Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1985-03-11
1986-03-25
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
521 495, 524590, 525453, 525454, 525456, C08L 7504
Patent
active
045784124
ABSTRACT:
Extended 1,2-epoxy-interactive polyamine curing compositions and a method for preparing such curing compositions from a 1,2-epoxy-interactive polyamine and a cured normally solid elastomeric polyurethane wherein the 1,2-epoxy-interactive curing agent is extended by forming a solution of the cured polyurethane elastomer in the 1,2-epoxy-interactive polyamine by (a) adding comminuted cured polyurethane elastomer particles to the polyamine, (b) adding a polar organic solvent solution of cured polyurethane elastomer to the polyamine, followed by removal of the polar organic solvent or (c) adding a phenol and formaldehyde to a solution of the cured polyurethane elastomer in the 1,2-epoxy-interactive polyamine to convert the polyamine to the corresponding Mannich condensate.
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Sellstrom Kathy B.
Waddill Harold G.
Park Jack H.
Pertilla Theodore E.
Priem Kenneth R.
Texaco Inc.
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