US4707398A — Elastic polyetherester nonwoven web

Claim 1

Independent Claim 77 words

Elastic meltblown microfibers comprising: a polyetherester material having the general formula of: ##STR3## where "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 2

Dependent Claim 77 words

Elastic meltblown microfibers comprising: a polyetherester material having the general formula of: ##STR3## where "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 3

Dependent Claim 20 words

The elastic meltblown fibers of claim 1 wherein "a" is selected from the group consisting of 2, 4 or 6.

Claim 4

Dependent Claim 12 words

The elastic meltblown fiber of claim 1 wherein said fibers are microfibers.

Claim 5

Dependent Claim 27 words

The elastic meltblown microfibers of claim 1, wherein said material has a density of from about 1.10 to about 1.18 when measured in accordance with ASTM D-792.

Claim 6

Dependent Claim 78 words

Elastic meltblown microfibers consisting essentially of: a polyetherester material having the general formula ##STR4## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 7

Dependent Claim 78 words

Elastic meltblown microfibers consisting essentially of: a polyetherester material having the general formula ##STR4## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 8

Dependent Claim 84 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR5## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 9

Dependent Claim 84 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR5## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 10

Dependent Claim 20 words

The elastic nonwoven web of claim 6, wherein "a" is selected from the group consisting of 2, 4 or 6.

Claim 11

Dependent Claim 12 words

The elastic nonwoven web of claim 6, wherein said fibers are microfibers.

Claim 12

Dependent Claim 27 words

The elastic nonwoven web of claim 6, wherein said material has a density of from about 1.10 to about 1.18 when measured in accordance with ASTM D-792.

Claim 13

Dependent Claim 86 words

An elastic nonwoven web consisting essentially of: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR6## where: "G" selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 14

Dependent Claim 86 words

An elastic nonwoven web consisting essentially of: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR6## where: "G" selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117.

Claim 15

Dependent Claim 89 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR7## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and nonelastic secondary fibers.

Claim 16

Dependent Claim 89 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR7## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and nonelastic secondary fibers.

Claim 17

Dependent Claim 20 words

The elastic nonwoven web of claim 11, wherein "a" is selected from the group consisting of 2, 4 or 6.

Claim 18

Dependent Claim 12 words

The elastic nonwoven web of claim 11, wherein said fibers are microfibers.

Claim 19

Dependent Claim 27 words

The elastic nonwoven web of claim 11, wherein said material has a density of from about 1.10 to about 1.18 when measured in accordance with ASTM D-792.

Claim 20

Dependent Claim 24 words

The elastic nonwoven web of claim 11, comprising from about 1 percent, by weight, to about 80 percent, by weight, of said secondary fibers.

Claim 21

Dependent Claim 24 words

The elastic nonwoven web of claim 11 comprising from about 1 percent, by weight, by about 50 percent, by weight, of said secondary fibers.

Claim 22

Dependent Claim 24 words

The elastic nonwoven web of claim 11 comprising from about 5 percent, by weight, to about 25 percent, by weight, of said secondary fibers.

Claim 23

Dependent Claim 41 words

The elastic nonwoven web of claim 11 comprising from about 1 percent, by weight, to about 49 percent, by weight, of said secondary fibers and from about 1 percent, by weight, to about 49 percent, by weight, of a particulate material.

Claim 24

Dependent Claim 48 words

The elastic nonwoven web of claim 11, wherein said secondary fibers are selected from the group consisting of polyester fibers, polyamide fibers, glass fibers, polyolefin fibers, cellulosic derived fibers, multi-component fibers, natural fibers, absorbent fibers, electrically conductive fibers or blends of two or more of said secondary fibers.

Claim 25

Dependent Claim 25 words

The elastic nonwoven web of claim 19, wherein said natural fibers are selected from the group consisting of cotton fibers, wool fibers or silk fibers.

Claim 26

Dependent Claim 23 words

The elastic nonwoven web of claim 19, wherein said polyolefin fibers are selected from the group consisting of polyethylene fibers or polypropylene fibers.

Claim 27

Dependent Claim 24 words

The elastic nonwoven web of claim 19, wherein said cellulosic derived fibers are selected from the group consisting of rayon fibers or wood fibers.

Claim 28

Dependent Claim 14 words

The elastic nonwoven web of claim 19, wherein said polyamide fibers are nylon fibers.

Claim 29

Dependent Claim 23 words

The elastic nonwoven web of claim 19, wherein said multi component fibers are selected from the group consisting of sheath-core or side-by-side fibers.

Claim 30

Dependent Claim 91 words

An elastic nonwoven web consisting essentially of: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR8## where: G is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and a, m and n are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and nonelastic secondary fibers.

Claim 31

Dependent Claim 91 words

An elastic nonwoven web consisting essentially of: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR8## where: G is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and a, m and n are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and nonelastic secondary fibers.

Claim 32

Dependent Claim 88 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR9## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and particulate materials.

Claim 33

Dependent Claim 88 words

An elastic nonwoven web comprising: a coherent matrix of fibers formed from a polyetherester material having the general formula of: ##STR9## where: "G" is selected from the group consisting of: poly(oxyethylene)-alpha,omega-diol poly(oxypropylene)-alpha,omega-diol poly(oxytetramethylene)-alpha,omega-diol and "a", "m" and "n" are positive integers; and wherein said material has an elongation at break of from about 600 percent to 750 percent when measured in accordance with ASTM D-638 and a melt point of from about 350° F. to about 400° F. when measured in accordance with ASTM D-2117; and particulate materials.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1990-11-16	1991-05-18	1991-11-17	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1994-11-16	1995-05-18	1995-11-17	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1998-11-16	1999-05-18	1999-11-17	$7700.00	Window Closed / Lapsed

Elastic polyetherester nonwoven web

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag