Fibrous shaped article having non-level surface

Details Fibrous shaped article having non-level surface Fibrous shaped article having non-level surface

1979-06-25

1980-12-30

Thibodeau, Paul J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

181284, 181290, 181294, 428215, 428218, 428219, 428286, 428298, 428332, 428337, 428340, 428921, B32B 326, B32B 502, B32B 522

Patent

active

042423988

ABSTRACT:
A fibrous shaped article having a surface with raised and depressed portions, said fibrous article consisting of a unitary laminated structure resulting from the compression molding under heat of (A) a heat compression-moldable nonwoven fibrous web and (B) a nonwoven fibrous sheet, said fibrous sheet (B) being laminated to at least one surface of said fibrous web (A); said fibrous web (A) having a compression stress, at 10% compression at the temperature of said compression molding, of at least 0.5 g/cm.sup.2 ; said nonwoven fibrous sheet (B) consisting of a continuous unitary reticulated sheet structure of an assembly of many fibers of a thermoplastic polymer, said constituent fibers having an initial modulus of not more than 5 g/denier and an elongation of at least 20% both at the temperature of said compression molding and being interconnected in a spaced-apart relationship, and said nonwoven fibrous sheet (B) having a plastic deformation ratio, at 30% elongation at the temperature of said compression molding, of at least 50% and an elongation stress, at 30% elongation at the temperature of said compression molding, of not more than 0.15 kg/cm; and said web (A) and said sheet (B) satisfying the following relation:

REFERENCES:
patent: 3050426 (1962-08-01), Stevens
patent: 4041203 (1977-08-01), Brock et al.

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