Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1990-10-31
1991-06-04
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 64, 521 61, C08J 928
Patent
active
050214624
ABSTRACT:
A porous polymeric material has cell sizes within the range 100 to 0.5 .mu.m and total pore volume with respect to the overall volume of the material in the range 75 to 98% and includes cross-linked polycondensation polymeric material. The material can be made from a high internal phase emulsion in which the cross-linked polycondensation polymer is formed in the continuous phase. The materials are preferably open interconnected cellular structures. They can be made of a wide range of polycondensation materials. The materials are thus highly porous and light weight and have a range of properties depending primarily on their constituent polycondensation materials.
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2464 Cellular Polymers, vol. 2 (1983) No. 4, Great Yarmouth, GB pp. 295-298-Letters to the Editor, "Micro/Macrocellular Concept for Foamed Polymers", A Gill, Diamond Shamrock.
Elmes Alfred R.
Hammond Kevin
Sherrington David C.
Foelak Morton
Unilever Patent Holdings B.V.
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