chemistry of gma

7/29/2019 Chemistry of GMA

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Product Information

Page 1 of 4 Glycidyl Methacrylate (GMA) Form No. 296-01330-1205X-IK

Dual Functionality Monomer for Coatings and Resins

Introduction Glycidyl methacrylate (GMA) monomer has dual functionality, containing both methacrylicand epoxy groups. Both of these groups readily react with a wide range of monomers and

functionalized molecules to provide the user with maximum freedom and flexibility in

polymer design. The dual functionality of GMA also brings together the desirable properties

of both methacrylics and epoxies. For example, the weatherability of methacrylics and the

chemical resistance of epoxies are available in one product. Leading-edge technology

enables Dow to maintain the highest standards in the world for product quality and

consistency. High total assay and low residual epichlorohydrin levels are key characteristics

of GMA. Dow has been producing this monomer since the early 1990s.

Typical

Applications

Production of epoxy functional methacrylic resins with predetermined glass transitiontemperatures

Grafting to functionalize olefin copolymers Production of multifunctional (meth)acrylates

Typical

Properties

Property(1) Value

Appearance Clear, colorless liquid

Boiling Point @ 760 mm Hg 189C (372.2F)

Freezing Point


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Responsible Care is a service mark of The American Chemistry Council in the United States


Contents Sales Specification Typical Analyses

Assay 99.0% Min. 99.83%

Water Content 0.15% Max. 0.03%

Color, Platinum Cobalt 25 Max. 5

Typical Analyses(1)

and Sales

Specification for

GMATotal Chlorine 0.25% Max. 0.07%

Epichlorohydrin 99 ppm Max. 27 ppm

MEHQ(2) 50-150 ppm Max. 103 ppm

(1) Based on 2001-2002 averages. Average values not to be construed as specifications.

(2) Inhibitor is methyl ether of hyroquinone (MEHQ).

Safety and

Handling

The Dow Chemical Company provides its customers with a product specific Material Safety

Data Sheet (MSDS) or Safety Data Sheet (SDS) to cover potential health effects, safe

handling, storage, use and disposal information. Dow strongly encourages its customers to

review the MSDS or SDS on its products and other materials prior to their use.

In all operations involving GMA, where employee exposure is possible, workers should wear

chemical worker's goggles, safety hat, impervious boots, gloves, and outer clothing.

Trousers should be worn outside the boots and sleeves should be taped to gloves to

prevent chemical contact with skin.

Dow product literature, including MSDS or SDS, should be consulted prior to use of Dow

products. Product literature which includes more detailed information for GMA monomer on

product stewardship-related topics such as toxicity, ecological concerns, bulk handling and

storage, and handling recommendations is also available. These materials may be obtained

from our web site, your Dow representative or our Dow Customer Information Group.

Exposure Guide 1.0 ppm (1)

Odor Warning Properties Not Determined

Skin Absorption Warning Yes

Property Summary

for GMA

Vapor Pressure @ 25C (77F) 0.33 mm Hg

Vapor Concentration @ 25C (77F) 434 ppm

Oral Toxicity, LD50 Low 700 mg/kg

Burn Potential for Eyes & Skin SevereFirst Aid, Eye Wash 15 minutes

Recommended Absorbant Olefin/Sand

(1) The Dow IHG (Industrial Hygiene Guide) is a value that Dow has set as an occupational exposure guide based on our

assessment of the chemicals toxicology in the absence of an industry accepted value or a government required level.

Product

Stewardship

The Dow Chemical Company has a fundamental concern for all who make, distribute, and

use its products, and for the environment in which we live. This concern is the basis of our

Product Stewardship philosophy by which we assess the health and environmental

information on our products and then take the appropriate steps to protect employee and

public health and the environment. The Dow Chemical Company has enduring commitments

to Responsible Carein the management of chemicals worldwide. Our Product Stewardship

program rests with every individual involved with Dow products from the initial concept andresearch to the manufacture, sale, distribution, and disposal of each product.

Dow has developed a strong product stewardship program for its GMA monomer because of

its relative toxicity, reactivity, and sensitivity to contaminants. In our efforts to promote the

knowledgeable and safe handling of GMA, our product steward or designee must approve

all sample requests and first-time commercial orders, and talk to customers prior to

shipment.


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Trademark of The Dow Chemical Company (Dow) or an affiliated company of Dow


Customer Notice Dow encourages its customers and potential users of Dow products to review their

applications for such products from the standpoint of human health and environmental

quality. To help ensure that Dow products are not used in ways for which they were not

intended or tested, Dow personnel are available to assist customers in dealing with

ecological and product safety considerations. Your Dow sales representative can arrange

for the proper contacts. Dow literature, including MSDS or SDS, should be consulted prior to

the use of Dow products.

