Societe Anonyme: Aussedat-rey

Aussedat-rey

International Paper Company

Claude Raymond Riou

Andre G Honnorat

Jean F Fayard

Fernand Mora

Louis Raux

Georges M Gidon

This invention relates to bleached mechanical paper pulps, based on fibrillated fibers of cellulose, hemicelluloses and lignin, containing calcium carbonate, in which calcium carbonate is crystallized and at least partly covers the fibrillated fibers of cellulose, hemicelluloses and lignin to which the calcium carbonate is mechanically bonded, papers made from these pulps and their preparation process.

Bleached, mechanical paper pulp and the production method therefor

This invention relates to bleached mechanical paper pulps, based on fibrillated fibres of cellulose, hemicelluloses and lignin, containing calcium carbonate, in which calcium carbonate is crystallised and at least partly covers the fibrillated fibres of cellulose, hemicelluloses and lignin to which the calcium carbonate is mechanically bonded, papers made from these pulps and their preparation process.

This invention relates to a process for manufacturing a flat, fibrous, supple substrate, difficult to tear, said process consisting in:

Process for manufacturing a flat, fibrous, supple substrate, difficult

Coating and impregnation of bases. The invention relates to a composition for impregnating a base, more particularly a paper or textile base, said composition being intended to provide said base with barriers, especially at least hydrophobic barriers, and including glyoxal, the composition also being intended to provide oleophobic and solvanophobic properties simultaneously and comprising the following, by weight of dry product relative to the base:

Composition for rendering a paper or textile base resistant to water,

This invention relates to the paper-making domain and especially to a forgery-proof safety paper, which includes on its surface and/or in its mass, at least one compound responding to formula: ##STR1## in which: R.sub.1, R.sub.2, R.sub.3 may be either H, OH, or OR,

Forgery-proof safety paper

This invention relates to paper-making and in particular to non-fluorescent forgery-proof safety paper which is characterized in that it comprises, on its surface and/or in its mass, a salt of cobalt(II) or (III), at least partially soluble in aqueous phase.

Non-fluorescent forgery-proof safety paper and document obtained

A forgery proof safety paper comprises, on its surface and/or in the body of a paper substrate, at least one compound of the formula ##STR1## wherein R.sub.1 is H or OH, and R.sub.2 is H, COOH, CHO, COR, COOR or alkyl, R being a substituted or unsubstituted, linear, cyclic or aromatic hydrocarbon chain.

Forgery-proof security paper and aqueous or organic composition

Treated base material for recording. The recording sheet for ink-jet printing according to the invention includes, in its coating, a polyhydroxylic polymeric binder with the hydroxyl groups in the cis position, which has been gelled or coagulated with boric acid and/or its derivatives during coating, and a filler with a high absorption capacity. Application to recording paper for ink-jet printing.

Recording sheet for ink-jet printing and process for its preparation

This invention relates to an unfalsifiable safety paper comprising on its surface and/or in its mass, at least one compound responding to formula: ##STR1## in which: R corresponds to hydrogen, to an alkyl group of C.sub.1 to C.sub.8, substituted or not, to a non-substituted, N-substituted or N,N-substituted amine group, to NO.sub.2, to a halogen;

Unfalsifiable safety paper

The invention relates to novel thermographic recording compositions. Novel color developers for thermographic compositions consist of the compounds of the formula: ##STR1## The invention is useful for recording supports for data generally, for example, computers, medical, etc.

Thermographic recording compositions

The present invention relates to thermographic record compositions and to novel color developers for thermographic compositions consisting of:

Growing community of inventors

Menthon St. Bernard, France

Claude Raymond Riou