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Title: |
US5529830:
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, Anita; 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: |
1996-06-25
/ 1994-05-25

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Application Number: |
US1994000248999

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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 27/12;

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ECLA Code: |
B32B37/14B; A41D31/02; B32B27/12;

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U.S. Class: |
Current:
428/176;
428/152;
428/182;
428/198;
428/306.6;
428/314.2;
428/315.9;
428/316.6;
428/317.1;
428/319.7;
442/182;
Original:
428/176;
428/182;
428/198;
428/246;
428/152;
428/230;
428/252;
428/286;
428/306.6;
428/314.2;
428/315.9;
428/316.6;
428/317.1;
428/319.7;

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Field of Search: |
428/141,152,163,166,167,176,182,230,246,286,289,304.4,306.6,314.2,315.5,315.9,316.6,317.1,317.9,196,198,252,319.7

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Priority Number: |
| 1994-05-25 |
US1994000248999 |

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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: |
Mc Camish, Marion E.; Choi, Kathleen L.

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INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report

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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 7 known family members

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First Claim:
Show all 18 claims |
We claim:
1. A stretchable layered fabric laminate stretchable in both the machine and transverse directions comprising:
- (a) a composite layer stretchable in the transverse direction comprising two layers of a microporous hydrophobic polymeric membrane material that can be elongated at least 50% in the transverse direction, and which is partially impregnated with and bonded together by a continuous non-porous layer of an elastomeric hydrophilic water-vapor permeable polymer to form said composite layer having a non-porous internal region and two microporous surfaces;
- (b) said composite layer being laminated on at least one side to a layer of an elastic fabric by an adhesive distributed in a non-continuous pattern such that the composite layer is bunched together in folds in the machine direction and is substantially planar in the transverse direction;
- said fabric laminate being capable of stretching at least 10% and recovering at least 80% of the amount stretched when the stretching force is removed in both machine and transverse directions; and
- said fabric laminate being air and liquid water impermeable and being water vapor permeable to the extent of having a water vapor transmission rate of at least 2000 gm/m2 /24 hrs.

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Background / Summary: |
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Drawing Descriptions: |
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Description: |
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Forward References: |
Show 49 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 (49)
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Backward references (16)
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Citation Link

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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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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 |
1993-06 |
Thornton et al. |
Porvair PLC |
Stretchable fabrics and articles made therefrom
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