An overall appraisal of plant operation, exposure potentials, expected exposure duration,

and specific activities is required. This appraisal should be done by a qualified industrial

hygienist in conjunction with engineering, maintenance, supervisory, and management staff.

Medical

Application

Policy

Dow will not knowingly sell or sample any product or service (Product) into any commercial

or developmental application that is intended for:

(a) permanent (long term) contact with internal body fluids or internal body tissues. Long

term is a use which exceeds 72 continuous hours (except 30 days for PELLETHANE

Polyurethane Elastomers);

(b) use in cardiac prosthetic devices regardless of the length of time involved (cardiac

prosthetic devices include, but are not limited to, pacemaker leads and devices,

artificial hearts, heart valves, intra-aortic balloons and control systems and ventricular

bypass assisted devices);(c) use as a critical component in medical devices that support or sustain human life; or

(d) use specifically by pregnant women or in applications designed specifically to promote

or interfere with human reproduction.

Additionally, all Products intended for use in pharmaceutical applications must pass the then

current Pharmaceutical Liability Guidelines. For additional information please contact your

regular Dow representative.

Dow does not support the use of the GMA monomer in implant applications or use of the

unreacted monomer in consumer products.

Food ContactApplications Glycidyl Methacrylate meets the requirements of the Food Additive Regulations listed below.Uses are subject to good manufacturing practices and any limitations which are part of the

regulations.

The information given here is for use as a general guideline. The regulations should be

consulted for complete details. Some uses may have been overlooked; specific regulations

will be reviewed on request.

The legal judgments expressed herein are felt to be accurate. The final responsibility is,

however, up to the user. Your legal counsel should be consulted if needed.

FOOD ADDITIVE REGULATIONS (21 CFR):

Regulation Number Title

175.105 Adhesives.(c) (5) Polymers: Homopolymer and Copolymer

175.300 Resinous and Polymeric Coatings(b) (3) (xxxiii) Miscellaneous Materials


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Page 4 of 4 Trademark of The Dow Chemical Company (Dow) or an affiliated company of Dow Form No. 296-01330-1205X-IK

Food Contact

Applications

(continued)

Vinyl acetate-dibutyl maleate copolymers produced when vinyl acetate and dibutyl maleate

are copolymerized with or without one of the monomers: Acrylic acid or glycidyl

methacrylate. For use only in coatings for metal foil used in contact with foods that are dry

solids with the surface containing no free fat or oil. The finished copolymers shall contain at

least 50 weight-percent of polymer units derived from vinyl acetate and shall contain no

more than 5 weight-percent of total polymer units derived from acrylic acid or glycidyl

methacrylate.

176.170 Components of paper and paperboard in contact

with aqueous and fatty foods

(b) Acrylic copolymers

176.180 Components of paper and paperboard in contact

with dry food.

(b) (2) Polymers: Homopolymers and copolymers

If your applications include food contact requirements, please contact your Dow

representative for further information and forthcoming EC regulations.

Regulatory

Status

The CAS regulatory number and other chemical inventory numbers for GMA are provided in

the Chemical Inventory Listing below.

For more information on the regulatory status of these products, please refer to the MSDS

or SDS for this product.

CAS Number(1) 106-91-2

Europe EINECS 2034419

United States TSCA 106-91-2

Canada DSL 106-91-2

Australia AICS 106-91-2

Japan ENCS 2-1041

Korea KECL KE-25148

Philippines PICCS 106-91-2

China SEPA 106-91-2

Chemical

Inventory

Listing

(1) Please refer to the MSDS or SDS for this product to ensure this CAS number is consistent with the product(s) you use.

Contact information:

North America: 800-441-4369

+1-989-832-1426

+1-989-832-1465 (fax)

Mexico: +1-800-441-4369

Brazil: +55-11-5188-9222

+55-11-5188-9749 (fax)Europe: +800-3-694-6367

+32-3-450-2240

+32-3-450-2815 (fax)

Asia Pacific: +800-7776-7776#

+800-7779-7779# (fax)

+60-3-7958-3392

+60-3-7958-5598 (fax)#except Indonesia and Vietnam

http://www.acrylicmonomers.com

Notice: No freedom from any patent owned by Dow or others is to be inferred. Dow assumes no obligation or liability for the

information in this document. The information provided herein is presented in good faith and is based on the best of Dows

knowledge, information, and belief. Since use conditions at non-Dow facilities are beyond Dows control and governmental

regulations may differ from one location to another and may change with time, it is solely the Buyers responsibility to

determine whether Dows products are appropriate for the Buyers use, and to assure the Buyers workplace, use, and disposal

practices are in compliance with laws, regulations, ordinances, and other governmental enactments applicable in the

jurisdiction(s) having authority over Buyers operations. Consequently, Dow assumes no obligation or liability for use of thesematerials and makes no warranty, express or implied. The user of the information provided is solely responsible for compliance

with any applicable federal, state, provincial, and local laws. NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.

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