LAMINATED STRUCTURES WITH COMPOSITE ADHESIVE POLYMERIC INTERLAYER COMPRISING COHESIVE DEBONDING ZONES FOR ENHANCED PERFORMANCE

1 : A composite adhesive polymeric interlayer (CAPI) comprising:

(I) a first stack comprising a first top adhesive polymeric interlayer (TAPI) and a bulk adhesive polymeric interlayer (BAPI) adhered to each other; or

(II) a second stack comprising a first a submicron-thick superbonding layer and a BAPI adhered to each other; or

(III) a third stack comprising a first submicron-thick superbonding layer, a first TAPI layer, and a BAPI; wherein the first submicron-thick superbonding layer adheres to the first TAPI layer on one side; the first TAPI layer adheres to the first superbonding layer on one side and the BAPI layer on the other side;

wherein each of the CAPI, the TAPI, the BAPI and the sub-micron superbonding layer comprise a first surface and a second surface;

wherein the TAPI comprises a first polymeric material and the BAPI comprises a second polymeric material;

wherein the TAPI and/or the BAPI comprise discrete and/or continuous debonding zones;

wherein, the first submicron-thick superbonding layer substantially covers the respective TAPI or the BAPI surface;

wherein the cohesive debonding zones comprise a first debonding zone that is discrete or continuous and having a maximum mean peel strength;

wherein the cohesive debonding zones comprise a second cohesive debonding zone that is discrete or continuous with a minimum mean peel strength greater than about 0.01 kJ/m 2 ; and

wherein the maximum mean peel strength is at least about 2 times greater than the minimum mean peel strength.

2 : The CAPI as recited in claim 1 , wherein:

the debonding zones are located within 10% thickness of the CAPI from the first and/or the second surface of the CAPI, and

the first debonding zone and the second debonding zone are within the 10% thickness of the API proximate to the first surface.

3 : The CAPI as recited in claim 1 , wherein one of the first or second debonding zones comprises the first polymeric material or the second polymeric material, and the other of the first and second debonding zones comprises a first material chemically and/or physically different from the first polymeric material and/or the second polymeric material.

4 : The CAPI as recited in claim 3 , wherein the first material is characterized by:

(i) a molecular weight different than that of the first polymeric material and/or the second polymeric material,

(ii) a crystallinity different than that of the first polymeric material and/or the second polymeric material,

(iii) a density different than that of the first polymeric material and/or the second polymeric material,

(iv) a glass transition temperature different than that of the first polymeric material and/or the second polymeric material,

(v) a melt flow index different than that of the first polymeric material and/or the second polymeric material,

(vi) a Young's modulus different than that of the first polymeric material and/or the second polymeric material, or

(vii) a combination of one or more of said characteristics.

5 : The CAPI as recited in claim 1 , wherein at least one of the first debonding zone and the second debonding zone is coplanar to the CAPI, the TAPI, or the BAPI.

6 : The CAPI as recited in claim 1 , wherein the first debonding zone and the second debonding zone are discrete, and are located in one plane or in more than one plane.

7 : The CAPI as recited in claim 1 , wherein the cohesive discrete debonding zones are distributed in an ordered pattern.

8 : The CAPI as recited in claim 1 , wherein the cohesive discrete debonding zones are distributed stochastically.

9 : The CAPI as recited in claim 1 , wherein at least one of the first debonding zone or the second debonding zone is characterized by:

(i) a regular shape,

(ii) a stochastic/random shape,

(iii) one-dimensional patterns, and/or

(iv) a cluster of regular, random, and/or one-dimensional patterns.

10 : The CAPI as recited in claim 9 , wherein the effective diameter of the regular shaped discrete debonding zone, the random shaped discrete debonding zone, or the cluster discrete zone is from about 1 multiple to about 150,000,000-multiples of the thickness of the discrete debonding zone.

11 : The CAPI as recited in claim 1 , wherein the weight content of one of said first and second debonding zones as a percentage of the total of the API is in the range of from about 0.00001% to about 30%.

12 : The CAPI as recited in claim 1 , wherein the first debonding zone with maximum mean peel strength has a mean peel strength that is from about 2 times to about 250 times greater than a mean peel strength of the second debonding zone with minimum mean peel strength.

13 : The CAPI as recited in claim 1 , wherein the API comprises at least two zones, wherein at least one of the zones has a mean peel strength of from about 0.01 to about 12.0 kJ/m 2 .

14 : The CAPI as recited in claim 1 , wherein the first polymeric material or the second polymeric material comprises a polyvinylacetal, an ionomer, a thermoplastic elastomer, an ethyl vinylacetate, or combinations thereof.

15 : The CAPI as recited in claim 1 , wherein the first material comprises a polyvinylacetal, an ionomer, a thermoplastic elastomer, a silane, an ethyl vinylacetate, a fluoropolymer, a polyvinyl-alcohol, or combinations thereof.

16 : The CAPI as recited in claim 13 , wherein at least one of the cohesive debonding zones comprises the ionomer, wherein the ionomer resin is a sodium-neutralized ethylene-α,β-unsaturated carboxylic acid copolymer.

17 : The CAPI as recited in claim 13 , wherein the polyvinylacetal is a polyvinylbutyral.

18 : The CAPI as recited in claim 14 , wherein the second debonding zone is the first polymeric material or the second polymeric material, and the first polymeric material or the second polymeric material is an ionomer resin.

19 : The CAPI as recited in claim 14 , wherein the first debonding zone is the first polymeric material or the second polymeric material, and the first polymeric material or the second polymeric material is a polyvinylacetal.

20 : The CAPI as recited in claim 18 , wherein the first material is an adhesion modifying agent.

21 - 38 . (canceled)