Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1981-07-02
1982-10-05
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156168, 156296, 428 91, 428398, 428904, B32B 502
Patent
active
043527051
ABSTRACT:
A process for the preparation of leatherlike sheet materials which comprises: preparing hollow composite fibers, each composed of 32 to 72 alternately arranged segments of polyester or polyamide and polystyrene which are mutually adhered side-by-side and encompass a hollow space, and which extend along the longitudinal axis of the fiber to form a tubular body, the hollow composite fiber having a denier of 1 to 20, and each segment having a denier of 0.01 to 0.5; forming a fabric using thus prepared hollow composite fibers; removing the polystyrene segments with a solvent thereof from the hollow composite fibers; and applying an elastic polymer to the fabric. The resultant leatherlike sheet materials have fine touch, excellent repulsive elasticity and excellent wrinkle resistance similar to natural suede. The hollow ratio (ratio by volume of the hollow space to the sum of the volume of the polyester or polyamide segments, the polystyrene segments and the hollow space) is 2-15%.
REFERENCES:
patent: 3705226 (1972-12-01), Okamoto et al.
patent: 3718534 (1973-02-01), Okamoto et al.
patent: 4051287 (1977-09-01), Hayashi et al.
Matsui Michikage
Minemura Norihiro
Ozaki Kiyotaka
Ball Michael W.
Teijin Limited
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