# US 4,397,991 A · Polyesteramide adhesives and sealing compounds

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- Number: US 4,397,991 A
- Document ID: US4397991A
- Status: Granted
- Kind: A
- Application number: 06/364,241
- Filed: 1982-04-01
- Granted: 1983-08-09
- Earliest claimed: 1981-04-24
- Assignees: Schering Corporation
- Inventors: Manfred Drawert; Wolfgang Imoehl
- Web page: https://patentgrep.com/patent/US4397991A

## CPC

- C08G 69/44: Polyester-amides
- C09J 177/12: Polyester-amides
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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)

## Abstract

What are disclosed are polyesteramides prepared by the condensation of dimerized fatty acids having 16-44 carbon atoms with ethylene diamine and with aliphatic co-diamines which are optionally substituted and optionally interrupted by heteroatoms, with diglycolamine, and with aliphatic, cycloaliphatic, aromatic, or araliphatic co-dicarboxylic acids; mixtures of such polyesteramides with copolymers of ethylene and vinyl acetate; and methods for using these polyesteramides or mixtures for the adhesion of organic or inorganic substrates to themselves or to each other, or as sealing compounds.

## Claims

### Claim 1

A polyesteramide prepared by the condensation of
(A) a dimerized fatty acid having 16 to 44 carbon atoms, with
(B) ethylene diamine, with
(C) at least one diamine of the formula
H.sub.2 N--R--NH.sub.2,
wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and with
(D) diglycolamine.

### Claim 2 (depends on 1)

A polyesteramide as in claim 1 which additionally comprises condensed therein
(E) a dicarboxylic acid of the formula
R.sup.2 OOC--R.sup.1 --COOR.sup.2,
wherein R.sup.1 is aliphatic, cycloaliphatic, aromatic, or araliphatic hydrocarbon having 4 to 12 carbon atoms and R.sup.2 is hydrogen or alkyl having 1 to 8 carbon atoms.

### Claim 3

A polyesteramide prepared by the condensation of substantially equivalent amounts of (1) an acid component comprising
(A) a dimerized fatty acid having 16 to 44 carbon atoms, and
(E) a dicarboxylic acid of the formula
R.sup.2 OOC--R.sup.1 --COOR.sup.2,
wherein R.sup.1 is aliphatic, cycloaliphatic, aromatic, or araliphatic hydrocarbon having 1 to 8 carbon atoms,
wherein the equivalence ratio of component (A) to component (E) is between 1:0.0 to 0.1:0.9, with (2) an amine and hydroxy component comprising
(B) ethylene diamine,
(C) at least one diamine of the formula
H.sub.2 N--R--NH.sub.2,
wherein R is aliphatic hydrocarbon having 3 to 36 carbon atoms which can be interrupted by one or more hetero atoms, and
(D) diglycolamine
wherein the equivalence ratio of components (B) and (C) to component (D) is between 0.3:0.7 and 0.9:0.1.

### Claim 4 (depends on 3)

A polyesteramide as in claim 3 wherein the equivalence ratio of component (B) to component (C) is between 0.05:0.25 and 0.25:0.25 at the limiting diglycolamine (D) content of 0.7 equivalent, is between 0.1:0.8 and 0.8:0.1 at the limiting diglycolamine (D) content of 0.1 equivalent, and has intermediate values at diglycolamine contents between said limiting contents.

### Claim 5 (depends on 3)

A mixture of a polyesteramide as in claim 3 with a copolymer of ethylene and vinyl acetate.

### Claim 6 (depends on 5)

A mixture as in claim 5 comprising 50 percent or more of said copolymer.