Claims
- 1. A composite elastic necked bonded material produced by a method comprising the steps of:
- providing a continuously advancing tensioned, necked material; extruding a film of substantially molten elastomer through a die tip;
- depositing the extruded elastomeric film onto the tensioned, necked material within from about 0.1 to about 1 second of exiting the die tip to form a multilayer material; and
- immediately applying pressure to the multilayer material to bond the tensioned, necked material to the elastomeric film.
- 2. A composite elastic necked bonded material produced by a method comprising the steps of:
- providing a first and second continuously advancing sheet, each sheet comprising at least one tensioned, necked material and each sheet advancing in intersecting relationship to form a contact zone;
- extruding a film of substantially molten elastomer through a die tip between the first and second continuously advancing sheet of tensioned, necked material so that the extruded elastomeric film is deposited into the contact zone between the tensioned, necked materials within from about 0.1 to about 1 second of exiting the die tip to form a multilayer material; and
- immediately applying pressure to the multilayer material to bond each tensioned, necked material to the elastomeric film.
- 3. A composite elastic necked bonded material produced by a method comprising the steps of:
- providing a first and second continuously advancing sheet of at least one tensioned, necked material, each sheet comprising at least one tensioned, necked material and each sheet advancing in intersecting relationship to form a contact zone;
- extruding a film of substantially molten pressure sensitive elastomer adhesive through a die tip between the first and second continuously advancing sheet of tensioned, necked material so that the extruded pressure sensitive elastomer adhesive film is deposited into the contact zone between the tensioned, necked materials within from about 0.1 to about 1 second of exiting the die tip to form a multilayer material; and
- immediately applying pressure to the multilayer material utilizing a pressure roll arrangement comprising at least a first roll, a second roll and a controlled gap,
- wherein the controlled gap between the first and second rolls of the pressure roll arrangement is set so that the force required to extend the resulting composite elastic material on the first pull is at least about 25 percent less than the force required to extend an identical composite elastic material prepared in an identical pressure roll arrangement with a pressurized nip such that the rolls are essentially in contact in the absence of material.
Parent Case Info
This application is a division of application Ser. No. 08/276,924 entitled "Composite Elastic Necked-Bonded Material" and filed in the U.S. Patent and Trademark Office on Jul. 19, 1994, which is a continuation-in-part of application Ser. No. 08/089,869 filed on Jul. 12, 1993 now U.S. Pat. No. 5,336,545, which is a continuation of application Ser. No. 07/452,154 filed on Dec. 15, 1989 U.S. Pat. No. 5,226,992, which is a division of application Ser. No. 07/248,518 filed on Sep. 23, 1988, now abandoned.
US Referenced Citations (55)
Foreign Referenced Citations (12)
Number |
Date |
Country |
0019295 |
Nov 1980 |
EPX |
0030418 |
Jun 1981 |
EPX |
0127483 |
Dec 1984 |
EPX |
0180703 |
May 1986 |
EPX |
0237642 |
Sep 1987 |
EPX |
0239080 |
Sep 1987 |
EPX |
0370835 |
May 1990 |
EPX |
2632875 |
Nov 1977 |
DEX |
2757526 |
Jun 1979 |
DEX |
3734963 |
Apr 1988 |
DEX |
648644 |
Jan 1951 |
GBX |
1576436 |
Oct 1980 |
GBX |
Non-Patent Literature Citations (1)
Entry |
Muehlner, Roland O., "Kraton thermoplastic elastomer," Modern Plastics Encyclopedia,McGraw-Hill, vol. 51, No. 10A, pp. 115-116. |
Divisions (2)
|
Number |
Date |
Country |
Parent |
276924 |
Jul 1994 |
|
Parent |
248518 |
Sep 1988 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
452154 |
Dec 1989 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
89869 |
Jul 1993 |
|