Stock material or miscellaneous articles – Composite – Of polyamide
Patent
1974-10-24
1976-05-25
Lusignan, Michael R.
Stock material or miscellaneous articles
Composite
Of polyamide
106148, 106214, 106288Q, 162166, 162168N, 260 6, 260 173, 260 69R, 260851, 428511, 428530, 428535, B32B 902, B32B 904, D21H 128
Patent
active
039595706
ABSTRACT:
A method of manufacture from a predetermined material, especially from a natural fibrous material and/or synthetic fibrous material of an article, in particular a sheet for printing or reproduction, which combines superior qualities of brightness, opacity, thermal stability, insolubility and lightness, said method consisting of laoding said material throughout its mass or superficially, with a filler product having a base of a methylene urea precipitate with a low degree of polymerization, obtained by the reaction of urea on formaldehyde in an acid medium.
REFERENCES:
patent: 2399489 (1946-04-01), Landes
patent: 2652374 (1953-09-01), Thompson
patent: 2851424 (1958-09-01), Switzer et al.
patent: 2956898 (1960-10-01), Fleck
patent: 3018287 (1962-01-01), Fleck
patent: 3181950 (1965-05-01), Koerher et al.
Jacquelin Guy
Sangenis Solange
Baxley Charles E.
Centre Technique de l'Industrie des Papiers Cartons et Cellulose
Lusignan Michael R.
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