Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-08-21
1993-04-20
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156 731, 156290, 1563066, 1563082, 428284, 428286, 428287, 428296, 428297, 428298, 428326, 428421, 428422, 428913, 428171, 428172, B32B 2714
Patent
active
052041654
ABSTRACT:
A nonwoven laminate, having a barrier property, is made of at least one thermoplastic fiber layer bonded with a wet-laid fabric layer, made of a uniform distribution of cellulose fibers, polymeric fibers, and a binder, which is treated with a water-repellent finish. Alternatively, the wet-laid fabric layer can be made without the addition of any binders to form a tissue-type core fabric layer. In a preferred form, spunbond polyester fiber layers are ultrasonically bonded on each side of a wet-laid barrier fabric made of about 20% eucalyptus pulp, 45% staple polyester fibers of 1.5 denier, and 35% polyester fibers of finer denier of about 0.6 denier, which is bonded with an acrylic latex binder and treated with a water-repellent finish that includes a fluorocarbon compound. The resulting laminate has a desired drapability and soft hand. Combined with the low unit cost, air permeability and water-resistant barrier properties, the wet-laid barrier fabrics of the invention are suitable for industrial, hospital, and other protective or covering uses.
REFERENCES:
patent: 3327708 (1967-06-01), Sokolowski
patent: 3485705 (1969-12-01), Harmon
patent: 3649428 (1973-03-01), Hughes
patent: 3695985 (1972-10-01), Brock et al.
patent: 3795571 (1974-03-01), Prentice
patent: 3837995 (1974-09-01), Floden
patent: 4012281 (1977-03-01), Mayer et al.
patent: 4041203 (1977-08-01), Brock et al.
patent: 4196245 (1980-04-01), Kitson et al.
patent: 4287251 (1981-09-01), King et al.
patent: 4302496 (1981-11-01), Donovan
patent: 4331730 (1982-05-01), Sorenson
patent: 4374888 (1983-02-01), Bornslaeger
patent: 4425126 (1984-01-01), Butterworth et al.
patent: 4521477 (1985-06-01), Kiss
patent: 4555811 (1985-12-01), Shimalla
patent: 4565736 (1986-01-01), Stein et al.
patent: 4587154 (1986-05-01), Hotchkiss et al.
patent: 4605454 (1986-08-01), Sayovitz et al.
patent: 4657804 (1987-04-01), Mays et al.
patent: 4659614 (1987-04-01), Vitale
patent: 4684570 (1987-08-01), Malaney
patent: 4692368 (1987-09-01), Taylor et al.
patent: 4705712 (1987-11-01), Cashaw et al.
patent: 4775579 (1988-10-01), Hagy et al.
patent: 4784892 (1988-11-01), Storey et al.
patent: 4844965 (1989-07-01), Fryman
patent: 4863785 (1989-09-01), Berman et al.
patent: 5035943 (1991-07-01), Kinlow et al.
Bell James J.
International Paper Company
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