White blackout fabric

Details White blackout fabric White blackout fabric

1990-06-22

1991-05-28

Kendell, Lorraine T.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428221, 428224, 428372, 428373, 428374, 428379, 428389, 428395, B32B 516, D02G 300

Patent

active

050194453

ABSTRACT:
A white blackout fiber comprising a core, a sheath, said sheath surrounding said core, said core including a light blocking substance therein that substantially prevents the transmission of light therethrough, the light blocking substance being in an amount equal to 0.005-0.01 weight % of the core, a whitening agent in the core in an amount equal to 3-10% of the weight of the core, and a whitening agent in the sheath in an amount equal to approximately 0.0-4.0 weight % of the sheath.

REFERENCES:
patent: 2932079 (1960-04-01), Dietzsch et al.
patent: 3531368 (1970-09-01), Okamoto et al.
patent: 3551279 (1970-12-01), Ando et al.
patent: 3616183 (1971-10-01), Brayford et al.
patent: 3718534 (1973-02-01), Okamoto et al.
patent: 3803534 (1973-02-01), Hull
patent: 4129677 (1978-12-01), Boe
patent: 4207376 (1980-06-01), Nagayasu et al.
patent: 4756969 (1988-07-01), Takeda

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