Preparation of maleic rosin pentaerythritol ester with light color and high softening point
A light colour 422 resin with high softening point and reasonable acid value was synthesized directly from pine oleoresin.
The results showed that both methods of air blowing and thermal polycondensation in the presence of nitrogen raised the asphalt softening points, and increased coke yields and heptane insolubles.
testing method for vicat softening point of thermoplastics
The influence analysis of experimental condition to softening point of asphalt
It has the advantages of high softening point, high acid value, good capability of anti-oxidation and high mucosity. Polymerized rosin is good used in high-grade printing ink, adhesives and dope, etc.
Test method for softening point of petroleum bitumens
Glass was heated to its softening point and reshaped in mold under its gravity in heating furnace, then was sharp quenched by cold blast immediately.
Epoxide resins-Determination of softening point-Ring and ball method
Flat tempered safety glass is kind of high-strength safety glass obtained by heating common glass to softening point and then air cooling it abruptly.
Determination of the softening point of hot-melt adhesives Ball and ring method
testing method for softening point of bituminous materials (ring and ball method)
The lower limit of temperature at which this occurs is known as the softening point or critical temperature.
glass having a relatively low softening point.
softening point thermometre
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