Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1996-02-08
1998-02-17
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524376, 524500, 524501, 524522, 524523, 521 48, C08K 506, C08J 1100
Patent
active
057192227
ABSTRACT:
A water-based synthetic adhesive is composed of the thermosetting acrylic resin and the thermoplastic resin, which are bonded together by an interfacial agent in the presence of water. The adhesive is further composed of an acidic swelling agent capable of causing the adhesive to form a number of air-permeable pores when the adhesive is subjected to heat. The adhesive is still further composed of a consistency promoting agent to facilitate the application of the adhesive. A method for making the water-based synthetic adhesive includes a step in which a mixture containing water and the thermoplastic resin powder is formed. An interfacial agent and the thermosetting acrylic resin are added to the mixture before the mixture is stirred slowly at a predetermined temperature under at least one atmospheric pressure for a predetermined time so that the mixture becomes a paste, which is then subjected to a high-speed grinding at a low temperature for a predetermined period.
REFERENCES:
patent: 4476271 (1984-10-01), Kano et al.
patent: 4943612 (1990-07-01), Morite et al.
patent: 5196468 (1993-03-01), Schwerzel et al.
patent: 5548016 (1996-08-01), Provenzola
Asinovsky Olga
Schofer Joseph L.
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