Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-12-27
1987-08-11
Nielsen, Earl
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523445, 523457, 523458, 523466, 523468, 525423, 528 98, 528 99, 528220, 528361, 528373, 528407, C08L 6300, C08G 5950
Patent
active
046862501
ABSTRACT:
Curable thermosetting resin compositions comprising at least one cycloaliphatic epoxy resin having at least two 1,2-epoxy groups per molecule, and certain aromatic diamines having three aromatic rings in the molecule are disclosed. Resin compositions comprised of, for example, bis(2,3-epoxycyclopentyl)ether and 1,3-bis(4-aminophenoxy)benzene exhibit a highly desirable balance of physical and chemical properties which renders such compositions ideally suited for use in the fabrication of wet winding composites. The resin compositions prepared in accordance with the invention have unexpectedly low viscosity, high glass transition temperatures, high tensile properties and unexpectedly low water uptake. Accordingly, the resin compositions find particular application in the preparation of composites by wet winding procedures.
REFERENCES:
patent: 3368983 (1968-02-01), Tinsley et al.
patent: 4222962 (1980-09-01), Pellegrini, Jr.
patent: 4567216 (1986-01-01), Qureshi et al.
patent: 4579885 (1986-04-01), Domeier et al.
Amoco Corporation
Magidson William H.
Medhurst Ralph C.
Nielsen Earl
Schlott Richard J.
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