Fibrets suitable for paper opacification

Details Fibrets suitable for paper opacification Fibrets suitable for paper opacification

1982-09-13

1984-07-17

Chin, Peter

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428372, 428400, 428401, 162146, 1621571, 1621574, 1621575, 1621576, D02G 300

Patent

active

044606478

ABSTRACT:
A process is disclosed for the preparation of highly pigmented fibrets, the product produced thereby and paper products containing the highly pigmented fibret. The fibret has a surface area of from 15 to 30 square meters per gram and comprises a polymeric host having an index of refraction of not more than 1.5 containing from 40 to 75 percent by weight of an inorganic light scattering pigment having an index of refraction of from 1.5 to 3.0. The fibrets are found to impart paper opacification to the same degree as wholly inorganic opacified paper products without many of the problems commonly associated with such prior art products.

REFERENCES:
patent: 2999788 (1961-09-01), Morgan
patent: 3342921 (1967-09-01), Brundige et al.
patent: 3597312 (1971-08-01), Kohne et al.
patent: 3775353 (1973-11-01), Kohne et al.
patent: 4040856 (1977-08-01), Litzinger

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