absorbent activity: a proliferation of patents. - absorbent
Capacity-to-absorb activity: in recent months, with the proliferation of several patent infringement lawsuits, the focus has been more on who has been granted which patents over the past year. Kimberly-
Clark, Dallas, Texas, has been an active patent chaser and continues to lead this year, with 17% of the 60 diaper patents included in the survey allocated to it.
Oh, Procter & Gamble in Cincinnati still lags behind its main competitors in patent activity, and 15% of the patents have been released.
James River Non-woven fabric now part of the fiber web group, followed by 6% and Weyerhaeuser, Tacoma, WA, Chicopee, New Brunswick, NJ and Sweden each accounted for 5% of the total number of patents.
Overall, the participation of foreign enterprises decreased slightly compared to last year, with patents reviewed last year accounting for 24%.
This year, only 17% of the patents, including the survey, were issued to foreign companies.
Only one Japanese company, Uni-
Represents the charm of Ehime.
Most of the foreign patents were issued to Western European companies.
None of the Canadian companies in the survey had a patent.
At the time of reviewing the published patent portfolio, the particular "fancy" patent for diapers appears to have declined from previous years, with only one patent, particularly with respect to the super-absorbent, there are only five patents for specific elastic sensors, or patents for fixing or improving the complete system of certain parts of the diaper article.
The vast majority--
Describes some absorbent items or liners that are not distinguished according to the end use.
These can be divided into two categories.
About 56% of the water-absorbing product patents include some type of product innovation, to name just a few, whether it's elastic, moisture-proof, containment pockets, internal sweat removal devices, or tear line guides.
The other 44% describes the suction pad or item and its manufacturing method or typical structure.
Absorption pads and. . .
While most of the absorbent product patents included in this survey do not specifically describe applications such as adult control, sanitary protection, or baby diapers, most of them are very specific about what is included in the absorption pad.
Some patent literature on absorbent articles with specific attributes includes: absorbent articles with tear line guidelines (4,882,213)
Weyerhaeuser: This patent is for a water-absorbing item with two density fiber areas.
There is a weakened area within the first area that defines a line that terminates in the second area and constitutes a tear line that may tear the article.
Absorption core with dust removal layer (4,888,231)
P & G: this is an absorption layer with a top layer, a liquid and a double layer of absorption core.
The core has a shape assembly that can quickly collect and distribute the discharged body liquid and the insertion assembly that absorbs and retains the liquid.
The core has a dust removal layer with hydrophilic fibers and a base layer with hydrophilic fibers and dispersed air particles of absorbing materials distributed on the dust removal layer.
Water absorption products with hydrophobic acquisition layers (4,885,204)
, Hercules: This patent is applicable to laminated structures that absorb part of the product.
Next to the fluid-permeable topsheet is the water-repellent staplefiber with thermal bonding and from 5-
65-35% and wood fluff pulp95%.
Absorption pad of reinforced members with resistance to deformation (4,886,513), Kimberly-
Clark: this absorption pad has a liquid non-permeable baffle that fits with a closed absorber, as well as a strengthening device that shapes the device to fit the user's body.
Disposable water-absorbing clothing with elastic outer cover and overall water-absorbing insert structure (4,872,871), Kimberly-
Clark: Patented is a disposable water-absorbing garment with a breathable elastic non-woven outer cover, a water-absorbing plug-in with a liquid penetration barrier, and a liquid-permeable body side lining with an absorbing composite.
Water absorbing items with internal sweat removal device (4,880,419)
, Chicopee: there are at least two different absorption layers for this absorbent item, and there is a continuous sweating device between layers.
Thin water-absorbing items containing cement agent (4,935,022)
P & G: The patent is a one-time absorption item made of a liquid non-permeable, elongated back plate, a liquid permeable upper cover and a layered absorption core between two pieces.
The core has an upper fluid acquisition/distribution layer and a lower fluid storage layer, both of which are made of a combination of hard, twisted, curved cellulose fibers.
The particles of the gel forming the polymer gel are completely dispersed in the fiber.
