US3903889A — Disposable liquid absorbent products

Claim 1

Independent Claim 121 words

IN A MULT-LAYER, DISPOSABLE ABSORBENT PRODUCT SUCH AS A DISPOSABLE DIAPER, SANITARY NAPKIN, OR THE LIKE, A LIQUID-PERVIOUS BODY CONTACTING LAYER, AN OUTER MATERIAL LAYER, SAID OUTER MATERIAL LAYER BEING CHARACTERIZED BY BEING LIQUID-IMPERVIOUS, AND A DRY LIQUID-ABSORBENT ORGANIC MATERIAL DISPOSED BETWEEN SAID BODY-CONTACTING AND OUTER LAYERS IN SUBSTANTIALLY FIXED RELATIONSHIP THEREWITH, THERE ALSO BEING A CORE OF AT LEAST ONE LAYER OF A BULKING MATERIAL DISPOSED BETWEEN SAID BODY-CONTACTING AND OUTER LAYERS, THERE BEING A FILM OF A WATER-REPELLENT ADHESIVE AGENT OVERLAYING SAID BULKING MATERIAL LAYER AT THE SIDE THEREOF REMOTE FROM SAID OUTER LAYER SAID ABSORBENT ORGANIC MATERIAL BEING OVERLAYINGLY ADHERED TO SAID FILM, THERE BEING A SECOND LIQUID-PERVIOUS FILM OF SAID ADHESIVE AGENT OVERLAYING SAID ABSORBENT ORGANIC MATERIAL

Claim 2

Dependent Claim 121 words

IN A MULT-LAYER, DISPOSABLE ABSORBENT PRODUCT SUCH AS A DISPOSABLE DIAPER, SANITARY NAPKIN, OR THE LIKE, A LIQUID-PERVIOUS BODY CONTACTING LAYER, AN OUTER MATERIAL LAYER, SAID OUTER MATERIAL LAYER BEING CHARACTERIZED BY BEING LIQUID-IMPERVIOUS, AND A DRY LIQUID-ABSORBENT ORGANIC MATERIAL DISPOSED BETWEEN SAID BODY-CONTACTING AND OUTER LAYERS IN SUBSTANTIALLY FIXED RELATIONSHIP THEREWITH, THERE ALSO BEING A CORE OF AT LEAST ONE LAYER OF A BULKING MATERIAL DISPOSED BETWEEN SAID BODY-CONTACTING AND OUTER LAYERS, THERE BEING A FILM OF A WATER-REPELLENT ADHESIVE AGENT OVERLAYING SAID BULKING MATERIAL LAYER AT THE SIDE THEREOF REMOTE FROM SAID OUTER LAYER SAID ABSORBENT ORGANIC MATERIAL BEING OVERLAYINGLY ADHERED TO SAID FILM, THERE BEING A SECOND LIQUID-PERVIOUS FILM OF SAID ADHESIVE AGENT OVERLAYING SAID ABSORBENT ORGANIC MATERIAL

Claim 3

Dependent Claim 21 words

The disposable absorbent product of claim 1 in which said layer of bulking material is a layer of fluffed cellulosic fibers.

Claim 4

Dependent Claim 21 words

The disposable absorbent product of claim 1 in which said layer of bulking material is a layer of creped paper wadding.

Claim 5

Dependent Claim 82 words

In a multi-layered disposable absorbent product such as a disposable diaper, sanitary napkin or the like comprising: a liquid-pervious body contacting layer; an outer material layer, said outer material layer being characterized by being liquid-impervious; and a dry liquid-absorbent organic material disposed between said body contacting and outer layers; the improvement which comprises a borate-release agent admixed with said absorbent organic material, said borate-release agent being in a borate compound having a solubility in water of less than about 0.1% at 25*C.

Claim 6

Dependent Claim 82 words

In a multi-layered disposable absorbent product such as a disposable diaper, sanitary napkin or the like comprising: a liquid-pervious body contacting layer; an outer material layer, said outer material layer being characterized by being liquid-impervious; and a dry liquid-absorbent organic material disposed between said body contacting and outer layers; the improvement which comprises a borate-release agent admixed with said absorbent organic material, said borate-release agent being in a borate compound having a solubility in water of less than about 0.1% at 25*C.

Claim 7

Dependent Claim 14 words

The disposable absorbent product of claim 4, wherein said borate-release agent is zinc borate.

Claim 8

Dependent Claim 46 words

The disposable absorbent product of claim 5, wherein said absorbent organic material is selected from the group consisting of water soluble proteins and polysaccharides which, upon absorption of at least 10 parts by weight of water, are characterized by the presence of sterically unhindered OH radicals.

Claim 9

Dependent Claim 17 words

The disposable absorbent product of claim 6, wherein said absorbent organic material is naturally occurring guar gum.

Claim 10

Dependent Claim 37 words

The disposable absorbent product of claim 4, in which said absorbent material additionally contains a pH stabilizer in sufficient amount to maintain the pH of the absorbent product within the range of from about 7.0 to 7.4.

Claim 11

Dependent Claim 26 words

The disposable absorbent product of claim 8, wherein said pH stabilizer is an amine, present in an amount up to about 25% by weight of absorbent.

Claim 12

Dependent Claim 34 words

The disposable absorbent product of claim 4, wherein said absorbent organic material is in particulate form, the particles thereof being sized so that at least 50% thereof are between 60 and 100 mesh Tyler.

Claim 13

Dependent Claim 25 words

The disposable absorbent product of claim 10, wherein at least 70% of said particles are of a size between about 60 and 100 mesh Tyler.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-09-08	1979-03-10	1979-09-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-09-08	1983-03-10	1983-09-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-09-08	1987-03-10	1987-09-09	$7700.00	Window Closed / Lapsed

Disposable liquid absorbent products

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