Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1990-02-06
1992-03-10
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523207, 523463, 523465, 525119, 525936, C08K 501, C08K 910, C08L 2308
Patent
active
050950460
ABSTRACT:
A heat curable hot melt adhesive system is disclosed. The system uses an epoxy-crosslinking ethylene polymer component, a tackifier compatible therewith and an epoxy crosslinking agent having an epoxide functionality of at least 2. The ethylene polymer component may be either an ethylene copolymer of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, or an ethylene copolymer of an ethylenically unsaturated alcohol used in combination with a dicarboxylic acid anhydride. The dicarboxylic acid anhydride and/or the epoxy can be encapsulated to inhibit premature crosslinking. The formulation is applied to a substrate surface as a hot melt at a moderate temperature, and subsequently cured by heating the adhesive composition to a higher curing temperature.
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Bleutge John C.
Exxon Chemical Patents Inc.
Kurtzman M. B.
Sellers II Robert E. L.
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