Disposable diapers patent as a category, disposable diapers have also received a considerable share of patents over the past year.
Disposable diapers are granted a total of 20% patents, either with specific features described in the absorption product patent or with different structural methods.
Including representative sampling;
The rest can be found in the attached sidebar.
Re-enable diaper tablets (4,880,422)
Tredegar Industries: the patent is for refastable disposable diapers, which have adhesive tabfastener fixed on the back panel and the second re-fastening tab fixed on the back panel as well.
Disposable corrugated diapers (4,886,511)
Personal items: disposable diapers have been patented.
The diaper has an initially melted liquid non-permeable membrane and an elastic corrugated device with multiple strands of stretch elasticity.
The adsorption agent is adjacent to and less than one surface of the membrane and allows the Edge area of the membrane to surround the adsorption agent.
Fix the permeable liquid surface on the film so that the absorbing core is fixed between the two.
Then fix the elastic band on the film in the middle part of the diaper.
Liposuction napkins, especially baby diaper pads (4,883,479),Colgate-
Palmolive: This patent is applicable to absorbent items consisting of a layer of fluid non-permeable material, a layer of fluid transparent non-woven fabric and an absorption pad.
The paper is attached around the edges, and the side plate of the absorbing pad is folded under the top paper and on the central panel.
The binder on the central panel penetrates the pad of the pad and holds the side panel to the central panel.
Disposable diapers with an overall handling envelope (4,923,455)
Personal hygiene Research Association: this is a disposable diaper with a disposable envelope.
The front and back parts of the diaper are lined with end edges.
The disposal envelope has internal and external panels with space in the middle for the disposal of diapers.
The inner panel of the envelope is next to the outer liner of the diaper.
Disposable diapers (4,892,528), Uni-
Charm: disposable diapers with thick absorbent core have been patented.
The permeable top plate extends to the top of the absorbent core, while the permeable bottom plate covers most of the surface of the bottom.
Two resistant towels are adjacent, extending outward from the side part of the ore, and the outer part of the paper is attached to the back plate on the side to form a side flap.
The inside part of the paper has two ends, like the "U", facing the back plate and parallel to the top part extending along the side of the core.
Disposable diapers (4,917,696)
, Peaudouce: this disposable diaper has an absorption between the non-permeable bottom paper and the wearable lining.
A set of longitudinal adhesive coatings are distributed on the side edge part of the inside of the back plate and on the entire length.
The width of the absorbing pad is less than the back plate and the pad, at least in the crotch area, so the side edge part extends outward beyond the side edge of the pad.
Disposable diapers (4,917,693)
Barbara Terry, Red Oak, Georgia: A small disposable diaper is patented.
The diaper has a front, seat and rear with a pair of openings
At the opposite edge of the rear and the end compartment near the top corner.
There is a baby maintenance item in each compartment.
The closure is located at the edge of the rear top side wall.
There is also a fastening device on the opposite side wall of the front for connecting it to the rear so that part of the front can cover the compartment and keep the diaper assembly in place.
In the past year, with the introduction of Kimberly
The needs of Ups training pants and older children have also become the focus of additional products.
In addition, two patents have been issued for training pants or combined diapers and pants.
These are: combined diapers and training pants (4,906,243)
Oh Hamilton, Mary dravalan: This dress includes a combination of diapers and training pants.
The article has a rectangular front and back section and an hourglass shaped section in the middle.
The middle section covers the wearer's seat and crotch area to form a pocket for collecting waste.
The outer layer is permeable, the inner lining is a thin absorbent material, and the inner layer is sandwiched with a core between the outer layer and the inner lining, which is a absorbent material.
Disposable underwear (4,880,423)
Lyel Green, Roy, UT: these are disposable underpants made of a layer of composite material that includes a waterproof layer and at least a layer of water-absorbing layer cut into an hourglass shape.
On the front and back edges and at the opening of the legs there is an elastic seam on the sheet.
The material strip with hoof is sewn at the end of the elastic strip, which is adjacent to the front and upper ends of the elastic strip at the front end of the paper absorbing water.
