Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1978-01-25
1981-08-04
Woo, Jay H.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
264175, 264211, 264293, 264349, 428326, C08L 100, B29D 714
Patent
active
042821207
ABSTRACT:
Method of producing a stratiform material, wherein 35-45 parts by weight of solvents for polyvinylacetate (PVA) homopolymer in the form of flakes or pearls are stirred with 10-15 parts of PVA and 2-5 parts by weight of oil, while separately mixing 25-30% by weight of wood powder having a granulometry in the range of 50-150 microns and mineral fillers in an amount of 10-20% by weight, then intermixing the liquid and powdery phases to obtain a homogeneous mixture which is passed through calendering rollers, the last pair of which produces an embossing on at least one of the two surfaces, the layer being reduced to a thickness in the range of 0.2-2.0 millimeters.
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patent: 4112145 (1978-09-01), Cisterni
S.U.B. Societa Utilizzazione Brevetti S.R.L.
Woo Jay H.
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