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US3705645A Expired / Lapsed US ⏱️ 0.0 years remaining

Inflatable flexible container and fabric for making it

Assignee: Rohm and Haas Co
•
Filing: 1971-04-30
•
Granted: 1972-12-12
•
Expires: 1991-04-30
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Abstract

Abstract Textile fabrics are formed into containers, envelopes, or bags which are adapted to be partially or completely filled with a fluid, e.g. water or other liquid or to be inflated with air or other gas. A coating of an acrylic addition polymer is provided on one face of the flexible fabric and covered with a layer of fibrous material. The fiber-coated face becomes the interior wall of the container and prevents adhesion of adjacent internal walls when the container is in collapsed condition. This permits storage of the container in collapsed condition over long periods of time and at temperatures ranging from -20* to 200*F. without developing cracks in the coating or adhesion of the internal surfaces and thereby interfering with the inflation of the container. Such containers are useful as air-mattresses, waterfilled mattresses, sleeping bags, pillows, lifebelts, lifeboats, air-filled or water-filled chairs, ottomans, etc. They may be stored in automobiles or other vehicles for automatic inflation upon collision impact to protect passengers therein from injury by cushioning effect.

Inventors

  • 👤 Patricia F Konen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:44
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/235; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1334; Y10T428/23; Y10T428/231; Y10T428/31504; Y10T428/31511; Y10T428/31725; Y10T428/31739; Y10T428/31786; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31935; Y10T428/31942

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 80 words
An envelope, enclosing a fluid therein or adapted to be filled with fluid, having a wall formed of a textile fabric coated at least on its internal surface with a continuous film of an acrylic polymer having an apparent second order transition temperature of -20*F. or lower when determined at a modulus of rigidity of 300 kg./cm.2 whereby the coated fabric retains flexibility at least down to -20*F. and is resistant to cracking when flexed at least down to -20*F.
Claim 2
Dependent Claim 80 words
An envelope, enclosing a fluid therein or adapted to be filled with fluid, having a wall formed of a textile fabric coated at least on its internal surface with a continuous film of an acrylic polymer having an apparent second order transition temperature of -20*F. or lower when determined at a modulus of rigidity of 300 kg./cm.2 whereby the coated fabric retains flexibility at least down to -20*F. and is resistant to cracking when flexed at least down to -20*F.
Claim 3
Dependent Claim 14 words
An envelope according to claim 1 which is at least partially filled with water.
Claim 4
Dependent Claim 15 words
An envelope according to claim 1 which is filled with air or other gaseous fluid.
Claim 5
Dependent Claim 19 words
An envelope according to claim 1 wherein the internal acrylic coating carries adhered thereto a layer of fibrous material.
Claim 6
Dependent Claim 69 words
An envelope according to claim 4 having a tube communicating the interior with the exterior of the envelope, the envelope being readily fillable with liquid even after storage in collapsed condition wherein juxtaposed internal surfaces of the envelope walls have an extensive area of contact, the juxtaposed fiber-faced internal surfaces being resistant to blocking when pressed together under 0.7 lbs. per sq. in. pressure for 7 days at 200*F.
Claim 7
Dependent Claim 20 words
An envelope according to claim 1 in which the polymer of the continuous film is a polymer of butyl acrylate.
Claim 8
Dependent Claim 27 words
An envelope according to claim 5 in which the polymer of the continuous film is the heat-cured product of a self-reactive or self-curing copolymer of butyl acrylate.
Claim 9
Dependent Claim 63 words
An envelope according to claim 7 in which the polymer of the continuous film is the heat-cured product of a copolymer of butyl acrylate containing about 0.2 percent by weight of units containing glycidyl groups or N-methylol- or N-alkoxymethyl-substituted carboxylamide, ureido, or amino groups, the nitrogen of the amino groups being attached directly to a carbon atom in a 1, 3, 5-triazine ring.
Claim 10
Dependent Claim 14 words
An envelope according to claim 8 in which the fabric is a nylon fabric.
Claim 11
Dependent Claim 50 words
An envelope according to claim 8 in which the polymer of the continuous film is the heat-cured product of a mixture of (a) a poly(vic-epoxy), an aminoplast, or a phenoplast resin-forming condensate and (b) a copolymer of butyl acrylate with a monomer containing a group that is co-reactive with (a).

References Cited (Backward Citations)

US2719832A Cited
US3012911A Cited
US3616146A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-12-12 1976-06-12 1976-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-12-12 1980-06-12 1980-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-12-12 1984-06-12 1984-12-12 $7700.00 Window Closed / Lapsed

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