -}—-っ�一tー-’―•攣•_High-end Chemical Plants|Acomon Head Office

OCK
SOLUTION,•r-oo· KOC SolutionHead Office -,.,;-＼戸�・―

10,10.ml"'·,i. Mitsui Chemicals Head Office
SDC Technologies Head Office
FSI Coating

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0 Mitsui Chemicals, Inc.
0-SDC Technologies,lnc.
FSI Coating,lnc.
OAcomonAG
0 KOC Solution Co., Ltd2ーMitsui Chemicals, Inc. contributes to the development of "epoch making" lens materials to provide the best solution for optical lens users.

.

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MR ™ Series sales, marketing and technical service are conducted by MCI global headquarters inJapan and 7 regional headquarters around the globe. Therefore, quick customer service in multiple
languages is available for the highest customer satisfaction. Additionally, SDC Technologies, Inc. andAcomon AG also have global networks to support their customers in each region. Customersatisfaction is always the MCI group's first priority.

▲•’
99,l Commercial release of MR-7 , the world's first refractive index 1.67 ophthalmic lens material�'.

!.9 -..'. -_J� ,| GIobaI Network0|

1991

|

MR ™ Series is produced and delivered according to strictly
controlled operation protocols for the sustainable supply of highquality materials to lens manufacturers. The MR ™ Series production
plant is certified under 1S09001 and strict precaution is taken not onlyin monomer production, but also in packaging, storage and logistics.
As a chemicals company, human and environmental safety is a toppriority. The MR ™ Series plant is certified under 1S014001 and all
operations are conducted with great consideration to minimize impact
on the environment.

ヽ||1987 j Commercial release of MR-6™, the world's first thiourethane high index ophthalmic lens material (R.1.1.60)| Production, QualityControl and CSR

ducl.Lineu
MR Se『ies ....Tradema『 k of Safe, Clea『 and Lightweight Lenses ....
Excellent optical materials with high refractive index, high Abbe number, low specific gravity and high impact
resistance are provided by polymerizing monomers of MR ™ Series. MR ™ Series is especially suitable forophthalmic lenses and is known as the first thiourethane based high index lens material. MR ™ Series offers avariety of products to provide the best solution for optical lens users.
™

Note: MR ™ Series is a brand name of the raw material for optical lenses.
MR ™ Series based lenses are available from most leading lens manufacturers.

R.I. 1.60 : MR-8™
The best balanced high index lens material with thelargest share of the R.I. 1.60 lens material market.
MR-8 ™ is suited to any strength ophthalmic lensand is a new standard in ophthalmic lens material.

R.I. 1.67: MR-7™ & MR-10™
Global standard R.1.1.67 lens material.
Great materials for thinner lenses with strong
impact resistance.
Material Characteristics
MR-7™ : Better color tintability
MR-10™ : Higher heat distortion temperature™

R.I. 1.74: MR-174

Ultra high index lens material for ultra thin lenses.
Strong prescription lens wearers are now free from thickand heavy lenses.

Comparison of physical properties of lenses made with MR ™ Series vs. other optical materials

,,

Other
MR-8™ MR-7™ MR-10 ™ MR-174 ™

Refractive
Index
(ne)
Abbe
Number(ve)Heat Distortion
Temperature(OC)

II 1.60
II

II

II’’

II
II

41

II 118

1.67

II

II

II

MiddleIndex

ADC(CR-39®
RAV 7™)

Crown
Glass

34-36

58

59

84

>450

II

II

1.67

Acrylic
Poly
carbonate (R.I. 1.60)

1.74

1.59

32

28-30

32

31

II

31

II

85

|

100

78

142-148

88-89
Good

Good

Good

None

Poor

Poor

Good

Good

Tintability

Good

Excellent Good

OK

None

ImpactResistance

Good

Good

Good

OKGoodStatic Load
Resistance

GoodGood

Good

OK

GoodMR, MR-7, MR-8, MR-10, MR-174, and RAV 7 are trademarks of Mitsui Chemicals, Inc.
CR-39 is a trademark of PPG Industries, Inc.
All properties are representative measurement figures obtained under specified test methods at Mitsui Chemicals, Inc. and are not guaranteed as specifications.

| Premium LenS Applications ofthe MかSeries
SingleVision/Progressive Ophthalmic Lenses
MR ™ Series has superb processability to realize desired lens design.

|Wide Color Range Sunglasses
MR ™ Series has good color tintability making it suitable for high fashion sunglasses
which have special color needs.
TRANSITIONS ® Photochromic Lens System
MR ™ Series has good compatibility with TRANSITIONS® photochromic lens systems.
Polarized Lens
MR ™ Series is widely used for both ophthalmic & piano polarized sunglasses.
Sophisticated Design
MR ™ Series has good mechanical strength and stress free properties making it suitablefor various unique lens designs such as "Rimless frame" or "High curve lens".
TRANSITIONS is a trademark of Transitions Optical, Inc.

43＊

1. Preparation of MR™ Series

心戸乞2. FillingTinting＊Mix MR ™ monomer(component) A & B withadditives, then degas
the MR ™ monomer mixture.

13Coating

5. Tinting• 1 Final Inspection

Grind and polish the surfaceof the MR ™ lens to create acurvature for requiredstrength.

゜ら

Tint the surface of the MR ™
lens.

Coat the surface of the MR ™
lens to protect fromscratches, reflection etc.

7. Final Inspection

一ーJapan.Headquartersof MR T•series Business

Fill molds with the MR ™
monomer mixture.

Place the filled molds into
ovens, where they undergoa heat-cycle, turning theMR ™ monomer mixture
into a MR ™ lens.
4. Grinding/ Polishing• 1 Polymerization

1··oGrinding/PolishingFilling］,

Preparation of
MかSeries |*Anti Reflection Coating
Inspect the coated lens.

MITSUI CHEMICALS, INC.
Vision Care Materials DivisionTokyo Midtown Yaesu, Yaesu Central Tower,
2-2-1 Yaesu, Chuo-ku, Tokyo 104-0028, JAPANTEL: +81-3-6880-7450
FAX: +81-3-6880-7560

https://j p.mitsuichemicals.com/en/
China

MITSUI CHEMICALS (CHINA) CO., LTD.
Functional Products Division(Healthcare)
Room 2102, Capital Square, 268 Hentong Road,
Jing'an District, Shanghai 2000700, P.R.C
TEL: +86-21-5888-6336
FAX: +86-21-5888-6337
https://mccn.mitsuichemicals.cn/

MITSUI CHEMICALS ASIA PACIFIC, LTD.
Health Care Division
3 Harbour Front Place #10-01, Harbour Front Tower 2,Singapore 099254, SINGAPORE
TEL: +65-6534-2611
FAX: +65-6535-5161
https://ap.mitsuichemicals.com/

Typical example of lens production process.
Lens production process varies among lens manufactureis.

|MITSUI CHEMICALS(THAILAND) CO.,LTD.
Functional Materials DivisionNision Care)
33/4 Unit TNA01, Floor 33, Tower A, The 9th Towers
Grand Rama 9, Rama 9 Road, Kwaeng Huay Kwang,
Khet Huay Kwang, Bangkok , Thailand 10310, Thailand
TEL: +66-2-026-3242
FAX: +66-2-107-1855|| India

MITSUI CHEMICALS INDIA, PVT. LTD.
Health Care Materials Division
3rd Floor, 8-Wing, Prius Platinum, D3, District Center,
Saket, Delhi - 110017, India
TEL: +91-11-3010 7400
FAX: +91-11-3010 7499
https://in.mitsuichemicals.com/|

MITSUI CHEMICALS AMERICA, INC.
61 Metro Drive, San Jose, CA 95110
TEL: +1-914-253-0777
FAX: +1-914-253-0790
https://www.mitsuichemicals.com/
MITSUI CHEMICALS EUROPE GmbH
Health Care DivisionOststr. 34, 40211 Dusseldorf, GERMANY
TEL: +49-211-1733-0
FAX: +49-211-1719350
https://eu.mitsuichemicals.com/

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