Main Sector of relevance\IRC classification 5. Electronics, IT and Telecommunication

5.43 Polaroids for optoelectronics and protective technologies

Developers’ contact information

State Scientific Institution “The Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus”
36 Fr. Skaryna Street, Minsk BY-220141

Summary

Creation of a dichroic structure based on polyvinyl alcohol (PVA) and a dichroic agent (molecular iodine or organic dye). The method is widely used in various versions in production of all types of high-quality polaroids by “Nitto Denko” (Japan), “Polaroid Co” (USA) and “Ace Digitech” (South Korea) companies.

Description

Film polarisers have been developed for use in liquid crystal devices for information display. Polarisers are single-axis oriented polyvinyl alcohol tapes containing a polarizing agent (iodine or organic dyes), and special additives to give the material required optical and mechanical properties. Film polarisers are protected from environmental conditions with a triacetate film and have a layer of adhesive covered with an anti-adhesion polyethylene terephtalate film.

Technology type

• Material

Technical advantages and economic benefits

• mobility of manufacturing of customized import-substituting Polaroid films of various types and purposes;
• expanding the range of products for the Republic of Belarus and increasing its competitiveness;
• reducing the cost for acquisition of materials from abroad and elimination of dependence on market conditions and foreign suppliers.

Technology differentiation and uniqueness

Technical specifications, pilot and technological developments and industrial regulations, and TD sets for manufacturing of various purposes polaroid, KD sets for non-standard manufacturing equipment, which is a part of the pilot line for production of polaroids.

Context in which technology was identified

Second Harbin International Exhibition of Scientific and Technological Achievements of 2008.

Technological keywords

Film polarisers (polaroids) – passing-through, reflecting, passing-through-and-reflecting; with iodine or dichroic dyes; linear or circular, for UV of visible and near infrared spectral bands.

Development Stage

• Other:
  Pilot production implemented.

Intellectual property rights

• Patent pending
• Patent application filed
• Secret know-how
• Specific Patent Information:
  Development of the ways to manufacture optically transparent polaroids, sensitive to pressure of adhesives and sticky non-drying retro-reflective coatings for polarisers. Patents of the Republic of Belarus No. 1706, 4498, 4678, 6717, 10371.

Range of applications

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Classifier Used at the EU Innovation Relay Centres

• Electronics, IT and Telecommunication

Preferable Regions

• Europe
• Asia

Practical experience

In the State Scientific Institution “Institute of New Materials Chemistry of the National Academy of Sciences of Belarus” various types of polaroids are made on experimental lines in accordance with the agreements, in order to provide technical assistance to enterprises and institutions, as well as for the transfer of experimental samples to potential customers:

• Republican Unitary Enterprise “Semiconductor Devices Works” Scientific and Research Association “Integral”,
• Practical and Research Unitary Enterprise “Display” (Minsk), Republican Unitary Enterprise “Kriptotech”,
• CJSC “ATV-Protective Technologies”,
• OJSC “Peleng”, RUE MMZ named after S.I. Vavilov,
• Limited Responsibility Company “Spetspribor”, Limited Responsibility Company “Magnomed” (Minsk), etc.

Environmental impact

Produced on the basis of environmentally safe raw materials – polyvinyl alcohol, which is bio-degradable in the natural environment or can be burned after use without formation of hazardous gas wastes.

Type of collaboration sought

• R&D contract
• Joint venture
• License
• For sale

Terms and restrictions

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Available technical assistance

• Documentation
• Personnel
• Third party