Claims
- 1. A composite adhesive layer comprising:
- a predetermined open, continuous, three-dimensional, discrete, skeletal structure of a first adhesive having a multiplicity of interconnected voids throughout the structure; and at least one continuous layer of a second adhesive having different viscoelastic properties from the first adhesive and extending through the interconnected voids.
- 2. An adhesive layer according to claim 1 wherein the open discrete skeletal structure comprises intertwined serpentine strands of the first adhesive.
- 3. An adhesive layer according to claim 1 wherein the open discrete skeletal structure comprises a woven or non-woven mat of the first adhesive.
- 4. An adhesive layer according to claim 1 wherein the open discrete skeletal structure is an open cell foam of the first adhesive.
- 5. An adhesive layer according to claim 1 wherein either the first or second adhesive is a pressure sensitive adhesive.
- 6. An adhesive layer according to claim 1 wherein either the first or second adhesive is a hot-tackifying adhesive.
- 7. An adhesive layer according to claim 1 wherein either the first or second adhesive is a thermoset adhesive.
- 8. A composite adhesive layer having a first and a second major surface comprising:
- a first adhesive having a predetermined open, continuous, three-dimensional, skeletal structure with a multiplicity of interconnected voids throughout the structure;
- and at least one continuous layer of a second adhesive, having different viscoelastic properties from the first adhesive, and extending through the interconnected voids of the first adhesive.
- wherein the first and second major surface each contain distinct regions of said first adhesive and said second adhesive.
Parent Case Info
This is a continuation of application Ser. No. 07/815,173 filed Dec. 31, 1991, now U.S. Pat. No. 5,585,178.
US Referenced Citations (27)
Foreign Referenced Citations (2)
Number |
Date |
Country |
429269 |
Nov 1990 |
EPX |
0 429 269 |
May 1991 |
EPX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
815173 |
Dec 1991 |
|