# US 10,246,617 B2 · Adhesives with low VOC and fogging values

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- Number: US 10,246,617 B2
- Document ID: US10246617B2
- Status: Granted
- Kind: B2
- Application number: 15/548,009
- Filed: 2016-02-26
- Published: 2018-02-01
- Granted: 2019-04-02
- Earliest claimed: 2015-03-02
- Assignees: Evonik Degussa GmbH
- Applicants: Evonik Degussa GmbH
- Inventors: Christina Cron; Gabriele Brenner; Bernhard Schleimer
- Web page: https://patentgrep.com/patent/US10246617B2

## CPC

- C09J 167/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C09J167/06 takes precedence)
- C08G 63/16: Dicarboxylic acids and dihydroxy compounds
- C08G 63/183: Terephthalic acids
- C08G 2170/20: Compositions for hot melt adhesives
- 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)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS

## Abstract

The invention relates to hotmelt adhesives based on polyesters, having low VOC and fogging values. In particular, the invention is directed to a polyester based on polycarboxylic acids and di- or polyols, wherein the polyester including dicarboxylic acids of the formula HOOC—(CH2)x-COOH with x>10 and diols of the formula HO—(CH2)y-OH, with the proviso that at least 50 mole percent of the dicarboxylic acids, based on the total amount of polycarboxylic acid components, and at least 50 mole percent of the diols, based on the total amount of di- or polyols, satisfy the condition x+y>18, in hotmelt adhesives.

## Claims

### Claim 1

A hotmelt adhesive comprising polyesters based on polycarboxylic acids and di- or polyols, comprising dicarboxylic acids of the formula HOOC—(CH2)x-COOH with x>10 and diols of the formula HO—(CH2)y-OH, with the proviso that at least 50 mole percent of the dicarboxylic acids, based on the total amount of polycarboxylic acid components, and at least 50 mole percent of the diols, based on the total amount of di- or polyols, satisfy the condition x+y≥18.

### Claim 2 (depends on 1)

The hotmelt adhesive according to claim 1, wherein the hotmelt adhesive are thermoplastic hotmelt adhesive.

### Claim 3 (depends on 1)

The hotmelt adhesive according to claim 1, wherein the hotmelt adhesive are reactive hotmelt adhesive.

### Claim 4 (depends on 1)

An article comprising the hotmelt adhesive according to claim 1.

### Claim 5 (depends on 4)

The article bond according to claim 4, wherein the article is in the wood and furniture industry, in the automotive sector, in the construction industry, shoe industry and textile industry, or in window construction.

### Claim 6 (depends on 1)

A sealant or a coating material comprising the hotmelt adhesive according to claim 1.

### Claim 7 (depends on 4)

The article according to claim 4, wherein the hotmelt adhesive is used in one-pack or two-pack systems.

### Claim 8 (depends on 6)

The sealant or a coating material according to claim 6, wherein the hotmelt adhesive is used in one-pack or two-pack systems.

### Claim 9 (depends on 1)

The hotmelt adhesive according to claim 1, wherein x>12 and y>6.