Fine fiber webs with improved physical properties

Details Fine fiber webs with improved physical properties Fine fiber webs with improved physical properties

1990-05-04

1993-04-20

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

156 624, 156 628, 1563082, 2642108, 26421112, 2642112, 428288, 428296, 428302, 428171, 428172, D04H 303, D04H 305, D04H 316

Patent

active

052041743

ABSTRACT:
There is disclosed a nonwoven web consisting of highly drawn and unoriented thermoplastic fibers formed from a blend of propylene polymer and butylene polymer, wherein the blend by weight is from 90% to 50% polypropylene and from 10% to 50% polybutylene. The blend can be a blend of a homopolymer of polypropylene and a homopolymer of polybutylene; a homopolymer of polypropylene and a copolymer of butylene; a copolymer of propylene and a homopolymer of polybutylene; and a copolymer of propylene and a copolymer of butylene. In addition ternary blends (homopolymers of polypropylene, copolymers of propylene and butylene, terpolymers (propylene, 1-butene, and ethylene), and blends of terpolymers with polypropylene are useful. The resulting nonwoven webs have enhanced toughness, tear resistance, drape, and conformability.

REFERENCES:
patent: D264512 (1982-05-01), Rogers
patent: 3444117 (1969-05-01), Higgins et al.
patent: 3841953 (1974-10-01), Lohkamp et al.
patent: 3849241 (1974-11-01), Butin et al.
patent: 3959421 (1976-05-01), Weber et al.
patent: 4100324 (1978-07-01), Anderson et al.
patent: 4197375 (1980-04-01), Fox
patent: 4211819 (1990-07-01), Kunimune et al.
patent: 4288484 (1981-09-01), Norota et al.
patent: 4359561 (1982-01-01), Fraser et al.
patent: 4363904 (1982-12-01), Fraser et al.
patent: 4395519 (1983-07-01), Minami et al.
patent: 4673711 (1987-06-01), Sharps, Jr. et al.
patent: 4678834 (1987-07-01), Boivin et al.
patent: 4761450 (1988-08-01), Lakshmanan et al.
patent: 4774277 (1988-09-01), Janac et al.
patent: 4797318 (1989-01-01), Brooker et al.
patent: 4826909 (1989-05-01), Lakshmanan et al.
patent: 4830907 (1989-05-01), Sawyer et al.
patent: 4943615 (1990-07-01), Yamawaki
patent: 5073436 (1991-12-01), Antonacci et al.
Polymer Chemistry, Chapman and Hall, Ltd. (London), 1973, p. 58.
NRL Report 4364, Manufacture of Superfine Organic Fibers, May 25, 1954.
NRL Report 5265, An Improved Device for the Formation of Superfine, Thermoplastic Fibers, Feb. 11, 1959.

Affiliated with

Also associated with

Rating

Fine fiber webs with improved physical properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fine fiber webs with improved physical properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine fiber webs with improved physical properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1525027