Chemical synonyms: Polyvinylformalethynal; Polyvinylformalacetal resin.

 

 

 

Appearance =Lumps up to 40 mm, from white to light yellow COLOR

 

formal 7-14 8. 06%

Ethylal 58-74 61. 47%

Acid value 0. 4max 0. 28kohmg/g

Water content 2. 0max 1. 52%

Viscosity 200-2000 650mpa. S

 

Viscosity mesured of 10%-solution in solvents chlorbenzene: 2- ethoxyethanol (1: 1). Viscosimeter Dia 5, 4 mm), sec = 20-60

 

 

Chemical Structure:

 

 

 

 

Application: the resin is used in production of insulating, polyurethane varnishes and heat-resistant phenolphormaldehydepoly-vinylacetal glues.

Wire enamels (coatings)

Magnetic Tapes

Adhesives