*Pendulum hardness determined according to DIN EN ISO 1522: 2006 As can be seen from the results in Table 1 use of the clear coat compositions contemplated herein leads, in the same overall drying time, to coatings with earlier hardness and improved hardness development. Specifically the coating...
The pot life was defined as the time period wherein the viscosity of the coating composition after initial mixing of all compounds is doubled.The drying time is the time until the coating is touch dry. Drying was evaluated manually. The touch dry drying state is achieved when a mark in ...
the period and the amplitude of the swings of the pendulum is measured as a function of temperature or time according to the method described by B. Hartman and G. F. Lee, Journal of Applied Polymer Science, 21 (1977) p. 1,341. The period p is related to the relative rigidity (RR...
In the alicyclic alcohol sequential addition process, the time period until the whole quantity of the 4,4′-dihydroxybicyclohexyl compound represented by Formula (3) is added to the reaction system may be suitably set in consideration typically of the operational ease and reaction rate, but is ...
ASTM Designation: D256-93a, "Standard Test Method for Determining the Pendulum Impact Resistance of Notched Specimens of Plastics", pp. 1-18. ASTM Designation: D638-94b, "Standard Test Method for Tensile Properties of Plastic", pp. 47-48. ...
(distance between supports). All test specimens are conditioned to the measurement temperature of 0° C. over a period of from 2 to 3 hours. A test specimen is then placed without delay onto the support of a pendulum impact tester in accordance with ISO 179. The distance between the ...
water being continuously split off in the process. Condensation is completed when the acid number is 0.5 mg KOH/g of solid resin. After cooling to 105° C., 390 g of Cardura E (registered trademark) are slowly added over a period of about 2 hours and the reaction mixture is kept at ...