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 Title: |
US5650225:
Three-dimensional, seamless waterproof breathable flexible composite material
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Dutta, Anit; Wilmington, DE
Henn, Robert Lyon; Wilmington, DE
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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: |
1997-07-22
/ 1996-08-08
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| Application Number: |
US1996000694223
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| IPC Code: |
Advanced:
B29C 41/00;
B29C 41/14;
B29C 41/22;
B32B 27/40;
D06N 3/14;
D06N 3/18;
IPC-7:
B32B 27/06;
B32B 27/12;
B32B 27/40;
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| ECLA Code: |
B29C41/00B; B29C41/22; D06N3/14; D06N3/14E; D06N3/18; L29C41/14; L29K75/00; L29K105/08B; L29L31/48D6; L29L31/48E;
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| U.S. Class: |
Current:
428/318.4;
002/167;
002/168;
428/035.7;
428/036.1;
428/036.5;
428/315.5;
428/315.9;
428/318.6;
428/319.7;
442/071;
442/076;
442/089;
Original:
428/318.4;
428/315.5;
428/315.9;
428/318.6;
428/319.7;
428/035.7;
428/036.1;
428/036.5;
002/167;
002/168;
442/071;
442/076;
442/089;
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| Field of Search: |
428/246,286,315.5,315.9,318.4,318.6,319.7,35.7,36.1,36.5
002/167,168
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| Priority Number: |
| 1996-08-08 |
US1996000694223 |
| 1995-03-14 |
US1995000404217 |
| 1994-05-06 |
US1994000239085 |
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| Abstract: |
Waterproof, breathable, flexible, seamless shaped articles, such as gloves or socks, are described which are made of a flexible layered composite comprising: (a) a microporous thermoplastic polyester polyurethane or polyether polyurethane that is water vapor permeable, and (b) a nonporous copolymer that is waterproof but water vapor permeable which provides improved waterproofness to the microporous polymer layer.
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| Attorney, Agent or Firm: |
Samuels, Esquire, Gary A. ;
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| Primary / Asst. Examiners: |
Choi, Kathleen;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Related Applications: |
| Application Number |
Filed |
Patent |
Pub. Date |
Title |
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| US1995000404217 | 1995-03-14 |
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| US1994000239085 | 1994-05-06 |
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| Parent Case: |
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation of application Ser. No. 08/404,217 filed Mar. 14, 1995 now abandoned, which is a continuation of Ser. No. 08/239,085 now abandoned, filed May 6, 1994.
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| Designated Country: |
AT BB BG BR BY CH CZ DK ES FI HU KP KR KZ LK LU LV MG MN MW NO NZ PL PT RO RU SD SK UA DE FR GB IT NL SE
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| Family: |
Show 8 known family members
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First Claim:
Show all 5 claims |
We claim:
1. A shaped article consisting of:
- (a) a seamless three-dimensional layered composite that is flexible, waterproof, and water vapor permeable in which;
- (b) the composite consists of:
- (i) a microporous, elastomeric, thermoplastic polyester or polyether-polyurethane layer I that is water vapor permeable; and
- (ii) a continuous, nonporous elastomeric polymer layer II selected from the class consisting of a copolyetherester, a copolyetheresteramide, and a polyurethane, said polymer being waterproof and water vapor permeable.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 24 U.S. patent(s) that reference this one
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