SU721428A1 - 1,3-bis(2',4'-dioxybutyl)-5-oxymethylisocyanuric acid as adhesion-additive to glue-melts - Google Patents

Description

After filtering and distilling off the water, the light brown mass is repeatedly treated with ethyl alcohol and the sodium sulfate precipitate is filtered off. The alcohol is then distilled from the filter. The resulting CMC was redissolved in dimethylformal de to completely remove unreacted paraform. After filtration, distillation of dimethylformamide and drying in vacuo, an amorphous product of a light brown color is obtained. The product yield 69%, so pl. 75 ,.

Found,%: with 43.0; H 6.2; N 12, 2

., N30g

Calculated,%: with 42.7; H 5.9; N 12.0 The molecular weight of the product, 1,3-bis- (2, 4-dioxybutyl) -5-hydroxymethyl eocyanuric acid, determined by cryoscopy, 333.5 (calculated 335).

In the IR spectra, absorption bands were observed in the regions: 763; 1040; 1330; 1440; 3250; 3450; characteristic C 1 -a triaine cycle, primary, secondary alcohol and hydroxyl groups, respectively.

Example2. 48 g of paraform, 100 ml of dichloroethane, 25 MP (d 1.834) of sulfuric acid are placed in the reactor, the temperature of the reaction medium is raised to 50 C with intensive rewinding, and 43 g of diallyeocyanurate is gradually added. At this temperature, the reaction is continued for 4 hours. After completion of the reaction, the

the solvent is neutralized with an aqueous solution of sodium bicarbonate to pH 5. After filtration and distillation of the water, the light brown mass is treated with ethyl alcohol and the sodium sulfate precipitate is filtered off. Then ethyl alcohol is removed from the filtrate by distillation. The obtained resin is again dissolved in dimethylformamide in order to completely remove the paraform. After filtration, distillation of dimethylformamide and cyiiKV in vacuum, an amorphous product of a light brown color is isolated. The product yield is 71%, so pl. 74.5-75 s.

Found,%: C 43.0; N b, 2; N 12.2

Calculated,%: C 42.7; H 5.9; N 12.0 The molecular weight of the product, determined by cryoscopy, 333.5 (calculated 335).

Absorption bands were detected in the IR spectra of the product, cm: 763; 1040; 1330; 1440; 3250; 350; characterized by a symmetry-triazine cycle, primary, secondary alcohol and hydroxyl groups, respectively.

In tab. 1 shows the compositions of the known and proposed hot melt adhesives; in tab. 2 - indicators of their physical and physical properties.

Table.

6.5

6.5

6lit2

As can be seen from the above, the inclusion of 1,3-bis- (2,4-dioxybutyl) -5-hydroxymethyl isocyanuric acid in adhesives increases the bonding strength and reduces the softening temperature of

 the invention

1, (2, 4 -dioxbutyl) 5-hydroxymethyl isocyanuric acid

ABOUT

 he-ningngyngyngon he

ABOUT

SNgSn-bn yongon

he

as an adhesive additive to glue melts.

Sources of information taken into account in the examination

1. USSR author's certificate of application (2543316 / 23-05,

Cl, C 09 G 3/14, 1977.

2.Vatsuro K.V., Mkshchenko G.L. Named reactions in organic chemistry ,, K., Himi, 1976, p. 329.

Claims (4)

Claim 5 ! _f 1,3-bis- (2, 4-dioxibutyl) -5-ok · simethyl isocyanuric acid Oh in 10 'to the bare-n ~ _r C _r he Snyngyn I | ’ Ο ^ Ν- ^ Ο ^0H _Mr. CH-CH ^ YA YNgON HE 15 as an adhesive additive to hot melt adhesives.