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 Title: |
US5804011:
Process of making a two-way stretchable fabric laminate and articles made from it
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Dutta, Anit; Wilmington, DE
Daniel, Edward J.; Landenberg, PA
Willmann, Robert C.; Port Deposit, MD
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| Assignee: |
W. L. Gore & Associates, Inc., Newark, DE
other patents from W. L. GORE (774265) (approx. 617)
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| Published / Filed: |
1998-09-08
/ 1996-06-28
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| Application Number: |
US1996000672801
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| IPC Code: |
Advanced:
A41D 31/02;
B32B 5/04;
B32B 7/14;
B32B 27/12;
B32B 37/14;
Core:
A41D 31/00;
more...
IPC-7:
B32B 31/00;
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| ECLA Code: |
B32B37/14B; A41D31/02; B32B27/12;
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| U.S. Class: |
Current:
156/160;
156/163;
156/229;
156/290;
156/291;
Original:
156/160;
156/163;
156/229;
156/290;
156/291;
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| Field of Search: |
156/160,163,229,290,291
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| Priority Number: |
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| Abstract: |
The invention is a stretchable layered fabric laminate which is air impermeable and waterproof while being permeable to water vapor. The stretchable fabric laminate includes a stretchable composite material layer consisting of a hydrophobic protective layer of a porous polymeric material on each side of a layer of hydrophilic water-vapor-permeable synthetic polymer. The composite material layer is laminated to at least one layer of stretchable fabric. The stretchable layered fabric laminate has excellent stretch and recovery properties in both machine and transverse directions, and is useful for the manufacture of form-fitting articles of protective clothing and other end uses.
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| Attorney, Agent or Firm: |
Samuels, Gary A. ;
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| Primary / Asst. Examiners: |
Choi, Kathleen;
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This application is a division of application Ser. No. 08/248,999, filed May 25, 1994, now U.S. Pat. No. 5,529,830.
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| Designated Country: |
AT BB BG BR BY CH CN CZ DK ES FI HU KP KR KZ LK LU LV MG MN MW NL NO NZ PL PT RO RU SD SK UA DE FR GB IT SE
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| Family: |
Show 8 known family members
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First Claim:
Show all 3 claims |
We claim:
1. A process for making a stretchable layered fabric laminate stretchable in both the machine and transverse directions comprising the steps of:
- (a) forming a composite of two microporous polymeric outer layers capable of elongating at least 50% of the original length in a transverse direction;
- said layers joined by an intermediate layer of a non-porous water-vapor-permeable polymer partially impregnated into the micropores of the polymeric layers;
- (b) stretching an elastic fabric in the machine direction so as to reduce its width to a width of 90 percent or less of its initial relaxed width,
- said fabric having elastic properties in at least the machine direction;
- (c) maintaining said fabric in the stretched state while adhesively laminating said composite to said stretched fabric with a non-continuous pattern of adhesive,
- (d) reducing the force stretching said fabric, thereby allowing said fabric to elastically retract to a relaxed state whereby in the machine direction said composite layer is bunched and folded as said fabric elastically recovers from being stretched.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 33 U.S. patent(s) that reference this one
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| U.S. References: |
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All U.S. references
| Forward references (33)
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Backward references (19)
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Citation Link
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PDF |
Patent |
Pub.Date |
Inventor |
Assignee |
Title |
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US3953566 |
1976-04 |
Gore |
W. L. Gore & Associates, Inc. |
Process for producing porous products
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US4187390 |
1980-02 |
Gore |
W. L. Gore & Associates, Inc. |
Porous products and process therefor
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US4194041 |
1980-03 |
Gore et al. |
W. L. Gore & Associates, Inc. |
Waterproof laminate
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US4230838 |
1980-10 |
Foy et al. |
ATO Chimie |
Mouldable and extrudable polyether-ester-amide block copolymers
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US4443511 |
1984-04 |
Worden et al. |
W. L. Gore & Associates, Inc. |
Elastomeric waterproof laminate
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US4493870 |
1985-01 |
Vrouenraets et al. |
Akzo nv |
Flexible layered product
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US4532316 |
1985-07 |
Henn |
W. L. Gore & Assoc., Inc. |
Phase separating polyurethane prepolymers and elastomers prepared by reacting a polyol having a molecular weight of 600-3500 and isocyanate and a low molecular weight chain extender in which the ratios of reactants have a limited range
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US4539255 |
1985-09 |
Sato et al. |
Kanebo Ltd. |
Moisture-permeable waterproof fabric
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US4692369 |
1987-09 |
Nomi |
Japan Gore-Tex, Inc. |
Water-vapor-permeable, waterproof, highly elastic films
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US4725481 |
1988-02 |
Ostapchenko |
E. I. Du Pont de Nemours and Company |
Vapor-permeable, waterproof bicomponent structure
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US4761324 |
1988-08 |
Rautenberg et al. |
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Elastic, laminated, water-proof, moisture-permeable fabric
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US4935287 |
1990-06 |
Johnson et al. |
Minnesota Mining and Manufacturing Company |
Stretchable laminate constructions
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US4946736 |
1990-08 |
Sassa |
W. L. Gore & Associates, Inc. |
Protective electromagnetically transparent window
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US5026591 |
1991-06 |
Henn et al. |
W. L. Gore & Associates, Inc. |
Coated products and methods for making
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US5036551 |
1991-08 |
Dailey et al. |
W. L. Gore & Associates, Inc. |
Elastomeric composite fabric
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US5209969 |
1993-05 |
Crowther |
W. L. Gore & Associates, Inc. |
Carbamate/urethane composition and textile lamination process
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US5244716 |
1993-09 |
Thornton et al. |
Porvair PLC |
Stretchable fabrics and articles made therefrom
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US5376198 |
1994-12 |
Fahrenkrug et al. |
Kimberly-Clark Corporation |
Method for making a stretchable absorbent article
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US5529830 |
1996-06 |
Dutta et al. |
W. L. Gore & Associates, Inc. |
Two-way stretchable fabric laminate and articles made from it
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