US4353945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flocked, foam-coated, water vapor permeable, bacterial barrier
Assignee: JPMorgan Chase Bank NA
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Filing: 1980-08-11
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Granted: 1982-10-12
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Expires: 2000-08-11
Abstract
Abstract A flocked, foam-coated, water vapor permeable, bacterial barrier having the appearance of fabric, and being capable of filtering bacteria is disclosed. The barrier comprises a microporous plastic film coated on at least one surface with a foamed latex polymer, and flocked fibers on the exterior surface of said foamed latex polymer.
Inventors
- 👤 Arthur J. Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:17
CPC Classifications
C; C08; C08J; C08J9/00; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/42; A61L15/425; D; D06; D06N; D06N7/00; D06N7/0097; D06N2205/00; D06N2205/02; D06N2205/023; D06N2205/04; D06N2209/00; D06N2209/12; D06N2209/121; D06N2209/16; D06N2209/1671; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249978; Y10T428/249979; Y10T428/24998; Y10T428/249981; Y10T428/27; Y10T428/273
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
60 words
A water vapor permeable bacterial barrier having the appearance of fabric, and being capable of filtering bacteria, comprising a microporous plastic film, said film being both water vapor permeable and capable of filtering bacteria, said film being coated on at least one surface with a foamed latex polymer, and flocked fibers on the exterior surface of said foamed latex polymer.
Claim 2
Dependent Claim
60 words
A water vapor permeable bacterial barrier having the appearance of fabric, and being capable of filtering bacteria, comprising a microporous plastic film, said film being both water vapor permeable and capable of filtering bacteria, said film being coated on at least one surface with a foamed latex polymer, and flocked fibers on the exterior surface of said foamed latex polymer.
Claim 3
Dependent Claim
24 words
The water vapor permeable bacterial barrier of claim 1 wherein the microporous plastic film is coated on both surfaces with a foamed latex polymer.
Claim 4
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 1 or 2 wherein the said plastic is an olefin polymer.
Claim 5
Dependent Claim
20 words
The water vapor permeable bacterial barrier of claim 3 wherein said olefin polymer is isotactic polypropylene or high density polyethylene.
Claim 6
Dependent Claim
46 words
The water vapor permeable bacterial barrier of claim 3 wherein the maximum pore size of said microporous film is about 0.2 micron, and wherein the moisture vapor transmission rate of said microporous film is at least about 100 grams per 100 square inches per 24 hours.
Claim 7
Dependent Claim
32 words
The water vapor permeable bacterial barrier of claim 5 wherein the moisture vapor transmission rate of said microporous film is at least about 250 grams per 100 square inches per 24 hours.
Claim 8
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 5 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 9
Dependent Claim
17 words
The water vapor permeable bacterial barrier of claim 3 wherein said barrier includes a fibrous reinforcing web.
Claim 10
Dependent Claim
18 words
The water vapor permeable bacterial barrier of claim 8 wherein the fibrous reinforcing web is a spunbonded web.
Claim 11
Dependent Claim
20 words
The water vapor permeable bacterial barrier of claim 8 wherein the fibrous reinforcing web is adjacent to said microporous film.
Claim 12
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 3 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 13
Dependent Claim
58 words
The water vapor permeable bacterial barrier of claim 3 wherein the microporous film weighs from about 1/4 to about 1 ounce per square yard, wherein the foamed latex polymer weighs from about 0.2 to about 0.5 ounce per square yard side, and wherein the flocking weighs from about 0.1 to about 0.4 ounce per square yard per side.
Claim 14
Dependent Claim
31 words
The water vapor permeable bacterial barrier of claim 12 wherein said barrier includes a fibrous reinforcing web that weighs from about 0.2 to about 0.6 ounce per square yard per side.
Claim 15
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 1 or 2 wherein said barrier includes a fibrous reinforcing web.
Claim 16
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 14 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 17
Dependent Claim
60 words
The water vapor permeable bacterial barrier of claim 1 or 2 wherein the microporous film weighs from about 1/4 to about 1 ounce per square yard, wherein the foamed latex polymer weighs from about 0.2 to about 0.5 ounce per square yard side, and wherein the flocking weighs from about 0.1 to about 0.4 ounce per square yard per side.
Claim 18
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 16 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 19
Dependent Claim
31 words
The water vapor permeable bacterial barrier of claim 16 wherein said barrier includes a fibrous reinforcing web that weighs from about 0.2 to about 0.6 ounce per square yard per side.
Claim 20
Dependent Claim
19 words
The water vapor permeable bacterial barrier of claim 18 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 21
Dependent Claim
21 words
The water vapor permeable bacterial barrier of claim 1 or 2 wherein the foamed latex polymer is a foamed acrylic polymer.
Claim 22
Dependent Claim
53 words
A water vapor permeable bacterial barrier capable of filtering bacteria comprising a microporous plastic film, said film being both water vapor permeable and capable of filtering bacteria, said film being coated on at least one surface with a foamed latex polymer, and flocked fibers on the exterior surface of said foamed latex polymer.
Claim 23
Dependent Claim
53 words
A water vapor permeable bacterial barrier capable of filtering bacteria comprising a microporous plastic film, said film being both water vapor permeable and capable of filtering bacteria, said film being coated on at least one surface with a foamed latex polymer, and flocked fibers on the exterior surface of said foamed latex polymer.
Claim 24
Dependent Claim
13 words
The bacterial barrier of claim 21 wherein said plastic is an olefin polymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |