Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-02-06
1995-10-31
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...
525426, 525434, 525437, 525438, 525445, 525463, 525467, 525523, 525535, C08L 6302, C08L 6702, C08L 7706, C08L 8106
Patent
active
054629969
ABSTRACT:
A thermosettable resin composition is prepared by admixing a liquid mixture of thermosettable resins such as a polyepoxide and amorphous thermoplastic polymer particles such as a polyetherimide to form a homogeneous cured resin composition. The particles have an average diameter of from 0.5-50 micrometers, a surface area of at least 1.0 m.sup.2 /g, a dissolution temperature of at least 50.degree. C., and are essentially insoluble in the thermosettable resin at temperatures of up to 15.degree. C. below the dissolution temperature but are completely dissolved at a temperature of at least 20.degree. C. below the cure temperature of the resin.
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Boden John T.
Kaufer Daniel M.
Portelli Gene B.
Schultz William J.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sellers Robert E.
Sherman Lorraine R.
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