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