Adult Incontinence and health protection patents last year, adult incontinence and health protection or female health are also represented in the patent literature, with female health patents accounting for 10% of the total patent survey.
5% of patents show that incontinence in adults is a little less noticeable.
Some patents in these areas include: sanitary napkins with flaps and decompression devices (4,917,697)
P & G: The patent is for a sanitary napkin that has a line that extends along the junction point of the absorbent to the far edge.
A decompression device consisting of a slit or anotch is located at the joint.
Sanitary Napkins (4,900,319)
Mark Richmond, Lincoln, NE: The patent is a slender sanitary napkin that is unified by a single
The whole layer is soft and easy to absorb.
The front and back parts of the napkin are rectangular, non-
Gradually thinner, equal width.
The forward part extends to the vaginal area, and the backward part extends to the lower hip area of the user.
The middle part is wider and there is a way to remove the napkin to the underwear.
Incontinuous clothing with elastic bags (4,886,512),Kimberly-
Clark: The patent is enclosed for a rectangular one-time suction bag.
The elastic part is centered around the long edges of the liner and back plate, with the padding width of 20-
25% of the length of the liner.
The length of the elastic area when extending from 25-
When the elasticity is relaxed between 15-15, 60% of the total length and the shortening of the total length
27% of the extended length.
Contains the same attachment method and internal clothing (4,911,702)
Weyerhaeuser: this is a kind of attachment to the continuation garment, which has a slender anchor strip adjacent to and parallel to the longitudinal edge of a waist
Surround the part and attach it permanently to the body of the garment.
One connecting end is located near the lateral edge of the waist-surround part, and the other is near the leg-surround part of the longitudinal edge.
The anchor strip simultaneously places the tension in the waist and leg area with a single connection tape.
From blood to grease. . .
As many non-woven companies are discovering, the absorbent can also be used for applications far beyond baby and adult diapers.
Patents in the fields of medical and food packaging and transportation are only a small fraction of the different types of end-use targeted by non-woven fabrics.
These patents include: water absorbent for food packaging (4,935,282)
James River: This patent is a water-absorbing plug-in for displaying and cooking food in packaging.
The insert is made of cardboard to prevent food from being dyed in contact.
The board has a central panel with an opening and a side panel each along the two opposite edges.
There is an impressive line along the edge of the central panel.
The absorption layer is connected to the plate through the adhesive and is spaced inward from the edge.
The two side panels fold inward over the absorption layer and are fixed with adhesive.
Items used to absorb cooking grease (4,923,725)
DuPont: this is one.
Grease capture and fixing items in the container made of an absorbing material bed.
The adsorption agent is composed of particles and polymer microfibers.
The container has an inlet through which the grease enters and is in contact with the first layer of the absorbent.
Suction pads for mouth making appliances (4,865,594)
Thomas Medical: this absorption pad is combined with a mouth-making appliance that collects bodily fluids secreted from the mouth-making, and is made of liquid
A non-penetration device that sticks the liner to the air hole.
The absorber is from 6-
The length is 90 cm and the periphery is 10-13 cm.
Patient bottom (4,943,286)
Kenneth Armstead, Lebanon, TN: This patent is provided for the improved reusable patient pad consisting of four layers.
The absorption layer at the top is hot-
The treated polyester rayonneedled non-woven fabric, while the second layer is non-woven polyester.
The third layer is a non-permeable synthetic material bonded to the second layer, and the fourth layer is a synthetic wool fabric, which is bonded to the third layer.
Drying and wiping pads and methods of blood (4,925,453)
, Sealed Air: The patent is a medical sponge that is capable of absorbing body fluids while protecting people using sponges from liquid contact.
The sponge has an absorption pad for absorbing the fluid with an afluid permeable cover plate on one side and a fluid permeable cover plate with a flexible plastic film on the other side.
The cover piece can be cut together to attach the liner and handle to the fluid-not-penetrate cover piece--
Opposite the absorption pad--
To protect this man.