Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-04-18
1998-10-20
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525480, 525508, 528 89, 528 93, 528102, 528112, C08G 5942, C08G 5962
Patent
active
058247521
ABSTRACT:
The invention provides for a process for the preparation of an advanced resin by reaction of a compound having on average more than one epoxy group per molecule and a compound having on average one or more hydroxyl group or carboxyl group per molecule in the presence of a catalyst at elevated temperature, the process comprising (1) mixing the epoxy compound, the hydroxyl compound or the carboxyl compound and the catalyst, and (2) transferring the mixture as a feedstream to a surface exposed to an elevated temperature sufficient to produce an advanced epoxy resin which is at least intermittently moving with respect to the feedstream. In a preferred embodiment an endless conveyer belt with additional heating means and optional cooling means are used.
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Beerepoot Johannes Petrus JozeF
Blom Johannes Jozias
De Jong Feike
Raas Paulus Egidius
Sjardijn Willem
Sellers Robert E.
Shell Oil Company
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