Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1992-12-09
1994-04-26
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
12820612, 156 731, 156167, 156290, 1563082, 428171, 428172, 428284, 428286, 428296, 428297, 428298, 428903, B32B 2714
Patent
active
053065450
ABSTRACT:
The invention provides a melt-blown non-woven fabric obtained by melt-blowing an ethylene-.alpha.-olefin copolymer having a density of smaller than 0.900 g/cm.sup.3 and a crystallinity of from 5 to 40% or by melt-blowing a resin composition which chiefly comprises said copolymer, a laminated non-woven fabric obtained by laminating as a unitary structure a dry-type non-woven fabric on the melt-blown fabric that is obtained by melt-blowing said copolymer or the resin composition which chiefly comprises said copolymer, and a cataplasm which comprises the non-woven fabric obtained by melt-blowing said copolymer or said resin composition which chiefly comprises said copolymer, a dry-type non-woven fabric laminated on said melt-blown non-woven fabric, and a medicine layer applied onto said dry-type non-woven fabric. The non-woven fabric or the laminated non-woven fabric has excellent elastic property, i.e., excellent elasticity under the two-dimensional condition, and exhibit excellent fitness to the curved portions and to the stretched or contracted portions. The invention further provides a non-woven fabric obtained by melt-blowing a resin composition which contains 98 to 40% by weight of a polypropylene and 2 to 60% by weight of an ethylene-.alpha.-olefin copolymer having a density of smaller than 0.900 g/cm.sup.3 and a crystallinity of from 5 to 40%, and a laminated non-woven fabric material using the above non-woven fabric, featuring excellent softness and heat-adhesiveness at low temperatures as well as easy heat-working such as heat-embossing.
REFERENCES:
patent: 4041203 (1977-08-01), Brock
patent: 5188885 (1993-02-01), Timmons et al.
Masumoto Kazuhiro
Saeki Akimi
Shimizu Masaki
Shirayanagi Ryutaro
Bell James J.
Mitsui Petrochemical Industries Ltd.
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