PHENOL FORMALDEHYDE BINDER, PREPREG BASED THEREON AND PRODUCT MADE THEREOF Russian patent published in 2008 - IPC C08L61/10 

FIELD: chemistry.

SUBSTANCE: claimed invention relates to phenol formaldehyde binders and composition materials based thereon, intended for manufacturing of fire-safe parts of interior of passenger airplanes, in ship and automobile building and railway transport. Claimed are phenol formaldehyde binder, including, weight fraction: resole phenol formaldehyde resin, i.e. a highly concentrated product of condesation of phenol and paraformaldehyde 100, phenol-formaldehyde novolac 33-100, organic solvent acetone 33-130; prepreg, including, weight fraction: the said binder 20-80, glass fabric 28-48, and a product obtained by formation of the aforesaid prepreg. When using claimed phenol formaldehyde binder in combination with glass re-enforcing filler, complex of materials can be obtained i.e. prepreg with viability increased to 3 months, glass textolite and three-layer cell panel on their basis with ca. fourfold reduced heat-generation when burning.

EFFECT: invention allows creating prepreg with viability increased to 3 months, glass textolite with ca. fourfold reduced heat-generation when burning, using phenol formaldehyde binder.

3 cl, 4 ex, 4 tbl