# US 10,479,915 B2 · Transient adhesives, methods of making, and methods of use

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- Number: US 10,479,915 B2
- Document ID: US10479915B2
- Status: Granted
- Kind: B2
- Application number: 15/494,949
- Filed: 2017-04-24
- Published: 2017-10-26
- Granted: 2019-11-19
- Earliest claimed: 2016-04-22
- Assignees: Georgia Tech Research Corporation
- Applicants: Georgia Tech Research Corporation
- Inventors: Paul A. Kohl; Anthony Engler, III; Jared Schwartz; Gerald Gourdin; Jisu Jiang; Oluwadamilola Phillips
- Web page: https://patentgrep.com/patent/US10479915B2

## CPC

- C09J 163/00: Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- B32B 7/06: permitting easy separation
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- C09J 169/00: Adhesives based on polycarbonates; Adhesives based on derivatives of polycarbonates
- C09J 171/00: Adhesives based on polyethers obtained by reactions forming an ether link in the main chain (based on polyacetals C09J159/00; based on epoxy resins C09J163/00; based on polythioether-ethers C09J181/02; based on polyethersulfones C09J181/06); Adhesives based on derivatives of such polymers
- B32B 2255/26: Polymeric coating
- B32B 2307/748: Releasability
- B32B 2437/00: Clothing
- B32B 2457/00: Electrical equipment
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

Embodiments of the present disclosure provide for transient adhesive polymers, methods of making transient adhesive polymers, structures including the transient adhesive polymer attaching two portions of the structure to one another, and the like.

## Claims

### Claim 1

A composition, comprising:
a transient polymer adhesive that loses its adhesive properties upon exposure to temperatures from about 0 to about 325° C., wherein the transient polymer adhesive is a thermoplastic, wherein the thermoplastic is represented by the following structure:
wherein R1 and R1′ are each independently selected from CxXy, linear or branched, where X is H or a halogen and x is 1 to 12 and y is x to 2x, and wherein R2 and R2′ are each independently selected from an unsaturated cycloalkyl, wherein R1 and R1′ are the same or different and wherein R2 and R2′ are the same or different.

### Claim 2 (depends on 1)

The composition of claim 1, wherein R2 and R2′ are each independently selected from selected from

### Claim 3 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive has a Tg of 10 to 80° C.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive has a TDonset of about 80 to 325° C.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive further comprises a catalyst and has a TDonset(cat) of about 25 to 200° C.

### Claim 6 (depends on 5)

The composition of claim 5, wherein the catalyst is a strong acid catalyst or a strong base catalyst.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive has a Tg of 10 to 80° C., and wherein the transient polymer adhesive has a TDonset of about 80 to 325° C. or wherein the transient polymer adhesive further comprises a catalyst and has a TDonset(cat) of about 25 to 200° C.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive loses its adhesive properties upon exposure to temperatures from about 80 to about 325° C.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the transient polymer adhesive loses its adhesive properties upon exposure to temperatures from about 25 to about 200° C.