Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1979-12-12
1981-12-01
Lindsay, Jr., Robert L.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
126450, 428333, 428403, 428407, 521 54, 521 57, 521136, B32B 516, B32B 900, B32B 1508
Patent
active
043037291
ABSTRACT:
Hollow plastic microspheres made from thermoplastic or thermosetting plastic compositions are described.
The hollow plastic microspheres can be used as filler materials in plastics, in plastic foam compositions and in concrete and asphalt compositions. The hollow plastic mircospheres can be made from low heat conductivity plastic compositions and blown with a low heat conductivity gas and used to make improved insulation materials and composites and insulating systems.
The hollow plastic microspheres can be made to contain a thin transparent or reflective metal coating deposited on the inner wall surface of the microspheres by adding to the blowing gas small dispersed metal particles and/or gases of organo metal compounds and decomposing the organo metal compounds.
The hollow plastic microspheres can also be made in the form of filamented plastic microspheres with a thin plastic filament connecting adjacent plastic microspheres.
REFERENCES:
patent: 948541 (1910-02-01), Coleman
patent: 1871792 (1932-08-01), Horsfield
patent: 3186812 (1965-06-01), Pfaender
patent: 3325341 (1967-06-01), Shannon
patent: 3607169 (1971-09-01), Coxe
patent: 3615972 (1971-10-01), Morehouse et al.
patent: 3769770 (1973-11-01), Deschamps et al.
patent: 4033324 (1977-07-01), Eckels
Materials Engineering, "Microspheres Cut Costs, Improve Properties of Plastics", pp. 58-59, 4-1975.
Chemical Engineering, "Microencapsulation", pp. 177, 178, 12/1967.
Journal of Applied Physics, "Selection and Measurement of Microspheres Laser Targets on Refraction", vol. 47, #6, 6-1976, pp. 2502-2508.
Carvellas Perry
Lindsay, Jr. Robert L.
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