ExxonMobil licenses low density polyethylene (LDPE) technologies developed from over 45 years of LDPE production. Providing services under licensing agreements, ExxonMobil can present a unique combination of solutions to lower manufacturing costs and improve product performance in a variety of applications.

Low density polyethylene technology and services

High pressure technology for LDPE

LDPE and ExxonMobilLDPE has been one of the most useful and versatile polyolefins ever produced. It is a key ingredient in thousands of applications and presents a unique combination of low manufacturing costs and excellent product performance as compared to other polyethylenes. Worldwide production of LDPE is expected to increase as current market demand grows and new markets are created. ExxonMobil has designed and safely operates several lines, ranging from 20 to 320 kta in the United States, Belgium, and our joint venture in Saudi Arabia. ExxonMobil has operating licensee LDPE units up to 450 kta. ExxonMobil’s comprehensive LDPE product line ranges from homopolymers to ethylene vinyl acetate (EVA) copolymers, in both high and low vinyl acetate (VA) formulations.

ExxonMobil’s LDPE technology scopeCustomizable designs and ExxonMobil’s continuous research allows a wide range of options with cost of design and technology adapting to fit your needs and priorities. The following is a general hierarchy of our technology scope:

Base high-pressure technology – this category covers over 80% of the market and includes lines that can produce from 20 thousand to 450 thousand tonnes per year (autoclave reactors up to 190 thousand tonnes per year and tubular reactors up to 450 thousand tonnes per year). These products range from 0.2 to 150 melt index, with densities from 0.913 to 0.925 g/cm3.

Medium density technology – designed for demanding applications with medium density grades from 0.925 to 0.935 g/cm3 to provide better properties such as high stiffness and superior clarity compared to substitute products.

Low EVA specialty copolymer technology – designed for specialty products requiring a particular balance of properties; these copolymers are used primarily in films with vinyl acetate (VA) co-monomer content of up to 10%.

High EVA specialty copolymer technology – For copolymers with 10 - 20% VA content to greater than 30% VA content primarily used for very flexible products, foams, and hot melt adhesives with many tailored applications.

Key benefits

Broad LDPE application and product slate

• flexibility to produce extensive grade slate

Freezer film

Lamination

Coex as seal layer

Bag in box

Extrusion coating

Meat/poultry

Shoe soles

Agricultural Film

Tubing/hoses

Carpet backing

Foaming

Stretch/wrap

Coex as tie layer

Heat lamination

Compounding

Electrical

Hot-melt adhesives

0 4 8 12 16 20 24 28 32

% VA Content

EVA

App

licat

ions

Autoclave and tubular reactor technologiesExxonMobil’s autoclave and tubular reactor technologies are characterized by their operational excellence and product purity. Additionally, process unit fouling and deposits are minimal. World class conversions up to 40% are achievable. Over the years, ExxonMobil technologies have succeeded in achieving more efficient plant operations, better mechanical integrity, low decomposition frequency, high service factors and other process improvements for licensees overall success. The following are general technical differences in the two technologies:

High-pressure autoclave technology High-pressure tubular technology

- Homopolymer LDPE (0.913 - 0.935 g/cm3 density)- EVA > 30 weight %- Multi-zone continuous stirred tank reactions- Broader molecular weight distribution for coating

and foaming- Single line capacity to 190 thousand tonnes per year

- Homopolymer LDPE (0.915 - 0.935 g/cm3 density)- EVA > 20 weight %- Higher single pass conversions- Lower operating cost- Multi-zone plug flow reaction- Single line capacity to 450 thousand tonnes per year

ExxonMobil also offers retrofit of other technologies for capacity expansion or safety, quality and reliability improvement.

LDPE services include: • Support for licensees from initial consultation through technology transfer and availability of improvements• Initial, non-confidential based meeting to discuss key features and advantages of technologies available for

license, followed by technology-specific confidentiality agreement, based on identified needs• Detailed technical proposal on identified needs and feedstocks• Technology transfer and consultation during project execution• Training, commissioning, start-up and initial operation support - Detailed procedure manuals - ExxonMobil high pressure mechanical design specifications - Operations, maintenance and engineering training - Start-up team• Technology improvement exchange, available with access to improvements to the licensed technology

About ExxonMobil Technology Licensing & CatalystsExxonMobil licenses both downstream and chemical technologies and offers proprietary catalysts for fuels, lubricants, plastics and other chemicals. The company’s extensive experience can help to provide technology solutions that contribute to cost reduction, environmental compliance, reliability, plant automation, and other areas.

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